Author: "John" <jadams@...> Time: Thu Oct 7, 2004 10:24 pm PDT Link
When you choose a Sensenich fixed pitch prop it comes with a 2.25
inch space between the prop and the engine. That spacer is made of
AL. You take it off and put the heavy brass spacer also 2.25 inch
thick in its place. No changes to the cowl!
John Adams
--- In RV7and7A@yahoogroups.com, "s_tones2000" <jeezvax@c...> wrote:
> Does the spacer require you to modify the cowl?
>
> Steve
> --- In RV7and7A@yahoogroups.com, "John" <jadams@s...> wrote:
> > Oh, I forgot to mention the best part about this heavy prop
> spacer,
> > before I had a vibration at 2500 rpm and now it is gone. The
> engine
> > is smooth at all RPMs... very nice!
> > John
> >
> > --- In RV7and7A@yahoogroups.com, "John" <jadams@s...> wrote:
> > > I just added a 24.5 lb brass prop spacer from Sabre
> Manufacturing
> > to
> > > my RV7 with sensenich and 0-360. It moved my cg an inch
forward
> > and
> > > allows me to pack 90 lbs safely in the baggage area with me and
> my
> > > wife on board.
> > > John Adams
> > >
> > > --- In RV7and7A@yahoogroups.com, "Rich" <easylivin_ak@y...>
> wrote:
> > > > A while back I was a bit hasty in responding to a thread on
> the
> > > > value of CS props over fixed pitch. With the great
performance
> I
> > > was
> > > > getting in my RV-8 with fixed pitch I made a hasty comment
> that
> > a
> > > CS
> > > > prop was a waste of money. So, to Roberta and the rest of you
> CS
> > > > people I apologize. I am actually considering putting a CS
> prop
> > on
> > > > my RV-7A now that I've heard so much about aft CG problems
> with
> > > the
> > > > RV-7's here in this group. It would at least help correct
that
> > > > problem although at great expense. I still don't think it is
> > > > necessary performance-wise unless you need high density
> altitude
> > > > performance or shorter field take offs. The RV's perform so
> well
> > > > even with the fixed pitch under normal conditions.
> > > >
> > > > Rich
> > > > Eagle River, Alaska
> > > > RV-7A wing and RV-8 completed
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Author: "Rich" <easylivin_ak@...> Time: Fri Oct 8, 2004 9:33 am PDT Link
John, can you give us a web address or another way to contact Sabre?
Thanks,
Rich
--- In RV7and7A@yahoogroups.com, "John" <jadams@s...> wrote:
> When you choose a Sensenich fixed pitch prop it comes with a 2.25
> inch space between the prop and the engine. That spacer is made
of
> AL. You take it off and put the heavy brass spacer also 2.25 inch
> thick in its place. No changes to the cowl!
> John Adams
> --- In RV7and7A@yahoogroups.com, "s_tones2000" <jeezvax@c...>
wrote:
> > Does the spacer require you to modify the cowl?
> >
> > Steve
> > --- In RV7and7A@yahoogroups.com, "John" <jadams@s...> wrote:
> > > Oh, I forgot to mention the best part about this heavy prop
> > spacer,
> > > before I had a vibration at 2500 rpm and now it is gone. The
> > engine
> > > is smooth at all RPMs... very nice!
> > > John
> > >
> > > --- In RV7and7A@yahoogroups.com, "John" <jadams@s...> wrote:
> > > > I just added a 24.5 lb brass prop spacer from Sabre
> > Manufacturing
> > > to
> > > > my RV7 with sensenich and 0-360. It moved my cg an inch
> forward
> > > and
> > > > allows me to pack 90 lbs safely in the baggage area with me
and
> > my
> > > > wife on board.
> > > > John Adams
> > > >
> > > > --- In RV7and7A@yahoogroups.com, "Rich" <easylivin_ak@y...>
> > wrote:
> > > > > A while back I was a bit hasty in responding to a thread
on
> > the
> > > > > value of CS props over fixed pitch. With the great
> performance
> > I
> > > > was
> > > > > getting in my RV-8 with fixed pitch I made a hasty comment
> > that
> > > a
> > > > CS
> > > > > prop was a waste of money. So, to Roberta and the rest of
you
> > CS
> > > > > people I apologize. I am actually considering putting a CS
> > prop
> > > on
> > > > > my RV-7A now that I've heard so much about aft CG problems
> > with
> > > > the
> > > > > RV-7's here in this group. It would at least help correct
> that
> > > > > problem although at great expense. I still don't think it
is
> > > > > necessary performance-wise unless you need high density
> > altitude
> > > > > performance or shorter field take offs. The RV's perform
so
> > well
> > > > > even with the fixed pitch under normal conditions.
> > > > >
> > > > > Rich
> > > > > Eagle River, Alaska
> > > > > RV-7A wing and RV-8 completed
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Author: "pepeborja925mb" <pepeborja925mb@...> Time: Fri Oct 8, 2004 9:34 am PDT Link
Why are RV7 airplanes coming too nose heavy? Is it just a poor
design from Van's part or was the concept of "inexpensive, light,
fast and responsive" out the door and the plane designed for
expensive prop set-ups?
What can I do to avoid that mess? I'm trying to stay true to Van's
concept of "inexpensive, fast, light, and responsive". Me thinks
adding 26 pounds of dead weight is counter to that premise.
Jose Borja
Elk Mound, WI.
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Author: "David Domeier" <davidd010@...> Time: Fri Oct 8, 2004 10:29 am PDT Link
--- In RV7and7A@yahoogroups.com, "Rich" <easylivin_ak@y...> wrote:
> John, can you give us a web address or another way to contact Sabre?
> Thanks,
> Rich
The owner is Sam Tilliman. The web site is
http://www.geocities.com/sabermfg/
I've done business with Sam and he is very OK.
dd
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Author: "John" <jadams@...> Time: Fri Oct 8, 2004 10:38 am PDT Link
Jose, I think you mean tail heavy, as to why I don't know of
course. But My guess is the 7 was designed to fit the heavy 200 hp
engine and the constant speed prop. I went lighter 180 hp and fixed
pitch prop. With that combination and no added weight up front you
can not safely load the airplane to 1800lbs and fly the tanks empty
(or to 5 gal). The compromise for me was to put the heavy spacer
on, now I have 90 lbs available for baggage with me and my wife on
board. I'm happy, the engine is smoother and I haven't notice the
extra weight effect up front.
John Adams
--- In RV7and7A@yahoogroups.com, "pepeborja925mb"
<pepeborja925mb@y...> wrote:
> Why are RV7 airplanes coming too nose heavy? Is it just a poor
> design from Van's part or was the concept of "inexpensive, light,
> fast and responsive" out the door and the plane designed for
> expensive prop set-ups?
>
> What can I do to avoid that mess? I'm trying to stay true to
Van's
> concept of "inexpensive, fast, light, and responsive". Me thinks
> adding 26 pounds of dead weight is counter to that premise.
>
> Jose Borja
> Elk Mound, WI.
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Author: "Rich" <easylivin_ak@...> Time: Fri Oct 8, 2004 11:19 am PDT Link
Jose, From what I am reading here in this group they are not nose
heavy but instead tail heavy. I think Van's just assumed that most
people will want the CS prop which seems to help a lot. That makes
it hard for those of us who like fixed pitch, but not undoable. You
just need to keep as much weight forward as possible when building.
Hope I am reading people correctly on all this because it is just
what I have gathered from the postings I have read. Please correct
me if I am wrong.
Rich
--- In RV7and7A@yahoogroups.com, "pepeborja925mb"
<pepeborja925mb@y...> wrote:
> Why are RV7 airplanes coming too nose heavy? Is it just a poor
> design from Van's part or was the concept of "inexpensive, light,
> fast and responsive" out the door and the plane designed for
> expensive prop set-ups?
>
> What can I do to avoid that mess? I'm trying to stay true to
Van's
> concept of "inexpensive, fast, light, and responsive". Me thinks
> adding 26 pounds of dead weight is counter to that premise.
>
> Jose Borja
> Elk Mound, WI.
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Author: "pepeborja925mb" <pepeborja925mb@...> Time: Fri Oct 8, 2004 11:41 am PDT Link
My bad... I should have wrote tail heavy. It just doesn't make any
sense for those of us looking for the 320/fixed pitch prop
combination. If true, then it looks like Van dropped the ball in
keeping with the "inexpensive, light, responsible, and simple"
tradition. Us builders wishing to keep the "Van's tradition", as
spelled in his video, are now penalized and have to add extra weight
which in turn compunds against the 320 choice. Bummer.
Appears a guy has to be real careful in finishing the tail to keep
it light.
