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OS MAX FS A-72 including Silencer

Models designed around a .60 2 stroke can enjoy all the benefits of a four stroke with the OS MAX FS A-72.

Delivers great performance for sport and aerobatic pilots and added realism for scale modellers.
The adjustable F-5030 silencer can be rotated a full 360° and moved in or out for a perfect installation.

With super tight tolerances break in time is reduced and provides a virtually maintenance free engine.

A superb engine that will give years of trouble free life. It is after all an O.S.!


Distance of screw hole / longitudinal [mm]: 20
Distance of screw hole / crosswise [mm]: 45
Diameter of fixing hole [mm]: 3,7
Bore [mm]: 27,0
rpm range, approx.: 2400 - 12500
Recommended propeller: 12x7 - 14x7
All-up weight [g]: 476
Height approx. [mm]: 108
Stroke [mm]: 20,6
Cylinder capacity [ccm]: 11,8
Length to hub: 148
Output [W]: 0,9 (1,2)
Output [kW / PS] at [rpm]: 11000
Carburetor : 61N
Shaft diameter [mm]: 6,1
Shaft thread: UNF 1/4-28


pdf To download a PDF of the parts listing please click here

Spares and Accessories for your O.S. Engine
If you need any spares or accessories for your engine that are not listed on the site please contact us for a price and availability.

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