Thrust specific fuel consumption - Wikipedia, the free encyclopedia
Most gas turbine's efficiency is measured differently from engines that produce power through a shaft.
The huge Mann IC 2 strokes are listed at 54.4% in the Wiki article on BSFC.
The best gas turbine is a turbo fan. They produce huge amounts of thrust pressure, enough to move large rock weighing many hundreds to thousands of pounds that are positioned behind the turbine.
The compression ratio of most turbines is less than 7 to 1 which is one of the reasons they are not that efficient.
It would be difficult to get any patent on a turbine powered vehicle since that was done 60 years ago, possibly longer.
I Wonder what kind of fuel mileage Jay Leno gets in his turbine powered motorcycle. I'll bet it is not good.
regards
Mech