...Back in the late 1960's Airfix also had a "Maudsley Paddlewheel engine". Anyone recall that one? or have one?
Surprisingly, that was the only one I
did have!
Worked quite well, too, from what I remember. Lasted for a fair length of time. Unfortunately, it was the victim, not of the usual destructive urges of youth but rather of the chemical properties of sewing machine oil! I found out the hard way that you should never use real oil for lubricating plastic gears and whatnot. It finally ate its way through the joint between the wheel and the crankshaft. Didn't do much revolving after that!
I'd love to see it again in kit form. I think graphite would be my lubricant of choice today. Of course, I'd probably also be able to build it better after nearly half a century's more practice with modelling!