REFLECTOR: Ailerons

[Lawrence Epstein,MD]

My recommendation is to scrap & rebuild. Weight is critical in the
Ailerons and filler/counterbalance will just bump it higher.
 
I had to rebuild my elevators (ended up buying a pair from the factory)
after I realized that the bench they were built on was warped! I tried
filling, but didn't like the added weight.
 
Larry Epstein
 
-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of cgputney at peoplepc.com
Sent: Monday, March 26, 2007 12:02 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Ailerons
 
Thank you Scott,   
Yes, all those things were addressed during the flight test period.   
None reduced the forces.   
Some current Velocities have a flat aileron underside, and manageable
forces.  
This is exactly what happened in the Seawind test program decades ago
The highly cambered airfoil used resulted in high roll forces.
So, the question remains, how do I best repair these ailerons?
Thanks again for your response.
----- Original Message ----- 
From: Scott Derrick <mailto:scott at tnstaafl.net>  
To: Velocity Aircraft <mailto:reflector at tvbf.org>  Owners and Builders
list 
Sent: Monday, March 26, 2007 10:25 AM
Subject: Re: REFLECTOR: Ailerons
 
Gordon,

Some of the items below may seem stupid but I'll list them anyway.

1.)  Ailerons are even when nuetral.

2.) When the ailerons are neutral, the center bellcrank is vertical

3.) almost no play between ailerons.

4.) at least standard up and down movement per plans.

5.) When ailerons are nuetral, plane on the ground, they both should be
up about 1/8 inch relative to the trailing edge of the wing. In flight
pressure will push them even with the trailing edge.

The ailerons will need progressively  more  lbs of input to  move them
as your speed  increases, this  is a  natural built in feedback system
that prevents you from over controlling. You should still be able to
easily roll the airplane to 60/90 degrees at any speed. 

Anybody done a test to see how much force is required to roll the
airplane at faster and faster speeds, using a fish scale or something?

Scott

cgputney at peoplepc.com wrote: 
My flight test program revealed "heavy ailerons".   Movable at pattern
speeds, but next to impossible at 140kts.   After exchanges with Danny
Maher, Scott Jones, Steve Murphree, and old Seawind newletters I decided
to fill the (per plans) concave undersides with Superfil and rebalance.
The  required nose weights reduced aileron travel below the 2.5" so I am
considering rebuilding them lighter.   Any recommendations out there?
Gordon Putney.





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