OS Max 15CV-A R/C airplane engine with muffler was based on the .15 CV Buggy Engine, this engine was adapted for air-craft use with an aircraft style cylinder head, rotary carb, and a remote needle valve to reduce chance of injury from spinning props. Front and rear crankshaft bearings for increased power and long life. Two year warranty against manufacturing defects in parts and workman-ship. Crankcase has a blue finish. This product includes one 15CV-A R/C airplane engine with #871 muffler. Two 2.2 x 22mm phillips head muffler mounting screws. #A3 glow plug. Decal sheet. Instruction manual.

Fuel: 10% to 20% Nitro and 18% Oil content is recommended.
Prop: Break in: 7x5.
Sport: 7x5, 7x6, 8x4, 8x6, 9x4.
Aerobatic: 8x4, 8x6.