REFLECTOR: Thrustline change

[velocityxl]

What is the thrust line supose to be any ways does any one have a angle number for the thrust line?




Sent from Samsung tablet not an Ipad  Ron

-------- Original message --------
From: David Ullman <ullman at robustdecisions.com> 
Date: 03/29/2013  12:29 PM  (GMT-06:00) 
To: reflector at tvbf.org 
Subject: REFLECTOR: Thrustline change 
 
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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