Jose Borja
Elk Mound, WI
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Author: Steve Eberhart <steve@...> Time: Fri Oct 8, 2004 1:59 pm PDT Link
The simple solution would be to have an optional longer engine mount for
the O-320 fixed pitch/wood prop installations. It would simply stick
the engine farther forward to achieve the ideal center of gravity. I
haven't taken the time to calculate how much the engine needs to be
moved forward, but, I would think a couple of inches would help a bunch.
Steve Eberhart
RV-7A - still working on wings
probably an O-320 and wood prop
pepeborja925mb wrote:
> My bad... I should have wrote tail heavy. It just doesn't make any
> sense for those of us looking for the 320/fixed pitch prop
> combination. If true, then it looks like Van dropped the ball in
> keeping with the "inexpensive, light, responsible, and simple"
> tradition. Us builders wishing to keep the "Van's tradition", as
> spelled in his video, are now penalized and have to add extra weight
> which in turn compunds against the 320 choice. Bummer.
>
> Appears a guy has to be real careful in finishing the tail to keep
> it light.
>
> Jose Borja
> Elk Mound, WI
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Author: "Rich" <easylivin_ak@...> Time: Fri Oct 8, 2004 2:24 pm PDT Link
Jose,
Another thing I thought of in defense of Van's here:
The RV-6 (precurser to RV-7) was designed back when we had engines
with heavy starters, heavy generators, heavy batteries, plus that CS
prop all up front FWF. Now how many of us are still using those
components today ?! Maybe they just couldn't move the wing in the 7
without incurring a huge cost overrun or major redesign of the whole
plane. I don't know exactly what they did going from the 6 to the 7
so maybe someone else has a comment on that.
Rich
--- In RV7and7A@yahoogroups.com, "pepeborja925mb"
<pepeborja925mb@y...> wrote:
> My bad... I should have wrote tail heavy. It just doesn't make
any
> sense for those of us looking for the 320/fixed pitch prop
> combination. If true, then it looks like Van dropped the ball in
> keeping with the "inexpensive, light, responsible, and simple"
> tradition. Us builders wishing to keep the "Van's tradition", as
> spelled in his video, are now penalized and have to add extra
weight
> which in turn compunds against the 320 choice. Bummer.
>
> Appears a guy has to be real careful in finishing the tail to keep
> it light.
>
> Jose Borja
> Elk Mound, WI
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Author: Walter Tondu <walter@...> Time: Fri Oct 8, 2004 2:34 pm PDT Link
On 10/08 9:06, Rich wrote:
> Jose,
> Another thing I thought of in defense of Van's here:
> The RV-6 (precurser to RV-7) was designed back when we had engines
> with heavy starters, heavy generators, heavy batteries, plus that CS
> prop all up front FWF. Now how many of us are still using those
> components today ?! Maybe they just couldn't move the wing in the 7
> without incurring a huge cost overrun or major redesign of the whole
> plane. I don't know exactly what they did going from the 6 to the 7
> so maybe someone else has a comment on that.
I believe that this CG thread applies to 7's and not so
much for 7A's? That nose gear adds forward cg weight via the
engine mount modifications, nose gear leg, nose wheel and main gear
weldment which is just infront of the spar.
Anybody have CG issues with an A model?
--
Walter Tondu
http://www.rv7-a.com
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Author: customtrans@... Time: Fri Oct 8, 2004 2:52 pm PDT Link
Does that mean that you should NOT put a wheel on the tail??? Sorry
couldn't resist.
sa
-----Original Message-----
From: Rich [mailto:easylivin_ak@yahoo.com]
Sent: Friday, October 08, 2004 10:57 AM
To: RV7and7A@yahoogroups.com
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Jose, From what I am reading here in this group they are not nose
heavy but instead tail heavy. I think Van's just assumed that most
people will want the CS prop which seems to help a lot. That makes
it hard for those of us who like fixed pitch, but not undoable. You
just need to keep as much weight forward as possible when building.
Hope I am reading people correctly on all this because it is just
what I have gathered from the postings I have read. Please correct
me if I am wrong.
Rich
--- In RV7and7A@yahoogroups.com, "pepeborja925mb"
<pepeborja925mb@y...> wrote:
> Why are RV7 airplanes coming too nose heavy? Is it just a poor
> design from Van's part or was the concept of "inexpensive, light,
> fast and responsive" out the door and the plane designed for
> expensive prop set-ups?
>
> What can I do to avoid that mess? I'm trying to stay true to
Van's
> concept of "inexpensive, fast, light, and responsive". Me thinks
> adding 26 pounds of dead weight is counter to that premise.
>
> Jose Borja
> Elk Mound, WI.
Van's Air Force - World Wide Wing
www.vansaircraft.net
Yahoo! Groups Sponsor
ADVERTISEMENT
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[Non-text portions of this message have been removed]
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Fri Oct 8, 2004 4:25 pm PDT Link
My 7A with 0-360 A1A, Hartzell prop, and steam gage panel balances perfectly at 79.33" EWCG and 1117 lbs EW.
Roberta
----- Original Message -----
From: Walter Tondu
To: RV7and7A@yahoogroups.com
Sent: Friday, October 08, 2004 4:27 PM
Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
On 10/08 9:06, Rich wrote:
> Jose,
> Another thing I thought of in defense of Van's here:
> The RV-6 (precurser to RV-7) was designed back when we had engines
> with heavy starters, heavy generators, heavy batteries, plus that CS
> prop all up front FWF. Now how many of us are still using those
> components today ?! Maybe they just couldn't move the wing in the 7
> without incurring a huge cost overrun or major redesign of the whole
> plane. I don't know exactly what they did going from the 6 to the 7
> so maybe someone else has a comment on that.
I believe that this CG thread applies to 7's and not so
much for 7A's? That nose gear adds forward cg weight via the
engine mount modifications, nose gear leg, nose wheel and main gear
weldment which is just infront of the spar.
Anybody have CG issues with an A model?
--
Walter Tondu
http://www.rv7-a.com
Van's Air Force - World Wide Wing
www.vansaircraft.net
Yahoo! Groups Sponsor
ADVERTISEMENT
------------------------------------------------------------------------------
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Fri Oct 8, 2004 4:25 pm PDT Link
Fill it with helium to reduce tail weight.
Roberta
----- Original Message -----
From: customtrans@qwest.net
To: RV7and7A@yahoogroups.com
Sent: Friday, October 08, 2004 4:41 PM
Subject: RE: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Does that mean that you should NOT put a wheel on the tail??? Sorry
couldn't resist.
sa
-----Original Message-----
From: Rich [mailto:easylivin_ak@yahoo.com]
Sent: Friday, October 08, 2004 10:57 AM
To: RV7and7A@yahoogroups.com
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Jose, From what I am reading here in this group they are not nose
heavy but instead tail heavy. I think Van's just assumed that most
people will want the CS prop which seems to help a lot. That makes
it hard for those of us who like fixed pitch, but not undoable. You
just need to keep as much weight forward as possible when building.
Hope I am reading people correctly on all this because it is just
what I have gathered from the postings I have read. Please correct
me if I am wrong.
Rich
--- In RV7and7A@yahoogroups.com, "pepeborja925mb"
<pepeborja925mb@y...> wrote:
> Why are RV7 airplanes coming too nose heavy? Is it just a poor
> design from Van's part or was the concept of "inexpensive, light,
> fast and responsive" out the door and the plane designed for
> expensive prop set-ups?
>
> What can I do to avoid that mess? I'm trying to stay true to
Van's
> concept of "inexpensive, fast, light, and responsive". Me thinks
> adding 26 pounds of dead weight is counter to that premise.
>
> Jose Borja
> Elk Mound, WI.
Van's Air Force - World Wide Wing
www.vansaircraft.net
Yahoo! Groups Sponsor
ADVERTISEMENT
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Fri Oct 8, 2004 4:27 pm PDT Link
The whole spare box area on the 6 is completely different from the 7. Other than looking similar, I think the 7 is a completely different plane with little that could be interchanged. The cowl and canopy, but little else.
The reason behind the 7's existence was to bring the design into the 21st century with the new building technology and to allow for the demand for larger engines. I think Van' may have expected those going for smaller engine size would build the 9, but they may have overlooked those builders who preferred the smaller engines and fixed pitch props, yet still wanted the aerobatic possibilities. But an aft CG does allow for better snaprolls.
JMHO
Roberta
----- Original Message -----
From: Rich
To: RV7and7A@yahoogroups.com
Sent: Friday, October 08, 2004 4:06 PM
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Jose,
Another thing I thought of in defense of Van's here:
The RV-6 (precurser to RV-7) was designed back when we had engines
with heavy starters, heavy generators, heavy batteries, plus that CS
prop all up front FWF. Now how many of us are still using those
components today ?! Maybe they just couldn't move the wing in the 7
without incurring a huge cost overrun or major redesign of the whole
plane. I don't know exactly what they did going from the 6 to the 7
so maybe someone else has a comment on that.
