O.S. Engine FR5-300  [OSMG1300]

Radial design mimics the look of "Golden Era" planes for lots more convincing scale look

Four ball bearings and two needle bearings smooth procedure, reduce friction and extend engine life

Ringed piston powerhouse features pushrod overhead valves, special inlet manifold, propeller locknut construction and radial mount

SPECIFICATIONS

• Stock Quantity: OSMG1300
• Displacement: 0.607 cu in x 5
• Bore: 0.945 in
• Stroke: 0.866 in
• Practical rpm: 1,800-8,500
• Output: 4.0 hp @ 8,000 rpm
• Weight: 94.3 oz
• Includes: radiance plugs; mount
• Needs: gas; prop
• Suggested Props: 18x12, 18x13, 18x14, 20x8, 20x9, 20x10, 22x8