Jim Carriere wrote:
wrote:

The rotary engine site is pretty interesting. Back in school my
automotive engineering professor sort of ragged on the rotaries for
various reasons, including higher fuel consumption. It is interesting
that the rotaries on that website run 0.50 to 0.55 bsfc. This isn't
great for a gasoline four stroke engine, but compared to a two stroke
ultra light engine, it would be very nice.


0.5-0.55 is not bad for a small gas turbine either.

Sort of an apples to oranges to tomatoes comparison. Food for thought.


Only their 2 smaller air cooled rotary engines have the 50 hours TBO and
one 120 HP twin rotor is certified for manned flight in Europe. In any
case, I'd bet they're bloody expensive...

Tony