Rich
--- In RV7and7A@yahoogroups.com, "pepeborja925mb"
<pepeborja925mb@y...> wrote:
> My bad... I should have wrote tail heavy. It just doesn't make
any
> sense for those of us looking for the 320/fixed pitch prop
> combination. If true, then it looks like Van dropped the ball in
> keeping with the "inexpensive, light, responsible, and simple"
> tradition. Us builders wishing to keep the "Van's tradition", as
> spelled in his video, are now penalized and have to add extra
weight
> which in turn compunds against the 320 choice. Bummer.
>
> Appears a guy has to be real careful in finishing the tail to keep
> it light.
>
> Jose Borja
> Elk Mound, WI
Van's Air Force - World Wide Wing
www.vansaircraft.net
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Author: "John" <jadams@...> Time: Fri Oct 8, 2004 7:01 pm PDT Link
Steve, this is an excellent idea! Also, a good solution for the o-
360 180 hp version. With that engine you have 2.25 inches you could
move the engine forward. I did some simple calculations and you
almost get inch per inch movement of the CG with movemnt of the
engine forward. Vans, I hope you are reading this! I'll order my
new motor mount right now! I could take 24 lbs out of my airplane's
empty weight and have the CG in the right spot for full use of the
baggage area! Light is better but balance is essential!
John Adams
--- In RV7and7A@yahoogroups.com, Steve Eberhart <steve@n...> wrote:
>
> The simple solution would be to have an optional longer engine
mount for
> the O-320 fixed pitch/wood prop installations. It would simply
stick
> the engine farther forward to achieve the ideal center of gravity.
I
> haven't taken the time to calculate how much the engine needs to
be
> moved forward, but, I would think a couple of inches would help a
bunch.
>
> Steve Eberhart
> RV-7A - still working on wings
> probably an O-320 and wood prop
>
> pepeborja925mb wrote:
> > My bad... I should have wrote tail heavy. It just doesn't make
any
> > sense for those of us looking for the 320/fixed pitch prop
> > combination. If true, then it looks like Van dropped the ball
in
> > keeping with the "inexpensive, light, responsible, and simple"
> > tradition. Us builders wishing to keep the "Van's tradition",
as
> > spelled in his video, are now penalized and have to add extra
weight
> > which in turn compunds against the 320 choice. Bummer.
> >
> > Appears a guy has to be real careful in finishing the tail to
keep
> > it light.
> >
> > Jose Borja
> > Elk Mound, WI
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Author: "Bob" <nutjob911@...> Time: Fri Oct 8, 2004 7:01 pm PDT Link
Roberta : Thank you, hard numbers from finished ships are tough to
come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs EW,
are you including 6 or 8 qts oil. What happend when you added
fuel,How far foward did cg go with 1/4, 1/2, 3/4, full tanks.Do you
have manual trim or electric, lights, antenna, in your ships emp?
When you built your emp did you do epoxy primer with wet set rivits?
Did you cut the lighting holes,the new elevator horns have holes did
you upgrade? I see a lot of opinions and arguing of late a little
clarity from flying members will go a long way to put things right.
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> My 7A with 0-360 A1A, Hartzell prop, and steam gage panel balances
perfectly at 79.33" EWCG and 1117 lbs EW.
>
> Roberta
> ----- Original Message -----
> From: Walter Tondu
> To: RV7and7A@yahoogroups.com
> Sent: Friday, October 08, 2004 4:27 PM
> Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> On 10/08 9:06, Rich wrote:
>
> > Jose,
> > Another thing I thought of in defense of Van's here:
> > The RV-6 (precurser to RV-7) was designed back when we had
engines
> > with heavy starters, heavy generators, heavy batteries, plus
that CS
> > prop all up front FWF. Now how many of us are still using
those
> > components today ?! Maybe they just couldn't move the wing in
the 7
> > without incurring a huge cost overrun or major redesign of the
whole
> > plane. I don't know exactly what they did going from the 6 to
the 7
> > so maybe someone else has a comment on that.
>
> I believe that this CG thread applies to 7's and not so
> much for 7A's? That nose gear adds forward cg weight via the
> engine mount modifications, nose gear leg, nose wheel and main
gear
> weldment which is just infront of the spar.
>
> Anybody have CG issues with an A model?
> --
> Walter Tondu
> http://www.rv7-a.com
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> -------------------------------------------------------------------
-----------
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>
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>
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Sat Oct 9, 2004 7:05 am PDT Link
8 qts. oil, no fuel, manual trim, system 6 lights, two Duckworks landing lights, shark fin xponder, bent whip comm both mounted aft of rear baggage bulkhead, no antennas in tail. I did not primer anything internally in the tail that was Alclad and used zinc chromate on bar non alclad parts (rattle can). I did a QB kit and did not add any internal primer to the wings or fuselage. Exterior of plane was epoxy primered (E-420 white) and painted in Aerothane. ELT 450 mounted just aft of rear elevator belcrank.Strobe power unit mounted on right flap cover in baggage compt. Full steam gage panel with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24 circuit breakers, interior fully upholstered and carpeted and sound proofed (I have a tipup canopy). PC680 battery mounted per Van's on lower right side of FW. Everything else is pretty much Van's standard using
0-360 A1A Lycoming
Hartzell BA C/S prop (74")
McCauley Gov.
carb heat muff
Cabin heat muff
Vans FWF kit for 0-360 engines
I am within the balance envelope by at least 1" using every possible loading configuration up to 1800 lbs gross. I ran numbers for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two 250 lb people and no baggage (fuel and no fuel) and still stayed in balance.
For those getting ready to calculate or plan, fuel loads cause only very slight changes in CG. Passengers and baggage cause more shift in CG.
Hope this helps,
Roberta
Flying and Lovin' It!!!
----- Original Message -----
From: Bob
To: RV7and7A@yahoogroups.com
Sent: Friday, October 08, 2004 8:37 PM
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Roberta : Thank you, hard numbers from finished ships are tough to
come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs EW,
are you including 6 or 8 qts oil. What happend when you added
fuel,How far foward did cg go with 1/4, 1/2, 3/4, full tanks.Do you
have manual trim or electric, lights, antenna, in your ships emp?
When you built your emp did you do epoxy primer with wet set rivits?
Did you cut the lighting holes,the new elevator horns have holes did
you upgrade? I see a lot of opinions and arguing of late a little
clarity from flying members will go a long way to put things right.
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> My 7A with 0-360 A1A, Hartzell prop, and steam gage panel balances
perfectly at 79.33" EWCG and 1117 lbs EW.
>
> Roberta
> ----- Original Message -----
> From: Walter Tondu
> To: RV7and7A@yahoogroups.com
> Sent: Friday, October 08, 2004 4:27 PM
> Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> On 10/08 9:06, Rich wrote:
>
> > Jose,
> > Another thing I thought of in defense of Van's here:
> > The RV-6 (precurser to RV-7) was designed back when we had
engines
> > with heavy starters, heavy generators, heavy batteries, plus
that CS
> > prop all up front FWF. Now how many of us are still using
those
> > components today ?! Maybe they just couldn't move the wing in
the 7
> > without incurring a huge cost overrun or major redesign of the
whole
> > plane. I don't know exactly what they did going from the 6 to
the 7
> > so maybe someone else has a comment on that.
>
> I believe that this CG thread applies to 7's and not so
> much for 7A's? That nose gear adds forward cg weight via the
> engine mount modifications, nose gear leg, nose wheel and main
gear
> weldment which is just infront of the spar.
>
> Anybody have CG issues with an A model?
> --
> Walter Tondu
> http://www.rv7-a.com
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/RV7and7A/
>
> b.. To unsubscribe from this group, send an email to:
> RV7and7A-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
> [Non-text portions of this message have been removed]
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Sat Oct 9, 2004 7:06 am PDT Link
Missed this. I did not cut the lightening holes in my VS or rudder. I didn't drill any in the horns, not sure if there are any. Don't think so.
Roberta
----- Original Message -----
From: Bob
To: RV7and7A@yahoogroups.com
Sent: Friday, October 08, 2004 8:37 PM
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Roberta : Thank you, hard numbers from finished ships are tough to
come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs EW,
are you including 6 or 8 qts oil. What happend when you added
fuel,How far foward did cg go with 1/4, 1/2, 3/4, full tanks.Do you
have manual trim or electric, lights, antenna, in your ships emp?
When you built your emp did you do epoxy primer with wet set rivits?
Did you cut the lighting holes,the new elevator horns have holes did
you upgrade? I see a lot of opinions and arguing of late a little
clarity from flying members will go a long way to put things right.
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> My 7A with 0-360 A1A, Hartzell prop, and steam gage panel balances
perfectly at 79.33" EWCG and 1117 lbs EW.
