In article ,
Doctor Drivel wrote:
It's mainly because their fuel efficiency is, and always will be, poor.

This idiot is at it gain. The fuel consumption is not poor when run at a
constant speed high revs at it "sweet spot".

It is still poor when compared to a piston engine designed to do the same
thing. It it were better, lots of upmarket generator makers - like Honda -
would already be using it.

--
*Out of my mind. Back in five minutes.

Dave Plowman London SW
To e-mail, change noise into sound.