This is 40LA engine from O.S. Max. This engine replaces the 40FP as a sport
   airplane engine that is packed with O.S. quality. This is a non-ring type
   engine. This engine has an aluminum finish (not blue) and 2-Year Warranty.

FEATURES: 1-piece crankcase 2 bronze crankshaft bushings (sometimes called Oilite bearings) Schnuerle porting (AKA Schnuerle scavenging) Side exhaust Nylon backplate with remote needle valve . 40D carb

INCLUDES: One Expansion-style Muffler #E-3030 One Instructions, Engine Mount Template, O.S. poster, O.S.decal sheet One Assembled engine Two 3x30mm screw to bolt muffler to engine

REQUIRES: Glow Plug (O.S. #A3 is recommended, OSMG2690) Glow Fuel with 5-15% Nitromethane and 20% (minimum) oil content. (Most 5-15% fuels we carry meet these requirements)

SPECS: Construction: Aluminum 1-piece crankcase, piston, cylinder head, crank- shaft, connecting rod, and crankshaft. Nickel-plated Brass cylinder Bore: 21.2mm (.84") Stroke: 18.4mm (.73") Horsepower: 1.0 BHP at 15,000 RPM Weight: 269g (9.49 ozs) Length: 70.0mm (2.75") distance from backplate to front of drive washer Width: 32mm (1.26") width of engine neglecting engine mounting flanges. 40.5mm (1.59") distance between the centers of mounting holes. Weight: 9.5 oz without muffler Height: 82.2mm (3.24") Crankshaft Thread Size: 1/4-28 Recommended Props: Break In: 11X5 Trainer and Sport Models: 10X6.5, 10.5x6, 11x5 Scale Models: 10.5x6, 11x6 Practical RPM Range: 2,000 - 16,000 RPM Fuel with 5% - 15% Nitromethane and 20% (minimum) oil content (Most of the 5%-15% fuels we carry meet these requirements)

COMMENTS: The coverplate for the FX Series will NOT work on this engine.