MFA Torpedo 850 motor designed specifically for high performance medium size (30" - 48") model boats. It gives planing' type performance and is ideal for fast cruisers, off-shore type powerboats etc. Comes complete with mounting bracket and connecting leads. Specification Operating Voltage 12 volts. Current approx. 10.82A at max efficiency. RPM at 12.0v - 9778 at max efficiency. Weight 595g (approx) Shaft Diameter - 6.35mm (1/4") Supplied complete with mount & connecting cables Part No: M1115/1 Coupling required for motor - 1/4 Coupling