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Old 04-21-2008 | 10:35 PM
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opjose
 
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From: Poolesville, MD
Default RE: Specs on a Goodrich Extra 300S

Ok...

C.G. 110mm from the LE of the wing CENTERLINE ( not measured at the fuse, rather at the wing center ).

Throws

Aileron 10mm
Elevator 12mm
Rudder 15mm

IMHO these are too conservative.

I maxed out my high rates and then set my low rates to give me the above.

That way I could start out with the recommended throws and quickly switch up or down to check the higher rates and find what I was most comfortable with... it snaps easily on high rates so be careful not to overdo it... however the wing loading is low..

I used a low rate Expo of 30% for ailerons and elevator and 15% for rudder.
I used a high rate Expo of 50% for ailerons and elevator and 25% for rudder.

It flies fine, but I have not had a chance to fully wring it out as I'm still breaking in the engine.

The wings are large enough that tip stalling is not as big an issue.