O.S. Engine OSMG0580 95AX Precision Aerobatic Powerplant  [OSMG0580]

O.S. Engine 95AX Engine
Price:
CAD$412.49
Brand:
O.S. Engine
Model:
OSMG0580
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Performance Overview of the O.S. Engine 95AX

RC pilots who need a compact but potent powerplant will appreciate the O.S. Engine 95AX. Renowned for steady power in tight engine bays, this model suits aerobatic flyers and large-scale enthusiasts who demand dependable output and consistent throttle response.

Built for Aerobatic Manoeuvres

The O.S. Engine 95AX provides focused power delivery in a compact package. Sharing bolt pattern compatibility with the smaller 75AX, it installs cleanly into many airframes while supporting the quick throttle changes and control authority needed for aerobatic routines.

Reduced Vibration and Stable Running

A well balanced crankshaft is a key trait of the 95AX, cutting down on vibration that can stress airframe components. The quieter running profile helps maintain structural integrity and reduces fatigue on mounts and fittings during extended flights.

Muffler Design That Helps Power and Noise Control

This engine ships with the E-4040 Power Box muffler, which helps tame noise and contributes to efficient exhaust tuning. The fitted silencer aids quieter operation without compromising the engine's effective power 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 seasoned RC pilots, the 95AX is a go-to option when compact fit and high output matter. It combines strong peak power with manageable vibration levels, making it a practical choice for aerobatic and large-scale models.

This model has strong output and requires careful tuning, so it is better suited to those who already have glow experience or who can get hands-on help from a club or mentor.
Recommended props listed include 14x8 and 15x6-8 ranges; selection depends on model weight and desired rpm. Start with the suggested sizes and tweak for climb and cruise characteristics.
Balanced internals reduce vibration and help protect airframe mounts. Verify the crank balance and use proper engine mounts to minimise transmitted vibration.
Inspect fuel fittings, glow plug condition, and muffler attachments regularly. A basic check every 10 hours and a more detailed service at 10-15 hours helps maintain reliability.

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