O.S. Engine 72FS-a  [OSMG0877]

Everybody knows exactly how the 56FS-a, 81FS-a and 110FS-a deliver superior 4-stroke power and gratification, as well as the way they've revolutionized the engine industry. Now, O.S. has filled into the missing link using the release of the 72FS-a. Pilots of .60-sized aircraft are now able to enjoy such FS-a advantages as a blow-by internal oil system. It eliminates the need for a crankcase and re-circulates extra oil throughout the engine. No hassle...No muss...Just a first-rate motor that sets brand new requirements while continuing traditional O.S. quality. The 72FS-a Four-Stroke ?V only from O.S.

The adjustable F-5030 muffler can be rotated 360?X and relocated in or out for a great fit. Rich, deep sound is an extra advantage.

A reversible carbohydrate and narrower camshaft housing simplify installation.

Tighter tolerances and updated engineering reduce maintenance and simplicity set-up.

Delivers more performance capacity to sport pilots and much more practical trip to scale pilots.

Requirements:

• Stock Quantity: OSMG0877
• Displacement: 0.719 cu in (11.8 cc)
• Bore: 1.063 in (27 mm)
• Stroke: 0.811 in (20.6 mm)
• Body weight w/muffler: 18.7 oz (530 g)
• Practical rpm range: 2,400-12,500
• Production: 1.2 hp @ 11,000 rpm
• Includes: 61N carburetor, F-5030 muffler & F radiance plug