I find it interesting to look at these engines, and see whats going on, or NOT !

http://www.uavenginesltd.co.uk/products/

Thanks, Steve Carlisle


I never under stood why these guys did not go to oil cooled rotors.
They use a blower or charge to cool the rotors and this burns extra fuel.
The resultant over all  BSFC is horrible. These are cost no object engines.
Here is some BSFC data from their web site. The Mazda has no trouble
getting a .47 BSFC.

Here is an opportunity for someone  to build a turbo compound rotary with oil
cooled rotors. Range or endurance is essential for a UAV.

Paul Lamar


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