O.S. Engine 61RX-H High-Performance Nitro Helicopter Engine  [OS-17920]

High-Output Rotor Power: O.S. Engine 61RX-H

For RC helicopter pilots chasing steady throttle and strong midrange, the O.S. Engine 61RX-H delivers refined nitro performance and solid build quality. Precision machining and thoughtful design provide dependable starts and long service life for frequent flyers.

Engineered for Controlled Power

The O.S. Engine 61RX-H is assembled with close tolerances so components operate smoothly together, producing predictable power across the rev range. Its glow plug ignition gives prompt starts and dependable running under load. Pilots will value the tough construction that supports extended flying sessions while keeping output consistent.

Tuned for Aerobatic Flight

With quick throttle response and a stable power band, the 61RX-H is well suited to aerobatic routines. The engine helps pilots perform tight loops and precise rolls with confidence, while the balanced package supports nimble handling.

Performance Compared to Peers

When measured against similar engines, the 61RX-H is recognised for a smoother power delivery and sensible fuel use, making it a sensible upgrade for those moving up from entry-level powerplants. It strikes a strong balance of durability and usable power throughout the throttle range.

Experienced pilots looking for a reliable nitro option will find the O.S. Engine 61RX-H a practical upgrade. Its combination of durable construction and refined performance makes it a dependable choice for advanced flying rigs.