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Old 02-26-2021, 08:06 AM   #655 (permalink)
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Originally Posted by Bicycle Bob View Post
No turbocharger is mentioned, even for high-altitude work. The Napier Nomad gave the best mileage in the 50s, and was more like a turbo jet with the peak temperatures moderated by using pistons for the initial expansion.
Cylinders that are not in use still create friction with this setup. I don't think anybody liked that 4-6-8 Cadillac option.
Not in that article, but it is there.

Piston-Powered RED A03 V12 Engine
The A03 has a multi-stage turbocharger and can run on Jet-A fuel, kerosene, or biodiesel. It's an extremely high-efficiency design with low fuel consumption and increased reliability over existing piston engines.
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