>
> Roberta
> ----- Original Message -----
> From: Walter Tondu
> To: RV7and7A@yahoogroups.com
> Sent: Friday, October 08, 2004 4:27 PM
> Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> On 10/08 9:06, Rich wrote:
>
> > Jose,
> > Another thing I thought of in defense of Van's here:
> > The RV-6 (precurser to RV-7) was designed back when we had
engines
> > with heavy starters, heavy generators, heavy batteries, plus
that CS
> > prop all up front FWF. Now how many of us are still using
those
> > components today ?! Maybe they just couldn't move the wing in
the 7
> > without incurring a huge cost overrun or major redesign of the
whole
> > plane. I don't know exactly what they did going from the 6 to
the 7
> > so maybe someone else has a comment on that.
>
> I believe that this CG thread applies to 7's and not so
> much for 7A's? That nose gear adds forward cg weight via the
> engine mount modifications, nose gear leg, nose wheel and main
gear
> weldment which is just infront of the spar.
>
> Anybody have CG issues with an A model?
> --
> Walter Tondu
> http://www.rv7-a.com
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/RV7and7A/
>
> b.. To unsubscribe from this group, send an email to:
> RV7and7A-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
> [Non-text portions of this message have been removed]
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ADVERTISEMENT
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Author: "Bob" <nutjob911@...> Time: Sat Oct 9, 2004 8:19 am PDT Link
Roberta: Thank You, I know that was a word full,did you type that
all in one breath?
Bob
-- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> Missed this. I did not cut the lightening holes in my VS or
rudder. I didn't drill any in the horns, not sure if there are any.
Don't think so.
>
> Roberta
> ----- Original Message -----
> From: Bob
> To: RV7and7A@yahoogroups.com
> Sent: Friday, October 08, 2004 8:37 PM
> Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> Roberta : Thank you, hard numbers from finished ships are tough
to
> come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
EW,
> are you including 6 or 8 qts oil. What happend when you added
> fuel,How far foward did cg go with 1/4, 1/2, 3/4, full tanks.Do
you
> have manual trim or electric, lights, antenna, in your ships emp?
> When you built your emp did you do epoxy primer with wet set
rivits?
> Did you cut the lighting holes,the new elevator horns have holes
did
> you upgrade? I see a lot of opinions and arguing of late a
little
> clarity from flying members will go a long way to put things
right.
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
balances
> perfectly at 79.33" EWCG and 1117 lbs EW.
> >
> > Roberta
> > ----- Original Message -----
> > From: Walter Tondu
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 4:27 PM
> > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > On 10/08 9:06, Rich wrote:
> >
> > > Jose,
> > > Another thing I thought of in defense of Van's here:
> > > The RV-6 (precurser to RV-7) was designed back when we had
> engines
> > > with heavy starters, heavy generators, heavy batteries,
plus
> that CS
> > > prop all up front FWF. Now how many of us are still using
> those
> > > components today ?! Maybe they just couldn't move the wing
in
> the 7
> > > without incurring a huge cost overrun or major redesign of
the
> whole
> > > plane. I don't know exactly what they did going from the 6
to
> the 7
> > > so maybe someone else has a comment on that.
> >
> > I believe that this CG thread applies to 7's and not so
> > much for 7A's? That nose gear adds forward cg weight via
the
> > engine mount modifications, nose gear leg, nose wheel and
main
> gear
> > weldment which is just infront of the spar.
> >
> > Anybody have CG issues with an A model?
> > --
> > Walter Tondu
> > http://www.rv7-a.com
> > Van's Air Force - World Wide Wing
> > www.vansaircraft.net
> > Yahoo! Groups Sponsor
> > ADVERTISEMENT
> > ---------------------------------------------------------------
----
> -----------
> > Yahoo! Groups Links
> >
> > a.. To visit your group on the web, go to:
> > http://groups.yahoo.com/group/RV7and7A/
> >
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> > RV7and7A-unsubscribe@yahoogroups.com
> >
> > c.. Your use of Yahoo! Groups is subject to the Yahoo!
Terms
> of Service.
> > [Non-text portions of this message have been removed]
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
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Author: "Peter DeCraene" <peterdecraene@...> Time: Sat Oct 9, 2004 1:42 pm PDT Link
Steve,
I was out of town the last couple of days and did not see this until now. I have a 7A with a O-320-D1A and a Hartzell CS prop. I am ready to fly, waiting for my inspection, and have completed weight and balance. My total weight was 1091 with paint and full interior from Flightline including slightly heavier leather seats. I primed all the internal parts with the exception of the skins. Night VFR panel with vacuum instruments. I ran weight and balance for several possible loading conditions and the only way I could get out of CG was a 110 pound pilot w/120 of bagage. I haven't seen 110 pounds since 8th grade so I'm fealing pretty good about the weights. With a wood prop up front I would be carefull about placing anything extra behind the wing spar. I have my strobe power supply and ELT both behind the lugage bulkhead and my fire extiguisher behind the seats. These could be move forward to help offset the difference in prop weight.
Pete DeCraene
N526PD
waiting is the hardest part of building
----- Original Message -----
From: Steve Eberhart
To: RV7and7A@yahoogroups.com
Sent: Friday, October 08, 2004 3:40 PM
Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
The simple solution would be to have an optional longer engine mount for
the O-320 fixed pitch/wood prop installations. It would simply stick
the engine farther forward to achieve the ideal center of gravity. I
haven't taken the time to calculate how much the engine needs to be
moved forward, but, I would think a couple of inches would help a bunch.
Steve Eberhart
RV-7A - still working on wings
probably an O-320 and wood prop
pepeborja925mb wrote:
> My bad... I should have wrote tail heavy. It just doesn't make any
> sense for those of us looking for the 320/fixed pitch prop
> combination. If true, then it looks like Van dropped the ball in
> keeping with the "inexpensive, light, responsible, and simple"
> tradition. Us builders wishing to keep the "Van's tradition", as
> spelled in his video, are now penalized and have to add extra weight
> which in turn compunds against the 320 choice. Bummer.
>
> Appears a guy has to be real careful in finishing the tail to keep
> it light.
>
> Jose Borja
> Elk Mound, WI
Van's Air Force - World Wide Wing
www.vansaircraft.net
Yahoo! Groups Sponsor
ADVERTISEMENT
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Author: "Cary Rhodes" <rhodeseng@...> Time: Sat Oct 9, 2004 10:55 pm PDT Link
Roberta
What is ur empty weight with the CS prop setup.
I'm betting 1080
Mine is 1053 with a wood prop and I could use a little up-front
weight.
my cg is pretty far aft.
cary rhodes
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> 8 qts. oil, no fuel, manual trim, system 6 lights, two Duckworks
landing lights, shark fin xponder, bent whip comm both mounted aft
of rear baggage bulkhead, no antennas in tail. I did not primer
anything internally in the tail that was Alclad and used zinc
chromate on bar non alclad parts (rattle can). I did a QB kit and
did not add any internal primer to the wings or fuselage. Exterior
of plane was epoxy primered (E-420 white) and painted in Aerothane.
ELT 450 mounted just aft of rear elevator belcrank.Strobe power unit
mounted on right flap cover in baggage compt. Full steam gage panel
with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24
circuit breakers, interior fully upholstered and carpeted and sound
proofed (I have a tipup canopy). PC680 battery mounted per Van's on
lower right side of FW. Everything else is pretty much Van's
standard using
> 0-360 A1A Lycoming
> Hartzell BA C/S prop (74")
> McCauley Gov.
> carb heat muff
> Cabin heat muff
> Vans FWF kit for 0-360 engines
>
> I am within the balance envelope by at least 1" using every
possible loading configuration up to 1800 lbs gross. I ran numbers
for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two 250
lb people and no baggage (fuel and no fuel) and still stayed in
balance.
>
> For those getting ready to calculate or plan, fuel loads cause
only very slight changes in CG. Passengers and baggage cause more
shift in CG.
>
> Hope this helps,
>
> Roberta
>
> Flying and Lovin' It!!!
> ----- Original Message -----
> From: Bob
> To: RV7and7A@yahoogroups.com
> Sent: Friday, October 08, 2004 8:37 PM
> Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> Roberta : Thank you, hard numbers from finished ships are tough
to
> come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
EW,
> are you including 6 or 8 qts oil. What happend when you added
> fuel,How far foward did cg go with 1/4, 1/2, 3/4, full tanks.Do
you
> have manual trim or electric, lights, antenna, in your ships emp?
> When you built your emp did you do epoxy primer with wet set
rivits?
> Did you cut the lighting holes,the new elevator horns have holes
did
> you upgrade? I see a lot of opinions and arguing of late a
little
> clarity from flying members will go a long way to put things
right.
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
balances
> perfectly at 79.33" EWCG and 1117 lbs EW.
