Product Details

OS Engines FS 72 Four Stroke Engine OSM34720



The adjustable F-5030 muffler can be rotated 360° and moved in or out for a perfect fit. Rich, deep sound is an added benefit
A reversible carb and narrower camshaft housing simplify installation
Tighter tolerances and updated engineering reduce maintenance and ease set-up
Delivers more performance power to sport pilots and more realistic flight to scale pilots
The Tradition Continues...
Everyone knows about how the FS56-a, FS81-a and FS110-a deliver superior 4-stroke power and performance, as well as how they've revolutionized the engine industry. Now, O.S. has filled in the missing link with the release of the FS72-a. Pilots of .60-sized aircraft can now enjoy such FS-a benefits as a blow-by internal oil system. It eliminates the need for a crankcase and re-circulates excess oil throughout the engine. No fuss...No muss...Just a first-rate engine that sets new standards while continuing traditional O.S. quality. The FS72-a Four-Stroke – only from O.S.

Displacement 0.72 cu in (11.8 cc) Bore 1.063 in (27 mm) Stroke 0.822 in (20.6 mm) Practical rpm range 2,400-12,500 Output 1.18 hp @ 11,000 rpm Weight w/o muffler 16.79 oz (476 g) Weight w/muffler 18.7 oz (530 g) Includes 61N carburetor, F-5030 muffler & F glow plug BrandOS Motors

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