I'd have thought it was pretty obvious really.
The oones I never understood properly were the Wankel engines with their
rounded sided triangle in a round hole with a gear on the inside and three
spark plugs.

Brian

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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Mike Tomlinson" wrote in message
...

Fantastic model of a 9-cylinder radial engine, shown operating.

Part 1: https://www.youtube.com/watch?v=qjnQKXNPsk4

Part 2: https://www.youtube.com/watch?v=R71Xhrkc3EQ

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