> >
> > Roberta
> > ----- Original Message -----
> > From: Walter Tondu
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 4:27 PM
> > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > On 10/08 9:06, Rich wrote:
> >
> > > Jose,
> > > Another thing I thought of in defense of Van's here:
> > > The RV-6 (precurser to RV-7) was designed back when we had
> engines
> > > with heavy starters, heavy generators, heavy batteries,
plus
> that CS
> > > prop all up front FWF. Now how many of us are still using
> those
> > > components today ?! Maybe they just couldn't move the wing
in
> the 7
> > > without incurring a huge cost overrun or major redesign of
the
> whole
> > > plane. I don't know exactly what they did going from the 6
to
> the 7
> > > so maybe someone else has a comment on that.
> >
> > I believe that this CG thread applies to 7's and not so
> > much for 7A's? That nose gear adds forward cg weight via
the
> > engine mount modifications, nose gear leg, nose wheel and
main
> gear
> > weldment which is just infront of the spar.
> >
> > Anybody have CG issues with an A model?
> > --
> > Walter Tondu
> > http://www.rv7-a.com
> > Van's Air Force - World Wide Wing
> > www.vansaircraft.net
> > Yahoo! Groups Sponsor
> > ADVERTISEMENT
> > ---------------------------------------------------------------
----
> -----------
> > Yahoo! Groups Links
> >
> > a.. To visit your group on the web, go to:
> > http://groups.yahoo.com/group/RV7and7A/
> >
> > b.. To unsubscribe from this group, send an email to:
> > RV7and7A-unsubscribe@yahoogroups.com
> >
> > c.. Your use of Yahoo! Groups is subject to the Yahoo!
Terms
> of Service.
> > [Non-text portions of this message have been removed]
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/RV7and7A/
>
> b.. To unsubscribe from this group, send an email to:
> RV7and7A-unsubscribe@yahoogroups.com
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Sun Oct 10, 2004 4:54 am PDT Link
You lose. 1117Lbs.
Roberta
----- Original Message -----
From: Cary Rhodes
To: RV7and7A@yahoogroups.com
Sent: Saturday, October 09, 2004 8:53 PM
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Roberta
What is ur empty weight with the CS prop setup.
I'm betting 1080
Mine is 1053 with a wood prop and I could use a little up-front
weight.
my cg is pretty far aft.
cary rhodes
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> 8 qts. oil, no fuel, manual trim, system 6 lights, two Duckworks
landing lights, shark fin xponder, bent whip comm both mounted aft
of rear baggage bulkhead, no antennas in tail. I did not primer
anything internally in the tail that was Alclad and used zinc
chromate on bar non alclad parts (rattle can). I did a QB kit and
did not add any internal primer to the wings or fuselage. Exterior
of plane was epoxy primered (E-420 white) and painted in Aerothane.
ELT 450 mounted just aft of rear elevator belcrank.Strobe power unit
mounted on right flap cover in baggage compt. Full steam gage panel
with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24
circuit breakers, interior fully upholstered and carpeted and sound
proofed (I have a tipup canopy). PC680 battery mounted per Van's on
lower right side of FW. Everything else is pretty much Van's
standard using
> 0-360 A1A Lycoming
> Hartzell BA C/S prop (74")
> McCauley Gov.
> carb heat muff
> Cabin heat muff
> Vans FWF kit for 0-360 engines
>
> I am within the balance envelope by at least 1" using every
possible loading configuration up to 1800 lbs gross. I ran numbers
for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two 250
lb people and no baggage (fuel and no fuel) and still stayed in
balance.
>
> For those getting ready to calculate or plan, fuel loads cause
only very slight changes in CG. Passengers and baggage cause more
shift in CG.
>
> Hope this helps,
>
> Roberta
>
> Flying and Lovin' It!!!
> ----- Original Message -----
> From: Bob
> To: RV7and7A@yahoogroups.com
> Sent: Friday, October 08, 2004 8:37 PM
> Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> Roberta : Thank you, hard numbers from finished ships are tough
to
> come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
EW,
> are you including 6 or 8 qts oil. What happend when you added
> fuel,How far foward did cg go with 1/4, 1/2, 3/4, full tanks.Do
you
> have manual trim or electric, lights, antenna, in your ships emp?
> When you built your emp did you do epoxy primer with wet set
rivits?
> Did you cut the lighting holes,the new elevator horns have holes
did
> you upgrade? I see a lot of opinions and arguing of late a
little
> clarity from flying members will go a long way to put things
right.
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
balances
> perfectly at 79.33" EWCG and 1117 lbs EW.
> >
> > Roberta
> > ----- Original Message -----
> > From: Walter Tondu
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 4:27 PM
> > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > On 10/08 9:06, Rich wrote:
> >
> > > Jose,
> > > Another thing I thought of in defense of Van's here:
> > > The RV-6 (precurser to RV-7) was designed back when we had
> engines
> > > with heavy starters, heavy generators, heavy batteries,
plus
> that CS
> > > prop all up front FWF. Now how many of us are still using
> those
> > > components today ?! Maybe they just couldn't move the wing
in
> the 7
> > > without incurring a huge cost overrun or major redesign of
the
> whole
> > > plane. I don't know exactly what they did going from the 6
to
> the 7
> > > so maybe someone else has a comment on that.
> >
> > I believe that this CG thread applies to 7's and not so
> > much for 7A's? That nose gear adds forward cg weight via
the
> > engine mount modifications, nose gear leg, nose wheel and
main
> gear
> > weldment which is just infront of the spar.
> >
> > Anybody have CG issues with an A model?
> > --
> > Walter Tondu
> > http://www.rv7-a.com
> > Van's Air Force - World Wide Wing
> > www.vansaircraft.net
> > Yahoo! Groups Sponsor
> > ADVERTISEMENT
> > ---------------------------------------------------------------
----
> -----------
> > Yahoo! Groups Links
> >
> > a.. To visit your group on the web, go to:
> > http://groups.yahoo.com/group/RV7and7A/
> >
> > b.. To unsubscribe from this group, send an email to:
> > RV7and7A-unsubscribe@yahoogroups.com
> >
> > c.. Your use of Yahoo! Groups is subject to the Yahoo!
Terms
> of Service.
> > [Non-text portions of this message have been removed]
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/RV7and7A/
>
> b.. To unsubscribe from this group, send an email to:
> RV7and7A-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
> [Non-text portions of this message have been removed]
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www.vansaircraft.net
Yahoo! Groups Sponsor
ADVERTISEMENT
------------------------------------------------------------------------------
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<*> To visit your group on the web, go to:
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Author: "Kyle Boatright" <kboatright1@...> Time: Sun Oct 10, 2004 5:56 am PDT Link
Cary,
Where is your ELT? Do you carry a small toolbox when you fly? My airplane is designed so the ELT and my fly-away tool kit both mount in the front floorboards as far forward as possible. Probably only 5-8 pounds of stuff, but it is a real advantage CG wise to have it up front versus in the baggage compartment or thereabouts.
Kyle
----- Original Message -----
From: Cary Rhodes
To: RV7and7A@yahoogroups.com
Sent: Saturday, October 09, 2004 9:53 PM
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Roberta
What is ur empty weight with the CS prop setup.
I'm betting 1080
Mine is 1053 with a wood prop and I could use a little up-front
weight.
my cg is pretty far aft.
cary rhodes
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> 8 qts. oil, no fuel, manual trim, system 6 lights, two Duckworks
landing lights, shark fin xponder, bent whip comm both mounted aft
of rear baggage bulkhead, no antennas in tail. I did not primer
anything internally in the tail that was Alclad and used zinc
chromate on bar non alclad parts (rattle can). I did a QB kit and
did not add any internal primer to the wings or fuselage. Exterior
of plane was epoxy primered (E-420 white) and painted in Aerothane.
ELT 450 mounted just aft of rear elevator belcrank.Strobe power unit
mounted on right flap cover in baggage compt. Full steam gage panel
with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24
circuit breakers, interior fully upholstered and carpeted and sound
proofed (I have a tipup canopy). PC680 battery mounted per Van's on
lower right side of FW. Everything else is pretty much Van's
standard using
> 0-360 A1A Lycoming
> Hartzell BA C/S prop (74")
> McCauley Gov.
> carb heat muff
> Cabin heat muff
> Vans FWF kit for 0-360 engines
>
> I am within the balance envelope by at least 1" using every
possible loading configuration up to 1800 lbs gross. I ran numbers
for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two 250
lb people and no baggage (fuel and no fuel) and still stayed in
balance.
>
> For those getting ready to calculate or plan, fuel loads cause
only very slight changes in CG. Passengers and baggage cause more
shift in CG.
>
> Hope this helps,
>
> Roberta
>
> Flying and Lovin' It!!!
> ----- Original Message -----
> From: Bob
> To: RV7and7A@yahoogroups.com
> Sent: Friday, October 08, 2004 8:37 PM
> Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> Roberta : Thank you, hard numbers from finished ships are tough
to
> come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
EW,
> are you including 6 or 8 qts oil. What happend when you added
> fuel,How far foward did cg go with 1/4, 1/2, 3/4, full tanks.Do
you
> have manual trim or electric, lights, antenna, in your ships emp?
