FS-52H Surpass

Impressive O.S. 4-stroke power for heli fliers

Heli fliers who are looking to boost their heli's performance with a 4-stroke engine can benefit from a special heli version of the O.S. FS-52. This power plant delivers the muscle required for performing thrilling aerobatics, thanks to many features that it shares with its fixed-wing counterpart.

Type 40N carburetor with automatic mixture control offers more stable idling and good mid-range performance.
Needle and idling adjustments can be made from same side for convenience, and the needle direction is reversible to meet any application
The crankshaft, camshaft and piston ring have been plated to prevent corrosion
The rear ball bearing is rubber-sealed for added durability and corrosion resistance
The crankshaft comes specially adapted for Kyosho's Legato helicopter

SPECIFICATIONS
Stock Number: OSMG1952
Displacement: 0.523 cu in (8.6 cc)
Bore: 0.906 in (23 mm)
Stroke: 0.811 in (21 mm)
Practical rpm: 2,300-13,000
Output: 0.9 hp @ 12,000 rpm
Weight: 15.3 oz (435 g)
34201 FS-52H Surpass Parts Listing