rc4me2

My Feedback: (13)

Hi Guys,

I am quickly getting comfortable with my KatP kit plane. I shimmed a little right thrust in when I built it - just out of reflex I guess. The wild thing is that I was starting low-level torque-rolling yesterday and she wanted to torque to the right not the left. Yep, it was spinning in the same direction as the prop[X(]. This freaked me out to the point where I had to hold left aileron to get it to roll in the familiar direction.

All I can think is that it is the right thrust - what do you think?

Thanks,

JC

STLPilot

My Feedback: (21)

What motor, prop and engine are you using?

rc4me2

My Feedback: (13)

Hello,

OS .46FX, tower muffler, APC 12.25x3.75 prop

JC

AFSalmon

My Feedback: (3)

It's not necessarily the right thrust but this happens occasionally and is usually due to not keeping the plane perfectly balanced on the prop. Torque is developed through the rotation of mass and given how light the props are simply means not much torque is transferred to the airframe. Putting on a heavier prop will cause the plane to want to torque roll even more and a lighter prop less. Having the proper right thrust is however important unless you use rudder mixing slaved to the throttle channel. Some pattern and IMAC guys are now doing this but most of us use about 2-3 degrees of right thrust.