Quote:
Originally Posted by unclebilly
That website was from 2011... about all they could do to make this even more needlessly complicated is to add rotary valves of some kind.
I have actually seen a Fairbanks Morse version of these. There was a wrecked boat washed up on the beach in Margarette Bay in Smiths Inlet back in 1992 when I was commercial fishing there. I remember it specifically as an opposed Fairbanks Morse. I’d never heard of this type of engine before.
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Yupp. US gave copple of boats to Russkies who then copied it and used it for decades. Design has been around forever, periodically dusted up and served as "breakthrough". I never heard of any successful application save from (perhaps) FM design to be used in U-boats where packaging constraints would make other design non-applicable.
Scavenging will always be an issue in two-stroke. You either overscavenge (which gives power) our under-scavenge (which will bring emissions but also power down )
These locos are powered by Russian FM copies: