On May 1, 11:14?pm, Wayne.B wrote:
?Then again, the
original diesel engine ran on coal dust if my memory is correct.

Vegetable oil.

Rudolph Diesel designed his engine to run on vegetable oil, with
peanut oil and cottonseed oil considered prime candidates. At the
very, very, beginning it was all about bio-diesel.

Not that coal dust might not have been used at some point, but I
wonder how a dust could be injected into a cylinder of compressed air?
A liquid seems more ideally matched to the technical requirement.

Sadly, I suspect that pleasure boating will involve more sailing in
future generations. Not that sailing isn't a fine activity- it's only
sad from the standpoint that a choice will be restricted or
eliminated.