> When you built your emp did you do epoxy primer with wet set
rivits?
> Did you cut the lighting holes,the new elevator horns have holes
did
> you upgrade? I see a lot of opinions and arguing of late a
little
> clarity from flying members will go a long way to put things
right.
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
balances
> perfectly at 79.33" EWCG and 1117 lbs EW.
> >
> > Roberta
> > ----- Original Message -----
> > From: Walter Tondu
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 4:27 PM
> > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > On 10/08 9:06, Rich wrote:
> >
> > > Jose,
> > > Another thing I thought of in defense of Van's here:
> > > The RV-6 (precurser to RV-7) was designed back when we had
> engines
> > > with heavy starters, heavy generators, heavy batteries,
plus
> that CS
> > > prop all up front FWF. Now how many of us are still using
> those
> > > components today ?! Maybe they just couldn't move the wing
in
> the 7
> > > without incurring a huge cost overrun or major redesign of
the
> whole
> > > plane. I don't know exactly what they did going from the 6
to
> the 7
> > > so maybe someone else has a comment on that.
> >
> > I believe that this CG thread applies to 7's and not so
> > much for 7A's? That nose gear adds forward cg weight via
the
> > engine mount modifications, nose gear leg, nose wheel and
main
> gear
> > weldment which is just infront of the spar.
> >
> > Anybody have CG issues with an A model?
> > --
> > Walter Tondu
> > http://www.rv7-a.com
> > Van's Air Force - World Wide Wing
> > www.vansaircraft.net
> > Yahoo! Groups Sponsor
> > ADVERTISEMENT
> > ---------------------------------------------------------------
----
> -----------
> > Yahoo! Groups Links
> >
> > a.. To visit your group on the web, go to:
> > http://groups.yahoo.com/group/RV7and7A/
> >
> > b.. To unsubscribe from this group, send an email to:
> > RV7and7A-unsubscribe@yahoogroups.com
> >
> > c.. Your use of Yahoo! Groups is subject to the Yahoo!
Terms
> of Service.
> > [Non-text portions of this message have been removed]
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/RV7and7A/
>
> b.. To unsubscribe from this group, send an email to:
> RV7and7A-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
> [Non-text portions of this message have been removed]
Van's Air Force - World Wide Wing
www.vansaircraft.net
Yahoo! Groups Sponsor
ADVERTISEMENT
------------------------------------------------------------------------------
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a.. To visit your group on the web, go to:
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<*> To visit your group on the web, go to:
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Author: "Bob" <nutjob911@...> Time: Sun Oct 10, 2004 11:08 am PDT Link
Cary: Are you a RV-7 or 7a, EW1053 is that with 8qts oil,how much
primer did you put in the tail,Old rudder or 9,
lights,antennas,electric or manual trim ,do you have steps ,wood
prop what spacer did you use, what dose it weigh ,0-360 or 0-
320 ,how much weight can you carry in the baggage area?How is the
weight distributed aft of the spar,boxes,radios,golf clubs,etc. I
know I am being a pain in the bum with all this but I think it will
help us all figure out where the sweet spot is cg wise and far as
configuration what works best. Thank You Roberta and others for
responding.
Bob Hill
RV-7a EMP,Wings done
- In RV7and7A@yahoogroups.com, "Cary Rhodes" <rhodeseng@y...> wrote:
> Roberta
>
> What is ur empty weight with the CS prop setup.
> I'm betting 1080
> Mine is 1053 with a wood prop and I could use a little up-front
> weight.
>
> my cg is pretty far aft.
>
> cary rhodes
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > 8 qts. oil, no fuel, manual trim, system 6 lights, two Duckworks
> landing lights, shark fin xponder, bent whip comm both mounted aft
> of rear baggage bulkhead, no antennas in tail. I did not primer
> anything internally in the tail that was Alclad and used zinc
> chromate on bar non alclad parts (rattle can). I did a QB kit and
> did not add any internal primer to the wings or fuselage. Exterior
> of plane was epoxy primered (E-420 white) and painted in
Aerothane.
> ELT 450 mounted just aft of rear elevator belcrank.Strobe power
unit
> mounted on right flap cover in baggage compt. Full steam gage
panel
> with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24
> circuit breakers, interior fully upholstered and carpeted and
sound
> proofed (I have a tipup canopy). PC680 battery mounted per Van's
on
> lower right side of FW. Everything else is pretty much Van's
> standard using
> > 0-360 A1A Lycoming
> > Hartzell BA C/S prop (74")
> > McCauley Gov.
> > carb heat muff
> > Cabin heat muff
> > Vans FWF kit for 0-360 engines
> >
> > I am within the balance envelope by at least 1" using every
> possible loading configuration up to 1800 lbs gross. I ran numbers
> for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two
250
> lb people and no baggage (fuel and no fuel) and still stayed in
> balance.
> >
> > For those getting ready to calculate or plan, fuel loads cause
> only very slight changes in CG. Passengers and baggage cause more
> shift in CG.
> >
> > Hope this helps,
> >
> > Roberta
> >
> > Flying and Lovin' It!!!
> > ----- Original Message -----
> > From: Bob
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 8:37 PM
> > Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > Roberta : Thank you, hard numbers from finished ships are
tough
> to
> > come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
> EW,
> > are you including 6 or 8 qts oil. What happend when you added
> > fuel,How far foward did cg go with 1/4, 1/2, 3/4, full
tanks.Do
> you
> > have manual trim or electric, lights, antenna, in your ships
emp?
> > When you built your emp did you do epoxy primer with wet set
> rivits?
> > Did you cut the lighting holes,the new elevator horns have
holes
> did
> > you upgrade? I see a lot of opinions and arguing of late a
> little
> > clarity from flying members will go a long way to put things
> right.
> > --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> > <rhegy@w...> wrote:
> > >
> > > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
> balances
> > perfectly at 79.33" EWCG and 1117 lbs EW.
> > >
> > > Roberta
> > > ----- Original Message -----
> > > From: Walter Tondu
> > > To: RV7and7A@yahoogroups.com
> > > Sent: Friday, October 08, 2004 4:27 PM
> > > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > > On 10/08 9:06, Rich wrote:
> > >
> > > > Jose,
> > > > Another thing I thought of in defense of Van's here:
> > > > The RV-6 (precurser to RV-7) was designed back when we
had
> > engines
> > > > with heavy starters, heavy generators, heavy batteries,
> plus
> > that CS
> > > > prop all up front FWF. Now how many of us are still
using
> > those
> > > > components today ?! Maybe they just couldn't move the
wing
> in
> > the 7
> > > > without incurring a huge cost overrun or major redesign
of
> the
> > whole
> > > > plane. I don't know exactly what they did going from the
6
> to
> > the 7
> > > > so maybe someone else has a comment on that.
> > >
> > > I believe that this CG thread applies to 7's and not so
> > > much for 7A's? That nose gear adds forward cg weight via
> the
> > > engine mount modifications, nose gear leg, nose wheel and
> main
> > gear
> > > weldment which is just infront of the spar.
> > >
> > > Anybody have CG issues with an A model?
> > > --
> > > Walter Tondu
> > > http://www.rv7-a.com
> > > Van's Air Force - World Wide Wing
> > > www.vansaircraft.net
> > > Yahoo! Groups Sponsor
> > > ADVERTISEMENT
> > > -------------------------------------------------------------
--
> ----
> > -----------
> > > Yahoo! Groups Links
> > >
> > > a.. To visit your group on the web, go to:
> > > http://groups.yahoo.com/group/RV7and7A/
> > >
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Author: "Cary Rhodes" <rhodeseng@...> Time: Mon Oct 11, 2004 5:58 am PDT Link
Hey Kyle
Yep I am guilty of a ELT and the strobe power supply in or around the
baggage areas.
I worked on the project for over 2 years straight. Now that its
flying, I have little desire to remodel.
I just decided to travel light UNTIL whenever.
cary
--- In RV7and7A@yahoogroups.com, "Kyle Boatright" <kboatright1@c...>
wrote:
>
> Cary,
>
> Where is your ELT? Do you carry a small toolbox when you fly? My
airplane is designed so the ELT and my fly-away tool kit both mount
in the front floorboards as far forward as possible. Probably only 5-
8 pounds of stuff, but it is a real advantage CG wise to have it up
front versus in the baggage compartment or thereabouts.
>
> Kyle
> ----- Original Message -----
> From: Cary Rhodes
> To: RV7and7A@yahoogroups.com
> Sent: Saturday, October 09, 2004 9:53 PM
> Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> Roberta
>
> What is ur empty weight with the CS prop setup.
> I'm betting 1080
> Mine is 1053 with a wood prop and I could use a little up-front
> weight.
>
> my cg is pretty far aft.
