O.S. Engine #34720 - OS FS-72  [OS-34720]

this is actually the radiance driven O.S. 72FS-a 4-Stroke Aircraft motor.

Features:

• Ideal powerplant for 56 size aircraft-provides extra power for hovering and 3-D kind manuevers, additionally provides torque for switching larger diameter props for considerably more practical scale filght
• Broad energy musical business suited to Scale plus Sport models
• Exact very same mounting bolt pattern simply because FL-70 and FS-70 Ultimate
• Brand completely new 61N carburetor with extensive consumption pipeline removes reverse movement propensity of air/fuel combination, carbohydrate is reversible 180X
• Blow-by interior oil system eliminates the necessity for a crankcase breather suitable
• Adjustable exhaust socket direction and exhaust port to muffler distance
• Exact identical muffler although the O.S. 81FS-a provides a good exhaust sound with a lower noise degree

Includes:

O.S. 72FS-a 4-Stroke Aircraft Engine with muffler, header, sort F radiance plug manual

Specs:

• Displacement: 0.72 cu in (11.79cc)
• Bore: 1.063" (27.0mm)
• Stroke: 0.822" (20.6mm)
• fat: Engine, 16.79oz (476g)
• Silencer & Manifold,1.90oz (54g)
• energy manufacturing: 1.2 ps/11,000 RPM
• Practical RPM: 2,400-12,500