"Dave S" wrote

I would hope that I know this. I've built a rotary and had it running on an
airframe, alas not without problems (not with the rotary itself, but part of a
builders learning curve)

Then you are well aware of the problem of dealing with all of the excess heat
the rotary produces.

I am not an anti auto engine person; far from it. I like some of the things the
rotary brings to the table, in fact.

I am not sure that I would want to have to deal with the problems, though some,
including you, have been willing to.
--
Jim in NC