O.S. 37SZ-H Ringed OSMG1945

This engine powered the 1st, 2nd and 3rd place finishers in the 2005 World Championships in Spain.

Features

• O.S. 37SZ-H Ringed OSMG1945

• Premium performance for 30-sized machines, from extreme aerobatics to stable hovering

• Same mounting pattern and muffler dimensions as the .32 SX-H, for easy installation in most 30-size helis

• Re-engineered crankshaft reduces vibration resulting in smooth power across the entire RPM range

• 20M carburetor with Idle Needle positioned on same side as Main Needle for easier adjustments

Specifications

• Displacement: 0.37 cu in (6.07cc)

• Bore: 0.806 in (20.5mm)

• Stroke: 0.725 in (18.4mm)

• Practical RPM range: 2000-21,000

• Output: 1.4 ps @ 18,000 RPM

• Weight: 10.3oz (293g)

• Crankshaft Size: 1/4-28

• Distance between mounting holes same side: 0.6" (15mm)

• Distance between mounting holes opposite side: 1.5" (38mm)

• Width including mounting flanges: 1.8" (45mm)

• Width neglecting mounting flanges: 1.5" (38mm)

• Height/bottom of crankcase to top of cylinder head: 3" (76mm)

• Height/bottom mounting flanges to top of cylinder head: 2.4" (61mm)

• Distance/center of crankcase to front bearing: 1.8" (46mm)

• Distance from backplate to front bearing: 2.6" (67mm)

• Distance from backplate to end of crankshaft: 3.7" (94mm)

• Low speed needle 1 turn IN from flush with carb body

• High speed needle 1.5 turns OUT from closed

Package Contents

• O.S. 37SZ-H Ringed OSMG1945

• with #8 Glow Plug, 20M Carburetor, instruction manual and sticker sheet

Requirements

• Muffler

• Heli fuel with 10%-30% nitro content

Comments

• Drive Washer is not included, if needed order OSMG5506.