I just purchased a partially built one. It looks quite impressive. I'd like to know if the tailwheel is supposed to retract as well as the mains. I have a feeling that a lot of weight is going to be needed in the tail of this plane. With the weight of 4 engines and the main wheels retracting forward there's gonna be a lot of weight that will be needed to be compensate for. The CG will shift when the wheels are retracted. That could mean a tail heavy situation on takeoff and landing. Lots of thinking to do.