O.S Engines aircraft engine with natural finish. Great for compact size and trainer model aircraft.

Remote needle valve mounted on the backplate. Set screw in the end of the needle valve is used to mount an extension wire for in-cowl applications (wire not included). Extra-long bushing supported crankshaft. Vertical fuel inlet on the needle valve at rear of engine. Thicker webbing on high-stress areas. Two year limited warranty.

Fuel: 5% to 15% nitromethane, 18% lubricant
Propeller: 7x4 for break in, 7x3-5, 8x4 for trainer and sport models
Misc. Items: Starting and maintenance equipment.