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       This is the O.S. .91HZ-PS 3D Helicopter Engine with PD-08 Pump.

FEATURES: PD-08 pump works with a matched 61B-P carburetor and integral
            regulator to deliver a steady fuel supply at any attitude even
            during the most adventurous 3D manuevers
          Short rectangular heatsink can be entirely enclosed inside cooling
            shroud to lower operating temperatures
          Newly designed piston and crankshaft further reduces vibration and
            improves torque stability over entire RPM range
          Thermo insulator on carburetor blocks engine heat to ensure more
            stable fuel/air mixture
          Pull pull throttle setup
          Two year limited warranty

INCLUDES: O.S. .91HZ-PS 3D Helicopter Engine with PD-08 Pump, 61B-P Carb,
           #8 Glow Plug, instruction manual.

REQUIRES: Fuel: 15% heli mix
          Glow plug wrench and field equipment

SPECS:    Displacement: 0.91 cu in (14.95 cc)
          Bore: 1.09 in (27.7mm)
          Stroke: 0.98 in (24.8mm)
          Practical RPM: 2,000 - 16,000
          Power Output: 3.4 hp @ 15,000 RPM
          Weight: 1.4 lb (635g)
          Height from crankcase bottom to top of cylinder head: 101mm (3.97")
          Height/bottom of mounting tab to top of cylinder head: 80mm (3.10")
          Distance between mounting holes same side:             24mm (0.94")
          Distance between mounting holes opposite side:         51mm (2.00")
          Distance between muffler screw holes:                  41mm (1.61")
          Distance/bottom of mounting tab to muffler screw holes:41mm (1.61")
          Length from front of case to backplate:                81mm (3.18")
          Length from backplate to end of crankshaft (w/pump):  128mm (5.03")
          Width of crankcase below mounting tabs:                41mm (1.61")
          Width between mounting tabs:                           59mm (2.32")

          Needle Settings: High Speed: 2 turns out from fully closed
                           Mid Range:  1/2 turn open
                           Mixture Control (low speed): indentation on screw
                                       head straight up and down (vetrical)

                                                                   JiM 11.18.08
                                                                         ir/jxs



– If you need more information, use these O.S. resources –

E-mail: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970


 
Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822  








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