One of the things I did with my LT40 after a couple of years was to add dual aileron servos and, keeping the original aileron servo and torque rod linkage, and turned the inner 1/3 of the original ailerons into flaps.

This modification was not really necessary, but it did give good practice for bashing planes and using flaps. AN LT40 with flaps is interesting...

FWIW.