This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
This is the OS Engines Surpass Series FS-91S-II four stroke ring engine, with 60P carburetor. O.S. developed the Surpass Series of 4-stroke engines for discerning fliers who demand more power. Able to swing larger props and supply more usable horsepower, Surpass 4-strokes provide the best performance for your plane, regardless of scale or flying style.
Features:
Specifications:
Recommended Props:
Features:
- All Surpass engines feature a helix gear-driven camshaft on the front end and dependable updraft carburetor in the back.
- All include glow plug and standard silencer.
Specifications:
- Displacement (in): 0.912
- Bore (in): 1.091
- Stroke (in): 0.976
- RPM range: 2000-12,000
- Output (hp @ RPM): 1.60 @ 11,000
- Weight (oz): 22.9
Recommended Props:
- Stunt: 11x10, 11x11, 12x9.5, 12x10, 12x11
- Scale: 13.5x8, 14x7, 15x6, 16x6
- 3-Blade: 12x8, 12.5x7
This product was added to our catalog on February 11, 2009