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O.S. OS Engine MAX 37SZ-H Ring w/o Drive Wash [L-OS14000]  
RRP: £184.99
Our Price: 159.90 


Following on from the concept developed in the 70SZ-H, the latest 37SZ-H brings a new level of performance to '30-class' helicopters.

Just about everything has been changed compared to the 32SX-H in the pursuit of power and control. That super-rigid crankcase contains a highly developed, ringed piston/liner set and optimised crankshaft for the right combination of power and smoothness. The new carburettor has been purpose designed for precision control and is capable of being operated by push-pull linkages if required.




Weight:293g 10.33 oz
Displacement:6.07cc 0.37cu in.
Bore:20.5mm 0.807in.
Stroke:18.4mm 0.724in
Power Output:[email protected] RPM
Practical RPM:2000-21000