O.S. Engine OSMG0580 95AX Compact High-Output Aerobatic Motor  [OSMG0580]

O.S. Engine 95AX Engine
Price:
AUD$425.20
Brand:
O.S. Engine
Model:
OSMG0580
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What the O.S. Engine 95AX Brings to Your Model

The O.S. Engine 95AX is a compact, high-output glow engine suited for pilots who prioritise reliable power and precise throttle feel. Its balance of size and horsepower makes it attractive for aerobatic and large-scale airframes where space is limited.

Engineered for Controlled Aerobatics

With a bolt pattern similar to the 75AX, the 95AX fits a range of cowlings and mount setups while offering the fast throttle response aerobatic flying requires. Its power curve supports tight manoeuvres and quick recoveries.

Balanced Design for Less Vibration

Careful internal balancing keeps vibration low, helping to protect the airframe and onboard systems. Smoother running also contributes to steadier needle settings and more predictable engine behaviour in flight.

Included E-4040 Silencer Aids Noise Reduction

The supplied E-4040 Power Box muffler helps suppress exhaust noise and contributes to tuned exhaust performance, giving the engine a quieter character without sacrificing output.

Specifications

  • Displacement: 0.949 cu in (15.55 cc)
  • Bore: 1.091 in (27.7 mm)
  • Stroke: 1.016 in (25.8 mm)
  • Practical RPM Range: 2,000-16,000
  • Power Output: 2.9 hp @ 15,000 rpm
  • Engine Weight: 20 oz (567 g)
  • Includes: E-4040 Power Box silencer, O.S. #8 Glow Plug, Needle Valve Extension
  • Recommended Prop Sizes: 14x8, 15x6-8, 16x6-8

For experienced flyers, the 95AX combines compact installation and strong performance, making it a solid choice for competitive aerobatics and larger sport models.

Standard single-cylinder mounts work well, but ensure secure fastening and consider vibration-damping hardware if your airframe is sensitive to vibration.
The kit includes an O.S. #8 glow plug, which is a common fit for tuning across the practical rpm range of the engine.
Use a quality glow fuel with the recommended nitro content for aerobatic use and ensure your tank and lines are clean to prevent lean runs at high rpm.
Begin with the needle settings suggested by O.S., then adjust for midrange and top-end rpm while monitoring plug colour and performance during incremental test flights.
The E-4040 Power Box can be inspected and refitted; check gasket condition and mounting screws periodically to prevent leaks and preserve performance.

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