Author: "Greg Larson" <hanzonn@...> Time: Mon Oct 11, 2004 3:05 am PDT Link
Thanks guys (& Roberta),
Yeah, now I definitely see the difference. A little work and they're
straight as an arrow and fit much better now.
Another quick question... the plans or manual doesn't call (as far as
I can tell) for a rivet on the aft flange of HS-404. Since the upper
& lower portions have been notched out to accomodate HS-710 & 714,
the only place for a rivet is the center. Is that correct - does the
aft flange just sit there without a rivet?
Thanks, Greg
--- In RV7and7A@yahoogroups.com, "Bill Swaim" <bill@m...> wrote:
>
> Yes fluting is required. As below, flanges need to be at 90 deg to
web,
> flute very lightly, using a hand seamer to gently squeeze if you go
too far.
> The idea here is to be able to lay a straight edge along the holes
& have
> them line up, as the skin holes they are attached to are lined up.
May not
> be so noticeable in some areas, but is a must do!
>
> Bill Swaim
> RV7 - Wings on 10/18
>
> -----Original Message-----
> From: LR Frey [mailto:lrogerfrey@y...]
> Sent: Saturday, October 09, 2004 6:34 PM
> To: RV7and7A@yahoogroups.com
> Subject: Re: [RV7Yahoo] Fluting Ribs
> Yea Greg, I think flutting is required. Pretty good and good are
two
> different things. Perfect is not required. The reference to the
diagrams
> is a hold over from when there were no prepunched holes, they were
trying to
> keep you from fluting where a hole would be drilled.... just flute
between
> the prepunched holes and you are good. Before fluting tho, be sure
your
> flanges are at 90 degree angles to the web, then flute to get the
ribs
> straight as they lay on the table. When you are done fluting, the
flanges
> will again be off the 90 degree angle, just readjust a few times
and all
> will be well. Takes practice. When I started it was a 30 minute
deal per
> rib, now I expect it would take 3 minutes tops. Of course I've been
working
> on this $&#*^ thing for three years. "I'm getin bet-r tho"
>
> Hope this helps, Larry
> Greg Larson <hanzonn@e...> wrote:
> Greetings,
>
> I think I'm missing something here. Pg. 6-2 of the manual talks
about
> fluting HS 404, 405, 706, & 707. It also refers to section 5N
(fluting),
> which states "fluting diagrams for the empennage, wing ribs and
bulkheads
> are shown on the plans where required." I can't find any diagrams
or notes
> showing which ribs are required to be fluted. I already clecoed
the left
> skin without fluting and it seems to fit pretty well, so is it
necessary or
> not?
>
> Thanks, Greg
> RV-7(A?)
> San Diego
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups SponsorADVERTISEMENT
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Author: "Richard & Roberta Hegy" <rhegy@...> Time: Mon Oct 11, 2004 2:56 pm PDT Link
Look carefully at section D-D and you will see the callout and location of the rivets. They are AN470AD4-5, all HS-404 to HS-702 to HS-405.
Its kinda hard to see.
Roberta
----- Original Message -----
From: Greg Larson
To: RV7and7A@yahoogroups.com
Sent: Sunday, October 10, 2004 11:28 PM
Subject: Re: [RV7Yahoo] Fluting Ribs (& new question)
Thanks guys (& Roberta),
Yeah, now I definitely see the difference. A little work and they're
straight as an arrow and fit much better now.
Another quick question... the plans or manual doesn't call (as far as
I can tell) for a rivet on the aft flange of HS-404. Since the upper
& lower portions have been notched out to accomodate HS-710 & 714,
the only place for a rivet is the center. Is that correct - does the
aft flange just sit there without a rivet?
Thanks, Greg
--- In RV7and7A@yahoogroups.com, "Bill Swaim" <bill@m...> wrote:
>
> Yes fluting is required. As below, flanges need to be at 90 deg to
web,
> flute very lightly, using a hand seamer to gently squeeze if you go
too far.
> The idea here is to be able to lay a straight edge along the holes
& have
> them line up, as the skin holes they are attached to are lined up.
May not
> be so noticeable in some areas, but is a must do!
>
> Bill Swaim
> RV7 - Wings on 10/18
>
> -----Original Message-----
> From: LR Frey [mailto:lrogerfrey@y...]
> Sent: Saturday, October 09, 2004 6:34 PM
> To: RV7and7A@yahoogroups.com
> Subject: Re: [RV7Yahoo] Fluting Ribs
> Yea Greg, I think flutting is required. Pretty good and good are
two
> different things. Perfect is not required. The reference to the
diagrams
> is a hold over from when there were no prepunched holes, they were
trying to
> keep you from fluting where a hole would be drilled.... just flute
between
> the prepunched holes and you are good. Before fluting tho, be sure
your
> flanges are at 90 degree angles to the web, then flute to get the
ribs
> straight as they lay on the table. When you are done fluting, the
flanges
> will again be off the 90 degree angle, just readjust a few times
and all
> will be well. Takes practice. When I started it was a 30 minute
deal per
> rib, now I expect it would take 3 minutes tops. Of course I've been
working
> on this $&#*^ thing for three years. "I'm getin bet-r tho"
>
> Hope this helps, Larry
> Greg Larson <hanzonn@e...> wrote:
> Greetings,
>
> I think I'm missing something here. Pg. 6-2 of the manual talks
about
> fluting HS 404, 405, 706, & 707. It also refers to section 5N
(fluting),
> which states "fluting diagrams for the empennage, wing ribs and
bulkheads
> are shown on the plans where required." I can't find any diagrams
or notes
> showing which ribs are required to be fluted. I already clecoed
the left
> skin without fluting and it seems to fit pretty well, so is it
necessary or
> not?
