OS Max 46LA-S Control Line Engine with Muffler. Features: LA-S series engines control line engines replace the carburetor with a Venturi that keeps the engine running at a constant speed. Remote needle valve reduces the chance of injury from spinning props. Nylon back plate mount and ratchet spring help hold settings against vibration "creep". An O-ring helps seal the needle from fuel and air leaks. Heavy duty webbing reinforces the one-piece crankcase in high stress areas. Two year warranty against manufacturing defects in parts and workmanship. The crankcase has a blue finish. Includes 46LA-s Engine with E3030 Muffler - two 3x30 mm Phillips head muffler mounting screws - #A3 Glow plug - decal sheet and instruction manual. Requires Fuel 10% to 20% Nitro and 18% oil content. Props: Break in: 11x 6 - Aerobatic and Sport: 11x 6 - 11x 7 - 12 x5 - 12 x6 OS-46CLRegular price: $159.99Sale price: $86.99 July Special! Take $3 off any order over $50 which includes a Black Hawk Model with code word BHM. Every order over $25 will recieve one FREE package of Control Line Connectors.