The O.S.® Engines 155FS-a 4-stroke engine is designed to give more power from a smaller package. The 155FS-a produces 2.6 horsepower - about the same as many 200-size power plants - from a package that's about the same size and weight as most 120-sizw engines! Fewer modifications and easier retrofits leave you with more time to enjoy the added performance. And since the 155FS-a is a pumped 4-stroke, you'll be able to enjoy improved performance consistently - regardless of model attitude, fuel levels or tank position. All of this with easier maintenance - and less of it! Instead of venting oil through a crankcase tube, the 155FS-a recirculates it which improves lubrication of the working parts and prevents oil from getting all over the cowl. Any way you look at it, the 155FS-a is a great choice for giant-scale modeling.
SPECIFICATIONS
Displacement: 1.548 cu in (25.36 cc)
Bore: 1.323 in (33.6 mm)
Stroke: 1.126 in (28.6 mm)
Practical RPM Range: 2,000 - 10,000
Output: 2.6 hp @ 10,000 rpm
Weight: 1.775 lbs (805.0 g)
Retail
OSMG0998 155FS-a 4-stroke Engine $799.99
Visit the O.S. Engines website at www.osengines.com
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