>
> cary rhodes
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > 8 qts. oil, no fuel, manual trim, system 6 lights, two
Duckworks
> landing lights, shark fin xponder, bent whip comm both mounted
aft
> of rear baggage bulkhead, no antennas in tail. I did not primer
> anything internally in the tail that was Alclad and used zinc
> chromate on bar non alclad parts (rattle can). I did a QB kit and
> did not add any internal primer to the wings or fuselage.
Exterior
> of plane was epoxy primered (E-420 white) and painted in
Aerothane.
> ELT 450 mounted just aft of rear elevator belcrank.Strobe power
unit
> mounted on right flap cover in baggage compt. Full steam gage
panel
> with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24
> circuit breakers, interior fully upholstered and carpeted and
sound
> proofed (I have a tipup canopy). PC680 battery mounted per Van's
on
> lower right side of FW. Everything else is pretty much Van's
> standard using
> > 0-360 A1A Lycoming
> > Hartzell BA C/S prop (74")
> > McCauley Gov.
> > carb heat muff
> > Cabin heat muff
> > Vans FWF kit for 0-360 engines
> >
> > I am within the balance envelope by at least 1" using every
> possible loading configuration up to 1800 lbs gross. I ran
numbers
> for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two
250
> lb people and no baggage (fuel and no fuel) and still stayed in
> balance.
> >
> > For those getting ready to calculate or plan, fuel loads cause
> only very slight changes in CG. Passengers and baggage cause more
> shift in CG.
> >
> > Hope this helps,
> >
> > Roberta
> >
> > Flying and Lovin' It!!!
> > ----- Original Message -----
> > From: Bob
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 8:37 PM
> > Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > Roberta : Thank you, hard numbers from finished ships are
tough
> to
> > come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
> EW,
> > are you including 6 or 8 qts oil. What happend when you added
> > fuel,How far foward did cg go with 1/4, 1/2, 3/4, full
tanks.Do
> you
> > have manual trim or electric, lights, antenna, in your ships
emp?
> > When you built your emp did you do epoxy primer with wet set
> rivits?
> > Did you cut the lighting holes,the new elevator horns have
holes
> did
> > you upgrade? I see a lot of opinions and arguing of late a
> little
> > clarity from flying members will go a long way to put things
> right.
> > --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> > <rhegy@w...> wrote:
> > >
> > > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
> balances
> > perfectly at 79.33" EWCG and 1117 lbs EW.
> > >
> > > Roberta
> > > ----- Original Message -----
> > > From: Walter Tondu
> > > To: RV7and7A@yahoogroups.com
> > > Sent: Friday, October 08, 2004 4:27 PM
> > > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was
Apology)
> > > On 10/08 9:06, Rich wrote:
> > >
> > > > Jose,
> > > > Another thing I thought of in defense of Van's here:
> > > > The RV-6 (precurser to RV-7) was designed back when we
had
> > engines
> > > > with heavy starters, heavy generators, heavy batteries,
> plus
> > that CS
> > > > prop all up front FWF. Now how many of us are still
using
> > those
> > > > components today ?! Maybe they just couldn't move the
wing
> in
> > the 7
> > > > without incurring a huge cost overrun or major redesign
of
> the
> > whole
> > > > plane. I don't know exactly what they did going from
the 6
> to
> > the 7
> > > > so maybe someone else has a comment on that.
> > >
> > > I believe that this CG thread applies to 7's and not so
> > > much for 7A's? That nose gear adds forward cg weight
via
> the
> > > engine mount modifications, nose gear leg, nose wheel and
> main
> > gear
> > > weldment which is just infront of the spar.
> > >
> > > Anybody have CG issues with an A model?
> > > --
> > > Walter Tondu
> > > http://www.rv7-a.com
> > > Van's Air Force - World Wide Wing
> > > www.vansaircraft.net
> > > Yahoo! Groups Sponsor
> > > ADVERTISEMENT
> > > ------------------------------------------------------------
---
> ----
> > -----------
> > > Yahoo! Groups Links
> > >
> > > a.. To visit your group on the web, go to:
> > > http://groups.yahoo.com/group/RV7and7A/
> > >
> > > b.. To unsubscribe from this group, send an email to:
> > > RV7and7A-unsubscribe@yahoogroups.com
> > >
> > > c.. Your use of Yahoo! Groups is subject to the Yahoo!
> Terms
> > of Service.
> > > [Non-text portions of this message have been removed]
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> > www.vansaircraft.net
> > Yahoo! Groups Sponsor
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> > ----------------------------------------------------------------
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> -----------
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> >
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> of Service.
> > [Non-text portions of this message have been removed]
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> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> --------------------------------------------------------------------
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Author: "Cary Rhodes" <rhodeseng@...> Time: Mon Oct 11, 2004 5:59 am PDT Link
good morning Roberta
I was going to guess 1100, but I sure didn't want to go over.
with a grin
cary rhodes
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> You lose. 1117Lbs.
>
> Roberta
> ----- Original Message -----
> From: Cary Rhodes
> To: RV7and7A@yahoogroups.com
> Sent: Saturday, October 09, 2004 8:53 PM
> Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> Roberta
>
> What is ur empty weight with the CS prop setup.
> I'm betting 1080
> Mine is 1053 with a wood prop and I could use a little up-front
> weight.
>
> my cg is pretty far aft.
>
> cary rhodes
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > 8 qts. oil, no fuel, manual trim, system 6 lights, two
Duckworks
> landing lights, shark fin xponder, bent whip comm both mounted
aft
> of rear baggage bulkhead, no antennas in tail. I did not primer
> anything internally in the tail that was Alclad and used zinc
> chromate on bar non alclad parts (rattle can). I did a QB kit and
> did not add any internal primer to the wings or fuselage.
Exterior
> of plane was epoxy primered (E-420 white) and painted in
Aerothane.
> ELT 450 mounted just aft of rear elevator belcrank.Strobe power
unit
> mounted on right flap cover in baggage compt. Full steam gage
panel
> with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24
> circuit breakers, interior fully upholstered and carpeted and
sound
> proofed (I have a tipup canopy). PC680 battery mounted per Van's
on
> lower right side of FW. Everything else is pretty much Van's
> standard using
> > 0-360 A1A Lycoming
> > Hartzell BA C/S prop (74")
> > McCauley Gov.
> > carb heat muff
> > Cabin heat muff
> > Vans FWF kit for 0-360 engines
> >
> > I am within the balance envelope by at least 1" using every
> possible loading configuration up to 1800 lbs gross. I ran
numbers
> for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two
250
> lb people and no baggage (fuel and no fuel) and still stayed in
> balance.
> >
> > For those getting ready to calculate or plan, fuel loads cause
> only very slight changes in CG. Passengers and baggage cause more
> shift in CG.
> >
> > Hope this helps,
> >
> > Roberta
> >
> > Flying and Lovin' It!!!
> > ----- Original Message -----
> > From: Bob
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 8:37 PM
> > Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > Roberta : Thank you, hard numbers from finished ships are
tough
> to
> > come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
> EW,
> > are you including 6 or 8 qts oil. What happend when you added
> > fuel,How far foward did cg go with 1/4, 1/2, 3/4, full
tanks.Do
> you
> > have manual trim or electric, lights, antenna, in your ships
emp?
> > When you built your emp did you do epoxy primer with wet set
> rivits?
> > Did you cut the lighting holes,the new elevator horns have
holes
> did
> > you upgrade? I see a lot of opinions and arguing of late a
> little
> > clarity from flying members will go a long way to put things
> right.
> > --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> > <rhegy@w...> wrote:
> > >
> > > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
> balances
> > perfectly at 79.33" EWCG and 1117 lbs EW.
> > >
> > > Roberta
> > > ----- Original Message -----
> > > From: Walter Tondu
> > > To: RV7and7A@yahoogroups.com
> > > Sent: Friday, October 08, 2004 4:27 PM
> > > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was
Apology)
> > > On 10/08 9:06, Rich wrote:
> > >
> > > > Jose,
> > > > Another thing I thought of in defense of Van's here:
> > > > The RV-6 (precurser to RV-7) was designed back when we
had
> > engines
> > > > with heavy starters, heavy generators, heavy batteries,
> plus
> > that CS
> > > > prop all up front FWF. Now how many of us are still
using
> > those
> > > > components today ?! Maybe they just couldn't move the
wing
> in
> > the 7
> > > > without incurring a huge cost overrun or major redesign
of
> the
> > whole
> > > > plane. I don't know exactly what they did going from
the 6
> to
> > the 7
> > > > so maybe someone else has a comment on that.
> > >
> > > I believe that this CG thread applies to 7's and not so
> > > much for 7A's? That nose gear adds forward cg weight
via
> the
> > > engine mount modifications, nose gear leg, nose wheel and
> main
> > gear
> > > weldment which is just infront of the spar.
