#35910 O.S. Engine – OS FS-91 SURPASS II-P

This is a FS-91 Surpass 4-stroke Engine with Pump Unit. Brand New in Box

Features:

• New rear-mounted updraft 60N carb w/pressure regulator.
• New rear-mounted PD-07 pump unit.
• Helix gear-driven camshaft, supported by ball bearings.
• Ringed piston.
• Grease-packed twin-sealed corrosion-resistant rear ball bearing.

Includes:

• One Assembled Engine w/Carburetor.
• One #F Glow plug.
• One Muffler w/Manifold.
• One Set of Instructions.

Specs:

• Bore: 27.7mm (1.09″)
• Stroke: 24.8mm (.976″)
• Displacement: 14.95cc (0.912 cubic inch)
• Power Output: 1.6 BHP at 11,000 RPM
• Weight-Without Muffler: 22.9oz (649g)
• Weight With Muffler: 24.6oz (697g)
• Practical RPM Range: 2,000 – 12,000 RPM

Suggested Prop(s):

• Stunt planes: 11×10, 11×11, 12×9.5, 12×10, 12×11
• Scale models: 13.5×8, 14×7, 15×6, 16×6, (12×8 & 12.5×7-3 blade)