Hi Gadge, bigted and Jack
Yes it's interesting engineering ,I've seen a few Patents from about 1920 with opposed piston engines.
When I see the video of the Chamberlain 8 running the phrase Smoke 'Em If You Got 'Em comes to mind.
The opposed piston engine has mainly been used in trains, tanks and marine use.
https://en.wikipedia.org/wiki/Opposed-piston_engine[video:youtube]
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Cheers
Max.
