Hans Holbein added these comments in the current discussion du
jour ...

Beats me, I was making a joke. Since airplanes use nautical
miles, I thought maybe a cycle powered by a radial aircraft
engine might also. As to range, don't know how many
gallons/hour one of those old radials might consume.

On my combat simulator program (Sturmovik) I can choose Kmh, mph
or KIAS. Are nautical miles base for the latter?
I think it can mean knots indicated airspeed but am not sure
about it.

Had to Google KIAS, Knots Indicated Air Speed. I would say, yes,
nautical miles or knots would be the unit for this. Since I am not a
pilot nor do I play simulation games, I don't know if the one you
refer to differentiates between ground speed and indicated air speed
but whether it is in statute miles/hour or nautical miles/hour or
knots I don't know.

I dont think this Radials consumes to much.
With the estimated 10l he might come about 50 miles I believe.

This particular radial seems to be small and perhaps one prior to the
beasts of WWII but I doubt that ANY aircraft engine is going to be a
high mileage engine in normal use, it's displacement is just too
large. But, without knowing details, no intelligent comment can be
made here.

--
HP, aka Jerry

"Government is NOT the solution to our problems, it IS our
problem!" - Ronald Reagan