I have a problem that I hope someone can give me some insight. I built an electric Skimmer sailplane kit. I used a Mega 400 5-pole motor, Castle ESC, LiPo battery. I have attempted to launch the plane twice resulting crashes due to the inability to turn left. The rudder has plenty of thow, the motor has about 2 degrees of thrust angle and slightly down. The flight this afternoon started flat and controled until I needed to stick left. I have not a hint of movement of the airgborne plane to the left. Somehow I landed out of control but no damage. The wing is built straight. Can anyone give me thoughts as to where to look for the problem.