guineapig

Hello my name is Ryan, and I am wondering what size motors and servos I should use in a 400% Guinea pig? I have estimated the weight of the frame ,with no electronics, to be 37lb. This includes the foam board, 10' aluminum 1" square box spar, and 10, 12 stick packs of hot glue. I have no idea...

the power pack for the guinea pig comes with counter rotating props but not counter rotating prop adapters for the motors is it necessary for the plane to have counter rotating propellers? i tried to put counter rotating props on it but the torque of the motor made the prop nut unscrew and fly...