37SZ-H O.S. Engine Ringed Heli Engine

Plentiful power for 3-D thrills.

Designed to deliver premium performance for 30-sized machines, from extreme
aerobatics to stable hovering!

The crankshaft has been re-engineered to reduce vibration, resulting in smooth
power across the entire rpm range.

A larger rear bearing boosts power even more.

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

SPECIFICATIONS

• Stock Number: OSMG1945
• Displacement: 0.37 cu in (6.07 cc)
• Bore: 0.806 in (20.5 mm)
• Stroke: 0.725 in (18.4 mm)
• Practical rpm: 2,000-21,000
• Output: 1.4 hp @ 18,000 rpm
• Weight: 10.3 oz (293 g)
• Includes: 20M carburetor, #8 glow plug
• Requires: muffler, drive hub