O.S. Engine OSMG1951 50SX-H Ringed Hyper Lightweight Powerplant  [OSMG1951]

O.S. Engine 50SX-H Ringed Hyper Heli Engine
Price:
AUD$0.00
Brand:
O.S. Engine
Model:
OSMG1951
Please kindly input your name and email address, we will inform you once we have the restocking.
Or you may find similar product under the
category
Write a review

Lightweight power from the O.S. Engine OSMG1951 50SX-H Ringed Hyper

Pilots seeking an engine that balances weight and power will find the O.S. Engine OSMG1951 50SX-H Ringed Hyper a capable choice. The design aims to give more usable horsepower without adding mass, helping models perform with improved agility.

Power upgrade in a compact package

This Ringed Hyper variant produces increased power over the base 50SX-H while staying light, which supports higher rotor RPM and more responsive handling. The engine fits typical .30-size spaces for easy upgrades.

Improved carburetor for stable throttle

The fitted 60LH carburetor, with a 1.5 mm larger bore, raises peak output and smooths throttle transitions. A practical operating range of 2,000-20,000 RPM covers slow hovering to high speed runs.

Specifications

  • 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: 1.9 hp @ 17,000 rpm
  • Weight: 14.3 oz (406 g)
  • Includes: 60LH carburetor, #8 glow plug
  • Requires: muffler, drive hub

For experienced flyers looking to step up engine performance on mid-size helicopters, the O.S. Engine 50SX-H Ringed Hyper offers a practical balance of power and mass and works well with .30-size setups.

Use a controlled break-in procedure with slightly rich needle settings and moderate run times, checking temperature and plug condition frequently during initial hours.
Confirm alignment with the drive train, ensure adequate cooling airflow, and verify that the muffler and drive hub fit without interference before finalising installation.
Check your model's clutch or drive hub compatibility; the engine itself requires a drive hub and muffler but uses standard clutch arrangements for .30-size applications.
Track temps and glow plug condition, listen for smooth idle and crisp throttle response, and make small needle adjustments during test flights to dial in performance.

Copyright © 2008-2025 rcjaz.com.au All rights reserved