RE: dynaflite bird of time
I built a bird of time last year for aero tow but went with flaps instead of spoilers I took out the polyhiedral joint making the wing straight at that point. The wing is two piece. It was easy to do just making the inboard straight. section the flap length.I have only 3 flights on it with the only problem being on the tow portion, we think the tow tugs are too fast for the model, Will experiment more this season