"Bob Eager" wrote in message
...
On Fri, 11 Jun 2004 11:54:43 UTC, John Laird
wrote:

Accepted definitions are a bit vague, often having Wankel engines as
alternative meanings for "rotary". However, I doubt you'd want a true
rotary engine under your bonnet ;-)

I saw a car with a Rolls Royce Merlin in it, once. Isn't that rotary?

No. In-line water cooled.

(I'm not actually sure, I really am asking)