O.S. Engines

O.S. 50SX-H Ringed Hyper Heli Engine

50SX-H Ringed Hyper Heli Engine

A "Hyper" engine for hyper heli performance!

The 50SX-H Ringed Hyper is ideal for 50-class helis, with improved combustion efficiency for super-stable hovering and aerobatics.

  • Actually mounts in the same space as a .30-size application.
  • The 60LH carburetor features 1.5mm more bore, to increase overall power.

Displacement: 0.499 cu in (8.17 cc) Bore: 0.866 in (22 mm) Stroke: 0.847 in (21.5 mm) Practical rpm: 2,000-20,000 Output: 1.87 hp @ 17,000 rpm Weight: 14.3 oz (406 g) Includes: 60LH carburetor, #8 glow plug Requires: muffler, drive hub