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Harvard tip stall

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Harvard tip stall

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Old 02-26-2007 | 01:46 PM
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From: Morell, PE, CANADA
Default Harvard tip stall

Just finished test glides on a .10 powered Harvard/AT-6
WHAT a nasty tip stall!
The CG is ok
Has washout in wingtips.
The stabilizer incidence is zero degrees
The wing is plus 2 degrees
No ailerons, rudder and elevator only
I've had a free flight Harvard that was quite tame.
Maybe I have the elevator set too touchy?
Old 02-26-2007 | 01:49 PM
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Default RE: Harvard tip stall

Yup. The elevator is too touchy!
The T-6 is a horrible airplane, no matter how you look at it!
The full-scale was bad, models are just as bad.
Move the c.g. forward a bit, and cut down the elevator travel.
Old 02-27-2007 | 10:23 AM
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Default RE: Harvard tip stall

There's an old saying about the T-6 Texan. It's not safely landed until it is tied down on the ramp. I have built a couple of T-6's, and all of them have went to the giant hanger in the sky. Tame down the elevator and use some expo on it, if you can.



Keep The Faith: Johnny
Old 02-27-2007 | 12:40 PM
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Default RE: Harvard tip stall

It made a good trainer though - it "encouraged" good flying habits in preparation for the real fighters.
Old 02-27-2007 | 05:34 PM
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From: Morell, PE, CANADA
Default RE: Harvard tip stall

Thanks everyone--I also cut down the weight by clawing a bunch of wood out of the airplane,
and removed the muffler from the OS .10
It should have a realistic cackle now!
Will post pictures in the 1/2 A Forum in a month or so
-that is, if it decides to fly!

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