"
It sounds to me like that may make for a very fuel efficient
aircraft with good performance. Any reason why it can't be done?

Nope, and when they are out there at reasonable costs, lots of people will
be wanting to get ahold of them. Problem now is, they have been going to
be
available to the public in the next six months, for the last five years.
Get my drift?

You're saying that they just aren't available, not that they wouldn't be
efficient when they're available, right?


Some people are home-brewing 4 stroke diesels, from cars, and had pretty
good luck. I recall one being in a pusher.

I thought those had some weight issues.

Sounds like a damn good reason to me! :-)

True, but that issue can be fixed.



One of the big reasons that people want diesels, is that they could burn
the
jet fuel that is at all major airports, and lots of minor ones. g

Yea, but standard diesel is much cheaper.