Quest trimming.

[randy10926 at comcast.net]

Agree.  It sounds like he needs more upthrust or less downthrust.

> Ref. The electric Quest. Can you check or remember if there is/was any up-trim 
> in the elevator.
> 
> It might well be the CG but I am leaning toward there may be too much 
> downthrust, or more likely a wrong thrustline height. The firewall has a 
> relationship with the engine bearers that needs to be mimicked. The center line 
> for thrust is about 1/4" above the top of the engine bearer. (When using the 
> bearers for an inverted engine.)
> 
> 
> 
> The elevator trim for level flight then causes all of the symptoms you 
> described.
> 
> Regards,
> 
> Eric.
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