For Engineers

Scuttlebutt
1

Anybody here familiar with this type of engines?

Alpha model D, from 1915, 14 hp.:

image
image843×1124 134 KB

Photo: Magnar Lyngstad

PS> It had an open crankcase.
Intake and exhaust valves were on the opposite side:

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On the other end of the spectrum; new and improved equipment for the future:

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Engine manufacturers worldwide are busy introducing newly developed models these days: