3W-140i B4 CSCompetition engine (CS version) for extreme 3D and towing flightsThanks to its power performance, the engine is very well suited for extreme 3D and towing flights. It can transport a maximum take-off mass of 18 kg when used in aerobatics. Here the engine runs extremely smoothly and quietly with a low level of vibration. Throttle response is very direct, equally so in the medium range.The 3W Competition series (CS version) distinguishes itself through greater performance, more rapid response behaviour, and high torque. The engine thereby achieves a high standard of performance. Transfer ports in the cylinder and crankcase are modified. Cylinder capacity 136,00 ccm Power 12,8 PS / 9,4 KW Bore diameter 38,00 mm Stroke 30,00 mm Rpm range 1.000 – 8.500 U/min-1 Weight incl. ignition 4,000 kg incl. ignition Crankshaft 5 ball bearing Oil/gasoline ratio 1:50 Mix Ignition 6 – 8,4 V DC
