REFLECTOR: RE: FINALLY SOME TRUE DATA -- NOW WHAT

[Tom Martino]

But wouldn't it still require some left rudder to keep in straight down
the runway?  If the yaw was off?

 

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Alex Balic
Sent: Monday, May 16, 2005 6:35 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: REFLECTOR: RE: FINALLY SOME TRUE DATA -- NOW WHAT

 

Tom,

The plane tracks properly on the ground because it is on the ground, and
the wheels are causing it to track properly even at high speed- it would
seem that the winglets are a little bit off to me- probably both in the
same direction- this is what is causing you to fly crabbed- if the wings
were out of rig, then you would tend to roll- P factor wouldn't require
almost full rudder to correct in level flight.....

 

-----Original Message-----
From: Tom Martino [mailto:reflector-bounces at tvbf.org] On Behalf Of Tom
Martino
Sent: Monday, May 16, 2005 7:28 PM
To: reflector at www.tvbf.org
Subject: FINALLY SOME TRUE DATA -- NOW WHAT

 

Ok ... if I let my plane fly the way it wants, with wings level ... the
"ball" is way off to the left (on the ground it is neutral) and the left
wing wants to bank ... making a slight turn to the right.

 

To get the nose perfectly straight it requires a LOT of left rudder.
Then the plane flees without any turning or banking tendencies.

I don't think any vertical surfaces (winglets or rudders) are out of rig
because at high speed ground roll (landing and taking off) the plane
tracks perfectly.  It is only when lift is developed that the "ball out
of center" phenomenon starts.

 

The trim tab did not help much and was removed.

 

I believe I need to decrease the angle of attack on my left wing to
correct the problem.

 

When I checked incidence ... they were right on.

 

By the way ... does "P" factor cause some of this problem?  If the left
side of my prop (as viewed from behind) develop more thrust ... wouldn't
that cause the plane to fly off to the right?

 

I examined my engine mount and it is not canted to cancel out the "P"
factor.  

 

Any thoughts?

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