This is the Natural Finish OS Max .10 LA Aircraft Engine. Great for compact size and trainer model aircraft.

FEATURES: 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

INCLUDES: .10 O.S. Max LA Engine w/Remote Needle Valve and #10H Carburetor, A3 glow plug, #871 muffler with pressure fitting, two 2.6 x 23mm phillips head muffler mounting screws, 2.5" (63mm) section of fuel tubing and instruction manual

REQUIRES: 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.

SPECS: Length end of crankshaft to back of the needle: 3.2" (82mm) Length back of needle to front of drive washer: 2.4" (62mm) Length mounting holes on-center front to rear: 0.43" (11mm) Length center of Crankcase to end of Drive Washer: 1.5" (38.7mm) Width mounting holes on-center side to side: 1.2" (31.4mm) Crankcase Width: 1.4" (38.6mm) with mounting flanges Crankshaft Thread Size: 5.0mm x 0.8mm Height bottom of Crankcase to top of Cylinder Head: 2.2" (56mm) Height bottom of mounting tab to top or Cylinder Head: 1.7" (44.3mm) Displacement: 0.107 cu in (1.76cc) Bore: 0.529 in (13.4mm) Stroke: 0.488 in (12.4mm) RPM Range: 2500-18,000 RPM Output: 0.27 ps @ 17,000 RPM Weight: 3.95oz (112g)