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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
7:1 gear ratio optimized for 550–580 mm blades
Aluminum Front Servo Mount x 1pc
0mm Flat Screwdriver x1
Width: 50mm
O.S.Speed 91HZ-R 3D Helicopter Engine Adhesives 7:1 gear ratio optimized forFollowing the popularity of the 91HZ R with on demand regulator, O. S. has now taken high performance, high speed helicopter engines to the next stage of evolution. Features: Lightweight, machined heat sink head Big bore carburettors best suited for the intended use (F3C or 3D) Best precision advanced exhaust cylinder timing (for F3C or 3D) Newly designed combustion chambers, shaped to match the big bore carburetors and advanced exhaust cylinder
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