RE: Twin Otter 125inch wingspan
no because any model built with the split ailerons etc is almost certain to be doomed to failure it is far to complex and delicate when reduced to model size. , if they were on the plans it would be assumed that I believe it sensible to use on the model and I do not think it practical . There is no real reason to split the ailerons etc as the flaps and ailerons are extremly effective as drawn and the hinge outline looks and is scale in shape, but feel free to take the chance if you desire. I know from the prototypes it is a real challange and very risky as any bind up will probably result in a crash if only on one side John