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Heli
O.S. MAX 91SX-H Ring C Spec PS
O.S. MAX 91SX-H Ring C Spec PS
Stock Code L-OS19060
£238.49
Overview
O.S. MAX 91SX-H Ring C Spec PSThis new, pumped version improves the .91 SX-H's performance with the addition of a Perry pump, which stabilizes fuel delivery regardless of fuel levels or the heli's attitude.
- The new 60M carburetor has a larger bore (10.6 mm) to help increase engine power.
- Beside sharper looks, the round, blue-anodized head features a re-designed combustion chamber to complement the pump system, along with horizontal fins for better cooling.
- Retains the high-performance advantages of the non-pumped version - including a lighter-weight piston and conrod, plus a more balanced crankshaft that significantly reduces high-rpm vibration.
- Maximum displacement allowed in AMA-sanctioned FAI F3C heli events.
- The pump is an exceptional benefit for 3D fliers, and is less
complicated than in-flight fuel mixture control systems.
Displacement: 0.912 cu. in. (14.95 cc)
Output: 3.1 hp @ 15,000 rpm
Bore: 1.09 in (27.7 mm)
Practical rpm Range: 2,000-16,000
Stroke: 0.98 in (24.8 mm)
Weight: 20.5 oz (581 g)