• 3W-70i B2 CS

Two-cylinder engine with very good medium-range running characteristics as a competition engine (CS version)

The engine is ideally suited for towing and 3D flights as well as for flight models with a mass of up to 10 kg. Here the engine distinguishes itself with extreme running smoothness and a very good medium-range running characteristics.
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 capacity68,00 ccm
Power7,0 PS / 5,14 KW
Bore diameter38,00 mm
Stroke30,00 mm
Rpm range1.200 – 8.500 U/min-1
Weight incl. ignition1,950 kg incl. ignition
Crankshaft3 ball bearing
Oil/gasoline ratio1:50 Mix
Ignition6 – 8,4 V DC

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3W-70i B2 CS

  • £1,651.00

  • Ex Tax: £1,375.83