OS MAX 55 AX Graupner 2715

OS MAX 55 AX mit Schalldämpfer Graupner 2715 Description

Aircraft motor mounted on two ball bearings with ringless OS special piston/cylinder fitting. So that it can be adjusted more safely, the nozzle needle is attached at the rear of the motor. Alongside other improvements, this series of motors sets itself apart from its predecessors with an increase in power of approximately 15%.

Specification
Width : 51 mm
Output (kW, PS): 1,29 (1,75) kW (PS)
Shaft thread: ¼"-28 UNF
Distance of screw hole /longitudinal: 25 mm
Carburettor : 40 J
All-up weight, approx.: 404 g
Height approx.: 105 mm
Diameter of fixing hole: 4,2 mm
rpm range, approx.: 2000~17000 U/min
Bore: 23,0 mm
Distance of screw hole / crosswise: 52 mm
Cylinder capacity: 8,93 cm³
Output (kW, PS) at: 16000 U/min
Recommended propeller: 11x7-12x10
Length to hub: 96 mm
Stroke: 21,5 mm