O.S. Engine OSMG0580 95AX Sport Aerobatic Engine  [OSMG0580]

O.S. Engine 95AX Engine
Price:
NZD$502.22
Brand:
O.S. Engine
Model:
OSMG0580
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Overview for the O.S. Engine 95AX in RC Airframes

The O.S. Engine 95AX is a compact high-performance glow unit favored by model flyers who need reliable power in confined engine bays. It delivers a useful power band for aerobatic routines and heavier scale models where consistent output is important.

Optimised for Precision Flying

Designed with aerobatic use in mind, the 95AX balances size and power so it fits many airframes that accept the 75AX bolt pattern. Pilots will notice crisp throttle response which helps with precise manoeuvres and snap rolls.

Smooth Running via Balanced Components

Internal balance reduces the vibration signature of this single-cylinder engine, protecting the airframe and improving needle stability. That smoother operation helps both pilot confidence and long-term airframe health.

E-4040 Power Box for Quieter, Efficient Operation

The included E-4040 Power Box silencer assists in cutting exhaust noise and supports efficient exhaust tuning, which can slightly improve midrange torque while keeping noise levels down.

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

The 95AX is a dependable option for pilots who need a compact engine with strong peak power and manageable vibration characteristics, fitting many aerobatic and large-scale designs.

Use a robust ignition or glow system and a servo setup rated for aerobatic loads. Ensure your fuel tank and lines support steady flow for aggressive flight profiles.
Yes, the shared bolt pattern helps fitment, but check cowling clearance and propeller clearance before final installation.
Follow the manufacturer run-in steps using moderate rich mixtures and progressive rpm increases. Keep sessions short and inspect the engine between runs to monitor glow plug and needle behaviour.

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