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OS FS .70 Surpass
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.
  • 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.
Displacement 0.702 (11.5 cc)
Bore 1.016 in (25.81 mm)
Stroke 0.866 in (22 mm)
RPM 2000 - 12000


1.10 BHP @ 11000 RPM
Weight 20.10 oz (570 g)
Recommended Props 11x8-9, 12x7-8, 12.5x6
Price R Not Available