REFLECTOR: Thrustline change

Fri Mar 29 15:29:04 CDT 2013

David,

Think of it as reflexing your Canard. That is very efficient since you are removing lift and drag from the control surface. 

Richard

Sent from my iPhone 5

On Mar 29, 2013, at 1:29 PM, "David Ullman" <ullman at robustdecisions.com> wrote:

> When I cruise with only me in the SEFG I have to put in 1/2 inch of down
> trim (elevator up) or more.  This is clearly inefficient.  I already have
> 18lb of lead in the nose and don't want to add more.  A friend suggested
> shimming the top of the engine mount for a little downward pitch moment.  I
> sort of like the idea but am worried that it might increase my take off
> distance as it will drive the canard downward a little.  He thinks it may
> help as the engine thrust line is slight more upward.  
> 
> Any thoughts or experiences?
> 
> 
> David Ullman
> N444DX
> President EAA 292
> 541-760-2338
> david at davidullman.com
> 
> 
> 
> 
> 
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