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Product Details
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O.S. FS70 Ultimate w/F-4020 Sil.
Sometimes 'compromise' is not required and only the best will do. The FS70 Ultimate compromises nothing and is an all-out performance engine designed for use in the most demanding environments.
The sophisticated pumped fuel system delivers exactly the right mixture through its dedicated carburettor no matter what manoeuvres the model is asked to perform. Hovering where precise throttle is required or all-out 3D, it's all the same for the FS70 Ultimate.
The special nature of this engine means many components have been specifically designed for this engine. This is reflected in the amazingly compact external dimensions and low weight.
Specification
Propeller Range: 13x7-8 13x6
Weight: 455g 16.05 oz
Displacement: 11.45cc 0.70cu in.
Bore: 27.7mm 1.09in.
Stroke: 19.0mm 0.748in
Power Output: 1.2PS@11000 RPM
Practical RPM: 2000-15000
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