Along the lines of almost vaporware -- a bunch of these engines have been built by the inventor -- this concept(s) looks fascinating with its reduced internal friction. Combine that with Atkinson or Miller cycle, or opposed diesel in toroidal configuration...
Don't know what the weight penalty would be, but on long enough flights...
In any case, fascinating.
Don't know what the weight penalty would be, but on long enough flights...
In any case, fascinating.
