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Old 07-07-2007 | 01:43 PM
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Rube Goldberg
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From: Whale Tail, RI
Default RE: Defiant Model 74 Flight problems

You can find an online CG calculator for canard aircraft here:

http://adamone.rchomepage.com/cg_canard.htm

I suggest you measure the required dimesions in millimeters and run it through the calculator to see if the specs are close.

Remember also, the elevators on the canard deflect downwards when you pull back on the elevator stick on the transmitter to go up. Positive incidence in the nose gear is a MUST. Otherwise it will probably "leap" off the ground with insufficient airspeed when you input too much up elevator on the take off roll to try and get it to rotate. It shouldn't be too much different than the Long-EZ which when set up correctly will rotate and lift off on its own.

Good luck!
Rube