I have sierra landing gear mains and tail wheel plus 2 air tanks from composite p-47 , only one flight on it no damage what so ever. wheels are 7 dia. prop has composite blades 30 long. hub is a solo hub it was never even run on the Eng which was a moki 250. up3 valve is free gear is 1500.00 or best offer prop is 500.00 or best offer can be purchased separately. if using pay pall you pay the 3 % to them. thanks for looking.