The world's first completely balanced coaxial Diesel piston engine.

The CoAxe Engine is an internationally PCT patent protected design with specific advantages:

· World first DST™ technology - Dynamic, Static and Torsional balance (including drive torque moments)
· Up to 16% increase in propulsive efficiency
· Diesel engine burns multiple fuels including Jet A1 (100LL AVGAS being phased out)
· ULV™ technology - Ultra Low Vibration (all opposing forces equal and opposite)
· Reduced weight, increased payload (no transmission for coaxial drive necessary)
· Competitive pricing (reduced moving parts, cost-effective manufacture)
· Good fuel economy compared to turbines (opposed piston Diesels historically highly efficient)
· Greatly reduced fire hazard - Diesel fuel is much less flammable (exhaust manifold 350 degrees C cooler)
· No electromagnetic interference - (single throttle Diesel operation)
· Low noise level - (the result of two-stroke cycle and supercharging)

The ideal coaxial helicopter engine ...

"This unique engine concept is in several aspects superior to conventional piston engine configurations and bears a high potential for engine applications where compact design, high efficiency, good emission levels and smoothness in engine run are essential and production cost is not the major decision criteria.

Although the development challenges in terms of mechanical durability and manufacturability are significant, I am convinced that modern tools to support engine development and advances in manufacturing technology will make these development challenges surpassable.

Therefore I fully support CoAxe in their pursuit to realise this remarkable engine and wish them all the luck and success on their way."

Olaf Hiller
Head of Engine Design
AVL SCHRICK GmbH
11th December, 2009

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