Global Motors originally designed a Half VW engine for use in light aircraft.

[1] The CB-40 was re-engineered to overcome problems of vibration and cooling in the original design.

[2] Suited for ultralight use and single seat light sport aircraft, the engine weighs 86 lbs and produces 40 hp (30 kW).

The engine uses a short aluminum crankcase with redesigned oil galleries for improved lubrication.

The engine is counterweight balanced with a drop-forged crankshaft.