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This is the 105HZ 1.05 cu in Helicopter Engine from O.S. Engines.
Same mounting dimensions as a .90 cu in engine
Machined blue anodized aluminum heatsink cylinder head
Velocity stack increases airflow and enhances engine performance
Backplate accepts the Futaba BPS-1 RPM sensor for the GY701 and
Ideal bore and stroke ratio for lowest vibration
Two year limited warranty through Hobby Services beginning at date of
105HZ 1.05 cu in Helicopter Engine with 61E Carburetor
#8 Glow Plug
0.1mm Head Gasket
0.2mm Head Gasket (installed)
Fuel: Heli blend with 15% nitro content
Glow starter and field equipment
Displacement: 1.048 cu in (17.17 cc) Bore: 1.142" (29mm) Stroke: 1.024" (26mm) RPM Range: 2,000 - 16.500 Output: 3.7 ps @ 15,000 RPM Weight: 21.03oz (596g) Crankshaft Size: UNF 5/16-24
Carburetor Settings; High Speed Needle Valve: Approx. 2 turns open from fully closed Medium Speed Needle valve: 1 turn open from fully closed Idle Mixture Control Screw: At basic position when engine left
factory Distance/Center of Mounting Holes Same Side: 0.98" (25mm) Distance/Center of Mounting Holes Opposite Side: 2.04" (52mm) Crankcase Width Below Mounting Tabs: 1.7" (43mm) Crankcase Width at Mounting Tabs: 2.4" (61mm) Width from Throttle Arm to Center: 1.6" (42mm) Height from Bottom of Mounting Tabs to Cylinder Head: 3.1" (79mm) Height/Bottom Mounting Tabs to Muffler Mounting Holes: 1.7" (42.8mm) Height/Bottom of Crankcase to top of Cylinder Head: 3.9" (99mm) Length from Backplate to Front Bearing: 3.2" (82.6mm) Length from End of Crankshaft to Center of Engine: 3.5" (88.7mm)
– If you need more information, use these O.S. resources –
Tower Hobbies Has Been Serving Hobbyists Since 1971 • Call 800-637-6050 or 217-398-3636
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