RE:  J3 Pup
part 103 ultralight at a price he couldn't pass up he bought it. The problem
is that when you raise the rear wheel the plane veers to the left hard

You won't have this problem with the KR.  You feel the P-factor when you
apply full power, a little.  It really does not change very much  when the
tail comes up.  All you have to do is keep the nose pointed at the end of
the runway.  LOL...


N64KR

Daniel R. Heath - Columbia, SC

da...@kr-builder.org

See you in Mt. Vernon - 2004 - KR Gathering

See our KR at http://KR-Builder.org - Click on the pic
See our EAA Chapter 242 at http://EAA242.org

-------Original Message-------

From: KR builders and pilots
List-Post: krnet@list.krnet.org
Date: Tuesday, October 14, 2003 12:56:05 PM
To: KR builders and pilots
Subject: Re: KR>Re: P-factor (not KR related)

Thanks Chris
I'll try to explain. My dad has started to be concerned that he will not
finish his KR2 before he loses his medical so when he came across a J3 Pup
part 103 ultralight at a price he couldn't pass up he bought it. The problem
is that when you raise the rear wheel the plane veers to the left hard
enough to cause several ground loops. We have gone over every imaginable
cause, alignment, trimtabs, C.O.G. even relocated the placement of the mains
acording to Tony Bs book. Still the same problem. So yesterday Dad measured
the thrust @ each main @ full power with the tail level. He found that there
was 30% more thrust @ the right main wheel. So my question is this about
normal and just a learning to fly this plane thing or should we start
looking @ adjusting the engine mount to compensate.
We have both flown tail dragers and neither of us have experianced this much
P factor effect. It did just occurr to me that this is also the lighest
Conventional gear we have flown. The Original builder says this is normal
and with time we should be able to"learn to fly it fine"I would rather fix
what i believe an obvious problem. Any coments would be apprecaited.
Thanks
Wayne
----- Original Message -----
From: <boeing757me...@aol.com>
To: <kr...@mylist.net>
Sent: Tuesday, October 14, 2003 2:13 AM
Subject: Re: KR>Re: P-factor


> So I'm not sure what you are asking.
>
>
> P-Factor is an aerodynamic effect that causes propellor-driven planes to
yaw




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