RE: New Top Flite P-40 60 sized arf
Had a similar problem with a kit built TF P-40. Getting ready to land, gear down, then put flaps down and plane started rolling left. Figured it was the flaps since it started just when I put down the flaps. Had some altitude and was able to control the roll with the ailerons and pulled flaps up and landed ok. The linkage had come off at the horn on the right flap. Also had intermittent flaps extensions on a plane with a reverser. Changed things around and used Y connection and problem went away.