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Product Details
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O.S. FS91 Surpass II-P w/F-4020 Sil
This latest version of the popular FS91 Surpass features a true pressurised fuel system. Similar to the new FS 120S-III the new FS 91-II P has a pump system that is capable of delivering constant fuel via the regulatory carburettor. It is therefore ideally suited to the emerging '90' size aerobatic models. Designed to be used with 11 x 10-11" to 12 x 8" propellers. If you're looking for constant fuel feed at any attitude this is the engine to choose. Supplied with an effective large volume muffler.
Specification
Propeller Range: 11x11-12 12x10-12 13x9 14x7 15x6 16x6
Weight: 650g
Displacement: 14.95cc 0.912cu. In.
Bore: 27.7mm 1.091in.
Stroke: 24.8mm0.976in
Power Output: 1.6/11000 (BHP/RPM)
Practical RPM: 2000-12000
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