ENJOMOR γ-shape Metal Hot-air Stirling Engine Powered Engine Mini Helicopter Model Building Kit Type_Balance Stirling 0 in (25 mm)

0 in (25 mm)

5cc x 4）

make your children enjoy the high speed rc off road car for a longer period of time

including: water pump

ENJOMOR γ-shape Metal Hot-air Stirling Engine Powered Engine Mini Helicopter Model Building Kit Type_Balance Stirling 0 in (25 mm)ENJOMOR shape Metal Hot air Stirling Engine Powered Engine Mini Helicopter Model Building KitFeatures:. Stirling Helicopter: It is not only a beautiful helicopter, but also powered by a shape Stirling engine. It will not fly, but when you light the alcohol lamp, the propeller will spin as if it is ready to take off. Excellent Manufacturing Process: The model is drawn by CAD and manufactured by CNC precision technology. The body is made of aluminum