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Old May 30, 2006, 10:49 AM
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**NEW** O.S. Engines .91 SZ-H PH-Hyper Ringed Heli Engine w/Pump

**NEW** O.S. Engines .91 SZ-H PH-Hyper Ringed Heli Engine w/Pump

“Hyping” performance — and heli’s!

• O.S. has enhanced the World Championship-winning performance of the .91 SZ-H Ringed heli engine by equipping the PH-Hyper version with a pump.
• The pump delivers consistent fuel pressure, regardless of the heli’s attitude.
• Pilots will still enjoy all of the .91 SZ-H’s original features — including new intake porting, a new carb and a redesigned crankcase that offers better support for the clutch and rotor.

Specifications:
• Displacement: 0.91 cu in (15cc) • Bore: 1.02 in (25.8mm) • Stroke: 0.87 in (22.0mm) • Output: 3.3 ps @ 15,000 rpm • Practical rpm range: 2000-16,000 • Weight w/o muffler: 21.3 oz (605g) • Includes: fuel pump, #8 glow plug

Retail Street
OSMG1984 .91 SZ-H PH-Hyper Ringed Heli Engine w/Pump $649.99 $419.99
OSMG1983 .91 SZ-H Ringed Heli Engine $549.99 $349.99

IN STOCK NOW

For more information please visit www.osengines.com
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