OS MAX FS A-56 Graupner 2729

OS MAX FS A-56 incl.Schalldämpfer Graupner 2729 OS SURPASS motors
OS has developed a new generation of four-stroke single-cylinder motors with the FS-SURPASS series. Their power in particular significantly exceeds the predecessor OS four-stroke motors of the same capacity.
9.23 cm³ capacity.

• High-performance four-stroke motor, suitable for all types of model aircraft
• Same quality, high performance and reliability, long service life
• Equipped with a 40NA carburettor that is easy to adjust
• The innovative lubrication system means there is no longer any need to lay hoses for the purpose of ventilating the crankcase
• The silencer provided has a large volume and a special design to optimise the noise level

Specification
Width : 51 mm
Output (kW, PS): 0,74 (1,0) kW (PS)
Shaft thread: UNF 1/4-28
Distance of screw hole /longitudinal: 17,5 mm
Carburettor : 40NA
All-up weight, approx.: 419 g
Height approx.: 84 mm
Diameter of fixing hole: 3,7 mm
rpm range, approx.: 2400 - 13000 U/min
Bore: 24,0 mm
Distance of screw hole / crosswise: 44 mm
Cylinder capacity: 9,32 cm³
Output (kW, PS) at: 10000 U/min
Recommended propeller: 12x6 - 13x7
Length to hub: 102 mm
Stroke: 20.6 mm
Shaft diameter: 6,1 mm