Model engines

has anyone on this group done any model gas or steam engine building or is this group more inclined for large machine repairing? ....

I'd like to make a model engine, perhaps a radial or a Stirling generator but so far making special tools, repairs and building larger useful rather than model machinery have taken priority. This afternoon I finished cleaning up from a project that began last October when two large oaks blew down in my yard. I have a home made sawmill to cut dead or fallen trees into lumber but it was built when they were smaller, the largest 12' long log weighed

2130 Lbs and I had to build a portable overhead gantry hoist to lift, move and rotate it near where it fell, then upgrade the sawmill, and finally cut boards and timber-framing beams.

The only model engine work I recall, and I've been here since the early

90's, was a Canadian who built a model Merlin and needed help with the hunting gear ratios.

Here is a photo of the last one I built

I designed this one from scratch and machined it from aluminum bar stock; including the carburetor, the only parts I didn't make were the 2 crankshaft ball bearings, the glow plug and the Allen screws.

It is a .60 cu inch disp. engine and burns Alcohol, nitro and 2 stroke oil mix.

It idles at 1700 RPM and drives a 12 inch 6 pitch 2 blade wood prop at

12,000 RPM

Rene

"Jim Wilkins" snipped-for-privacy@gmail.com on Wed, 1 Sep 2021 22:39:46 -0400 typed in rec.crafts.metalworking the following:

Somewhere around here I have plans for a steam powered model Aeroplane, design from before The War. "Some day ..." maybe.