>
> Thanks, Greg
> RV-7(A?)
> San Diego
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups SponsorADVERTISEMENT
> ---------------------------------
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/RV7and7A/
>
> To unsubscribe from this group, send an email to:
> RV7and7A-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.
> ---------------------------------
> Do you Yahoo!?
> vote.yahoo.com - Register online to vote today!
>
> [Non-text portions of this message have been removed]
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Yahoo! Groups Links
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www.vansaircraft.net
Yahoo! Groups Sponsor
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Author: "n666ss" <cguerra1@...> Time: Mon Oct 18, 2004 6:11 pm PDT Link
Greg, You and i are working on the same passages of the manual, i did
go ahead and drill 2 holes on each flange of the 404 thru 702 onto
405. I went further and skinned both sides of the spars and ribs
without fluting to get the holes marked up correctly on the hs404 and
hs405 in its respective left/right postions, they fit just fine. I
will be fluting though. There's pix of this at my website
http://www.guerratech.com/rv7a/bigassets/1420big.htm
Cesar
--- In RV7and7A@yahoogroups.com, "Greg Larson" <hanzonn@e...> wrote:
> Thanks guys (& Roberta),
>
> Yeah, now I definitely see the difference. A little work and
they're
> straight as an arrow and fit much better now.
>
> Another quick question... the plans or manual doesn't call (as far
as
> I can tell) for a rivet on the aft flange of HS-404. Since the
upper
> & lower portions have been notched out to accomodate HS-710 & 714,
> the only place for a rivet is the center. Is that correct - does
the
> aft flange just sit there without a rivet?
>
> Thanks, Greg
>
> --- In RV7and7A@yahoogroups.com, "Bill Swaim" <bill@m...> wrote:
> >
> > Yes fluting is required. As below, flanges need to be at 90 deg
to
> web,
> > flute very lightly, using a hand seamer to gently squeeze if you
go
> too far.
> > The idea here is to be able to lay a straight edge along the
holes
> & have
> > them line up, as the skin holes they are attached to are lined
up.
> May not
> > be so noticeable in some areas, but is a must do!
> >
> > Bill Swaim
> > RV7 - Wings on 10/18
> >
> > -----Original Message-----
> > From: LR Frey [mailto:lrogerfrey@y...]
> > Sent: Saturday, October 09, 2004 6:34 PM
> > To: RV7and7A@yahoogroups.com
> > Subject: Re: [RV7Yahoo] Fluting Ribs
> > Yea Greg, I think flutting is required. Pretty good and good are
> two
> > different things. Perfect is not required. The reference to the
> diagrams
> > is a hold over from when there were no prepunched holes, they
were
> trying to
> > keep you from fluting where a hole would be drilled.... just
flute
> between
> > the prepunched holes and you are good. Before fluting tho, be
sure
> your
> > flanges are at 90 degree angles to the web, then flute to get the
> ribs
> > straight as they lay on the table. When you are done fluting, the
> flanges
> > will again be off the 90 degree angle, just readjust a few times
> and all
> > will be well. Takes practice. When I started it was a 30 minute
> deal per
> > rib, now I expect it would take 3 minutes tops. Of course I've
been
> working
> > on this $&#*^ thing for three years. "I'm getin bet-r tho"
> >
> > Hope this helps, Larry
> > Greg Larson <hanzonn@e...> wrote:
> > Greetings,
> >
> > I think I'm missing something here. Pg. 6-2 of the manual talks
> about
> > fluting HS 404, 405, 706, & 707. It also refers to section 5N
> (fluting),
> > which states "fluting diagrams for the empennage, wing ribs and
> bulkheads
> > are shown on the plans where required." I can't find any
diagrams
> or notes
> > showing which ribs are required to be fluted. I already clecoed
> the left
> > skin without fluting and it seems to fit pretty well, so is it
> necessary or
> > not?
> >
> > Thanks, Greg
> > RV-7(A?)
> > San Diego
> > Van's Air Force - World Wide Wing
> > www.vansaircraft.net
> > Yahoo! Groups SponsorADVERTISEMENT
> > ---------------------------------
> > Yahoo! Groups Links
> >
> > To visit your group on the web, go to:
> > http://groups.yahoo.com/group/RV7and7A/
> >
> > To unsubscribe from this group, send an email to:
> > RV7and7A-unsubscribe@yahoogroups.com
> >
> > Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> Service.
> > ---------------------------------
> > Do you Yahoo!?
> > vote.yahoo.com - Register online to vote today!
> >
> > [Non-text portions of this message have been removed]
> > Van's Air Force - World Wide Wing
> > www.vansaircraft.net
> > Yahoo! Groups Links
------------------------ Yahoo! Groups Sponsor --------------------~-->
Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar.
Now with Pop-Up Blocker. Get it for free!
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--------------------------------------------------------------------~-
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<*> To visit your group on the web, go to:
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