Incidence readings?
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From: Ithaca, NY
I recently borrowed an incidence meter from a fellow club member.
Here are the readings:
With the tail surface "leveled", I took a reading of the main wing and got +.5. The motor read +1.5.
The plane requires about 3 clicks of up elevator to fly level. In the air the plane requires down elevator in rolls and pulls "up" (towards canopy) in knife edge. Can I assume that I need to adjust both ailerons to get 0 on the meter and shim the motor to get 0 on that as well?
It's a Balsa USA Stingray built with no wing dihedral. It's got an Irvine .53 for a motor.
Any ideas?
Thanks.
Here are the readings:
With the tail surface "leveled", I took a reading of the main wing and got +.5. The motor read +1.5.
The plane requires about 3 clicks of up elevator to fly level. In the air the plane requires down elevator in rolls and pulls "up" (towards canopy) in knife edge. Can I assume that I need to adjust both ailerons to get 0 on the meter and shim the motor to get 0 on that as well?
It's a Balsa USA Stingray built with no wing dihedral. It's got an Irvine .53 for a motor.
Any ideas?
Thanks.
#2

My Feedback: (1)
Your Sting Ray sounds about like mine. A buddy gave it to me to test engines in. Mine has a little dihedral so it rolls out in knife edge and you have to hold aileron. I did clip one rib off each side so it rolls better. It might be a tad nose heavy.
It's not a bad flying plane. I would like 2 aileron servos, but it's still a good test plane. Does a fair flat spin. Needs more rudder.
I have had a Thunder Tiger .46, Magnum .61 4-stroke and lastly a Magnum .52XLS 2 stroke. Your Ray with the Irvine .53 probably goes up like mine, straight up out of sight. A few more flights and the engine goes in an Extreme 330.
Next time I get it out, I'll measure the incidence. Right now my work bench is covered. E-mail me at [email protected].
The photo is when I had the Magnum .61 4s in it. Yes, that's the throttle servo stuck in the top block. "There ain't no way" to go from a 2s to a 4s throttle pushrod gracefully and I did it on a Friday night.
It's not a bad flying plane. I would like 2 aileron servos, but it's still a good test plane. Does a fair flat spin. Needs more rudder.
I have had a Thunder Tiger .46, Magnum .61 4-stroke and lastly a Magnum .52XLS 2 stroke. Your Ray with the Irvine .53 probably goes up like mine, straight up out of sight. A few more flights and the engine goes in an Extreme 330.
Next time I get it out, I'll measure the incidence. Right now my work bench is covered. E-mail me at [email protected].
The photo is when I had the Magnum .61 4s in it. Yes, that's the throttle servo stuck in the top block. "There ain't no way" to go from a 2s to a 4s throttle pushrod gracefully and I did it on a Friday night.



