Author: "flyboy95603" <coyotes6@...> Time: Fri Apr 26, 2002 9:06 am PDT Link
I have an RV-6A and when I land and slow to between 40 and 30 I get a
shimmy in the front end, I've heard you can adjust something there to
fix this, I didn't build this plane and so I was wondering if anybody
can tell me how to do this.
Thanks,...Mike Brewton
coyotes6@p...
Author: "enewton57" <enewton57@...> Time: Fri Apr 26, 2002 1:14 pm PDT Link
Hi Mike,
Take off the nose wheel fairing and you will see the front
wheel "fork" that the nose wheel is mounted to. On the bottom of the
fork is a rather large nut with a cotter pin through it. This nut is
tightened down on two spring washers and create the drag necessary to
keep the nose wheel shimmy at bay.
To check for proper drag, you have to check the breakout force
required to turn the fork left or right. This is accomplished by
using a simple fishing scale and hooking it to the axle nut and
measuring the sidewise pull required to start pivoting the fork. I
did this with the tire removed and then put a tie wrap through the
axle hole in the fork. The fishing scale hook could then be hooked
through the tie wrap loop and the breakout force measured by pulling
straight out perpendicular to the fork.
If the breakout force is less that 23 lbs. you will need to take out
the cotter pin and tighten the large nut until the breakout force is
23 to 25 lbs.
The other factor is tire inflation. It should be around 28 lbs. You
can experiment with different tire pressures until you get little or
no shimmy.
Hope this helps some,
Eric Newton - Long Beach, MS
RV-6A - N57ME (Flying)
www.ericrv6a.com
--- In RV-6and6A@y..., "flyboy95603" <coyotes6@p...> wrote:
>
> I have an RV-6A and when I land and slow to between 40 and 30 I get
a
> shimmy in the front end, I've heard you can adjust something there
to
> fix this, I didn't build this plane and so I was wondering if
anybody
> can tell me how to do this.
>
> Thanks,...Mike Brewton
> coyotes6@p...
Author: Mike Brewton <coyotes6@...> Time: Fri Apr 26, 2002 2:28 pm PDT Link
Hi Eric
Thanks for the quick response to my problem, I have been at the airport all day and am headed back right now, I pulled the auto-pilot out to send back, a friend told me I could have screwed that up buy going upside down
----- Original Message -----
From: enewton57
To: RV-6and6A@yahoogroups.com
Sent: Friday, April 26, 2002 1:12 PM
Subject: [RV-6/6A] Re: Nose wheel shimmy
Hi Mike,
Take off the nose wheel fairing and you will see the front
wheel "fork" that the nose wheel is mounted to. On the bottom of the
fork is a rather large nut with a cotter pin through it. This nut is
tightened down on two spring washers and create the drag necessary to
keep the nose wheel shimmy at bay.
To check for proper drag, you have to check the breakout force
required to turn the fork left or right. This is accomplished by
using a simple fishing scale and hooking it to the axle nut and
measuring the sidewise pull required to start pivoting the fork. I
did this with the tire removed and then put a tie wrap through the
axle hole in the fork. The fishing scale hook could then be hooked
through the tie wrap loop and the breakout force measured by pulling
straight out perpendicular to the fork.
If the breakout force is less that 23 lbs. you will need to take out
the cotter pin and tighten the large nut until the breakout force is
23 to 25 lbs.
The other factor is tire inflation. It should be around 28 lbs. You
can experiment with different tire pressures until you get little or
no shimmy.
Hope this helps some,
Eric Newton - Long Beach, MS
RV-6A - N57ME (Flying)
www.ericrv6a.com
--- In RV-6and6A@y..., "flyboy95603" <coyotes6@p...> wrote:
>
> I have an RV-6A and when I land and slow to between 40 and 30 I get
a
> shimmy in the front end, I've heard you can adjust something there
to
> fix this, I didn't build this plane and so I was wondering if
anybody
> can tell me how to do this.
>
> Thanks,...Mike Brewton
> coyotes6@p...
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