[Electric Boats] Re: chain-driven outboards?

 

Thanks for that, Tom.
Interesting. Seems they have the reduction gearing done at the top,
allowing a smaller lower sprocket.
This could also apply to a modern toothed belt drive, which would be
more durable in the water.
Another possibility is to have the prop blades as an integral part
(spokes) of the lower sprocket, allowing a lower profile presentation to
the water current.
Note also the size of the prop compared to the overall size. Seems that
the design might have been unhampered by a lack of ICE design
characteristics mindset.

John
1a. Re: chain-driven outboards?
Posted by: "Tom" boat_works@yahoo.com boat_works
Date: Thu Apr 26, 2012 12:28 pm ((PDT))

It looks it has been done at least once. About 130 years ago.

http://archive.org/stream/electricalboats01sachgoog#page/n18/mode/2up

-Tom

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