O.S. Engine OSMG0561 61FX High-Performance RC Airplane Engine  [OSMG0561]

O.S. Engine 61FX
Price:
USD$240.00
Brand:
O.S. Engine
Model:
OSMG0561
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The O.S. Engine 61FX: A Powerhouse for RC Aviation

The O.S. Engine 61FX stands as a testament to engineering excellence in the world of RC airplane engines. Designed for both sport and competition use, this engine is a favorite among hobbyists seeking performance and reliability. The O.S. Engine brand has long been synonymous with quality, and the 61FX model continues this tradition with its advanced features and robust construction.

Unmatched Cooling and Durability

One of the standout features of the 61FX is its semi-square head shape, which increases the fin area to enhance cooling capacity. This design ensures that the engine maintains optimal temperatures even during prolonged use, thereby extending its lifespan. Additionally, the dual ball bearing construction adds to the engine's durability, making it a reliable choice for serious flyers.

Versatile Tuning Options

The 61FX is equipped with a high-performance carburetor and a muffler that features an adjustable exhaust direction and built-in pressure tap. These components allow for precise tuning, giving pilots the flexibility to adjust their setup according to specific flight conditions or personal preferences. The remote needle valve can be positioned in two ways, minimizing the need for cowl modifications and preserving the scale appearance of your aircraft.

Specifications

  • Displacement: 0.607 cu in
  • Bore: 0.945 in
  • Stroke: 0.866 in
  • Practical RPM: 2,000-17,000
  • Output: 1.90 hp @ 16,000 rpm
  • Weight: 19.4 oz
  • Recommended Props: Tuned Pipe: 12x9, 12x10, 12x11; Sport: 12x6, 12x7, 12x8, 13x6, 13x7

The O.S. Engine 61FX is ideal for both experienced hobbyists and competitive flyers who demand precision and power from their equipment. Its advanced cooling system and versatile tuning options make it a valuable addition to any RC enthusiast's collection.

While it's designed for performance, beginners can use it with proper guidance and setup.
Regular cleaning and inspection of the needle valve and carburetor are recommended.
Yes, the muffler allows for adjustable exhaust direction to suit different setups.
For tuned pipe, use 12x9 to 12x11; for sport, use 12x6 to 13x7 propellers.

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