> > >
> > > Anybody have CG issues with an A model?
> > > --
> > > Walter Tondu
> > > http://www.rv7-a.com
> > > Van's Air Force - World Wide Wing
> > > www.vansaircraft.net
> > > Yahoo! Groups Sponsor
> > > ADVERTISEMENT
> > > ------------------------------------------------------------
---
> ----
> > -----------
> > > Yahoo! Groups Links
> > >
> > > a.. To visit your group on the web, go to:
> > > http://groups.yahoo.com/group/RV7and7A/
> > >
> > > b.. To unsubscribe from this group, send an email to:
> > > RV7and7A-unsubscribe@yahoogroups.com
> > >
> > > c.. Your use of Yahoo! Groups is subject to the Yahoo!
> Terms
> > of Service.
> > > [Non-text portions of this message have been removed]
> > Van's Air Force - World Wide Wing
> > www.vansaircraft.net
> > Yahoo! Groups Sponsor
> > ADVERTISEMENT
> > ----------------------------------------------------------------
---
> -----------
> > Yahoo! Groups Links
> >
> > a.. To visit your group on the web, go to:
> > http://groups.yahoo.com/group/RV7and7A/
> >
> > b.. To unsubscribe from this group, send an email to:
> > RV7and7A-unsubscribe@yahoogroups.com
> >
> > c.. Your use of Yahoo! Groups is subject to the Yahoo!
Terms
> of Service.
> > [Non-text portions of this message have been removed]
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> --------------------------------------------------------------------
----------
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>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/RV7and7A/
>
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Yahoo! Groups Links
<*> To visit your group on the web, go to:
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Author: "Burton Loewen" <karenandburtloewen@...> Time: Mon Oct 11, 2004 7:44 am PDT Link
for those of use who are economically minded, Van,s has a special engine
mount for the 0-320 which places the engine a few inches forward. Of course
this then means the cowl that matches is somewhat longer, but Van,s will
then supply the cowl origonally designed for the RV-9. We have gone this
route and all other parts seem to work out well with minor mods., including
the baffles.
While we have not done our own CG testing yet, Van,s assure us that even
with a light compposite prop, 3 blade in our case, we should not have CG
issues to deal with.
Burt
-----Original Message-----
From: Rich [mailto:easylivin_ak@yahoo.com]
Sent: October 8, 2004 12:57 PM
To: RV7and7A@yahoogroups.com
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
Jose, From what I am reading here in this group they are not nose
heavy but instead tail heavy. I think Van's just assumed that most
people will want the CS prop which seems to help a lot. That makes
it hard for those of us who like fixed pitch, but not undoable. You
just need to keep as much weight forward as possible when building.
Hope I am reading people correctly on all this because it is just
what I have gathered from the postings I have read. Please correct
me if I am wrong.
Rich
--- In RV7and7A@yahoogroups.com, "pepeborja925mb"
<pepeborja925mb@y...> wrote:
> Why are RV7 airplanes coming too nose heavy? Is it just a poor
> design from Van's part or was the concept of "inexpensive, light,
> fast and responsive" out the door and the plane designed for
> expensive prop set-ups?
>
> What can I do to avoid that mess? I'm trying to stay true to
Van's
> concept of "inexpensive, fast, light, and responsive". Me thinks
> adding 26 pounds of dead weight is counter to that premise.
>
> Jose Borja
> Elk Mound, WI.
Van's Air Force - World Wide Wing
www.vansaircraft.net
Yahoo! Groups Sponsor
ADVERTISEMENT
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<*> To visit your group on the web, go to:
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Mon Oct 11, 2004 3:27 pm PDT Link
Never want to tell a lady she's heavier than she really is.
You're a real gentleman, Cary.
Roberta
----- Original Message -----
From: Cary Rhodes
To: RV7and7A@yahoogroups.com
Sent: Monday, October 11, 2004 7:21 AM
Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
good morning Roberta
I was going to guess 1100, but I sure didn't want to go over.
with a grin
cary rhodes
--- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
<rhegy@w...> wrote:
>
> You lose. 1117Lbs.
>
> Roberta
> ----- Original Message -----
> From: Cary Rhodes
> To: RV7and7A@yahoogroups.com
> Sent: Saturday, October 09, 2004 8:53 PM
> Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> Roberta
>
> What is ur empty weight with the CS prop setup.
> I'm betting 1080
> Mine is 1053 with a wood prop and I could use a little up-front
> weight.
>
> my cg is pretty far aft.
>
> cary rhodes
> --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> <rhegy@w...> wrote:
> >
> > 8 qts. oil, no fuel, manual trim, system 6 lights, two
Duckworks
> landing lights, shark fin xponder, bent whip comm both mounted
aft
> of rear baggage bulkhead, no antennas in tail. I did not primer
> anything internally in the tail that was Alclad and used zinc
> chromate on bar non alclad parts (rattle can). I did a QB kit and
> did not add any internal primer to the wings or fuselage.
Exterior
> of plane was epoxy primered (E-420 white) and painted in
Aerothane.
> ELT 450 mounted just aft of rear elevator belcrank.Strobe power
unit
> mounted on right flap cover in baggage compt. Full steam gage
panel
> with KMD150, SL40, SL70, PM3000, full gages using Vans and EI, 24
> circuit breakers, interior fully upholstered and carpeted and
sound
> proofed (I have a tipup canopy). PC680 battery mounted per Van's
on
> lower right side of FW. Everything else is pretty much Van's
> standard using
> > 0-360 A1A Lycoming
> > Hartzell BA C/S prop (74")
> > McCauley Gov.
> > carb heat muff
> > Cabin heat muff
> > Vans FWF kit for 0-360 engines
> >
> > I am within the balance envelope by at least 1" using every
> possible loading configuration up to 1800 lbs gross. I ran
numbers
> for 120 lb. pilot and 100 lbs baggage (fuel and no fuel) to two
250
> lb people and no baggage (fuel and no fuel) and still stayed in
> balance.
> >
> > For those getting ready to calculate or plan, fuel loads cause
> only very slight changes in CG. Passengers and baggage cause more
> shift in CG.
> >
> > Hope this helps,
> >
> > Roberta
> >
> > Flying and Lovin' It!!!
> > ----- Original Message -----
> > From: Bob
> > To: RV7and7A@yahoogroups.com
> > Sent: Friday, October 08, 2004 8:37 PM
> > Subject: [RV7Yahoo] Re: Heavy Prop Spacer (was Apology)
> > Roberta : Thank you, hard numbers from finished ships are
tough
> to
> > come by here in this group. 7a, 0-360, c/s Hartzell , 1117lbs
> EW,
> > are you including 6 or 8 qts oil. What happend when you added
> > fuel,How far foward did cg go with 1/4, 1/2, 3/4, full
tanks.Do
> you
> > have manual trim or electric, lights, antenna, in your ships
emp?
> > When you built your emp did you do epoxy primer with wet set
> rivits?
> > Did you cut the lighting holes,the new elevator horns have
holes
> did
> > you upgrade? I see a lot of opinions and arguing of late a
> little
> > clarity from flying members will go a long way to put things
> right.
> > --- In RV7and7A@yahoogroups.com, "Richard & Roberta Hegy"
> > <rhegy@w...> wrote:
> > >
> > > My 7A with 0-360 A1A, Hartzell prop, and steam gage panel
> balances
> > perfectly at 79.33" EWCG and 1117 lbs EW.
> > >
> > > Roberta
> > > ----- Original Message -----
> > > From: Walter Tondu
> > > To: RV7and7A@yahoogroups.com
> > > Sent: Friday, October 08, 2004 4:27 PM
> > > Subject: Re: [RV7Yahoo] Re: Heavy Prop Spacer (was
Apology)
> > > On 10/08 9:06, Rich wrote:
> > >
> > > > Jose,
> > > > Another thing I thought of in defense of Van's here:
> > > > The RV-6 (precurser to RV-7) was designed back when we
had
> > engines
> > > > with heavy starters, heavy generators, heavy batteries,
> plus
> > that CS
> > > > prop all up front FWF. Now how many of us are still
using
> > those
> > > > components today ?! Maybe they just couldn't move the
wing
> in
> > the 7
> > > > without incurring a huge cost overrun or major redesign
of
> the
> > whole
> > > > plane. I don't know exactly what they did going from
the 6
> to
> > the 7
> > > > so maybe someone else has a comment on that.
> > >
> > > I believe that this CG thread applies to 7's and not so
> > > much for 7A's? That nose gear adds forward cg weight
via
> the
> > > engine mount modifications, nose gear leg, nose wheel and
> main
> > gear
> > > weldment which is just infront of the spar.
> > >
> > > Anybody have CG issues with an A model?
> > > --
> > > Walter Tondu
> > > http://www.rv7-a.com
> > > Van's Air Force - World Wide Wing
> > > www.vansaircraft.net
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