Harvard tip stall  
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All Forums >> RC Airplanes >> Aerodynamics >> Harvard tip stall
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Harvard tip stall - 2/26/2007 6:46:52 PM   
west6008


 

Posts: 148
Joined: 11/10/2005
From: Morell, PE, CANADA
Status: offline 		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?
       Post #: 1

RE: Harvard tip stall - 2/26/2007 6:49:29 PM   
Tall Paul



Posts: 4725
Joined: 6/23/2002
From: Palmdale, CA, USA
Status: offline 		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.

_____________________________

Sparky Paul
http://www.angelfire.com/indie/aerostuff

(in reply to west6008)
       Post #: 2

RE: Harvard tip stall - 2/27/2007 3:23:25 PM   
Balsa Shavings



Posts: 68
Joined: 1/15/2006
From: Hog Island, NC, USA
Status: offline 		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

_____________________________

Oh, The Sweet Smell Of Nitro & Castor Oil !!!!!!!!

(in reply to Tall Paul)
       Post #: 3

RE: Harvard tip stall - 2/27/2007 5:41:00 PM   
mesae



Posts: 568
Joined: 12/16/2002
From: Edmond, OK, USA
Status: offline 		It made a good trainer though - it "encouraged" good flying habits in preparation for the real fighters.

_____________________________

"The purpose of time is to prevent everything from happening all at once."

(in reply to Balsa Shavings)
       Post #: 4

RE: Harvard tip stall - 2/27/2007 10:34:02 PM   
west6008


 

Posts: 148
Joined: 11/10/2005
From: Morell, PE, CANADA
Status: offline 		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!

(in reply to mesae)
       Post #: 5

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