scorchy72

I have recently completed a kit Pete 'N Poke sport 40. I'm using an electric motor although it was originally designed for a glow engine. The plans call for a 3 degree glow motor offset.

I set the electric with a 3 degree offset. During initial flights, the plane is hard to turn right and wants to slide if no rudder is used. It turns left just fine.

My Question; Do I really need to set the electric motor with a 3 degree offset?

davidgeorge212

If it turns left better than right, I believe you might need a little more right thrust to counteract it.

cfircav8r

My Feedback: (1)

The right thrust is there to offset some of the torque effects. Going to electric will not noticably reduce or enhance these unless you significantly change propeller size and/or rpm. The more likely problem is your trim setup and the characteristics of the A/C. If you are throttled back some and flying lower speeds you will have a greater left turning tendancy and this will manefest as a slip when turning right and a more natural turn to the left. WWI A/C are very prone to this and need to be flown with rudder, and the Pete 'N Poke has similar qualities. More right rudder than left during turns and a significant amount on climb out. Are you running a larger prop diameter and/or are you operating at a higher AOA due to a lower power output? This will aggravate the problem. Down thrust can also help with the left turning tendancy as it will reduce the P-factor and have the added benefit of reducing the ballooning effect when applying power. As far as trim if you are using rudder to compensate for a roll or aileron to compensate for a yaw problem you can have some very bad turning tendancies. Check your trim first then if you still have trouble try about 3 degrees of down thrust. If it creates more trouble or just doesn't help at all take it back out and try a little more right thrust. 5 degrees is not unheard of, just not as common.