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[PSUBS-MAILIST] How is it propelled?
Usually, we see a screw at the very stern, or on thrusters appended
all over the subs. But is this the only way?
There's a Canadian chap who's selling a flexible paddle for canoes:
the canonist pedals a bicycle-like thing and the paddle flips back
and forth. I'd kicked this idea around, in the 60s, with an eye to
hanging four of them on the stern of a teardrop. Control totally
defeated me: I couldn't figure out how to get a smooth flow over
the rudders and planes abaft the paddles.
We have also pumpjets, and they can provide steering if one is
careful with the design of the shroud.
In that last Star Wars movie, there was a sub with a flexible screw.
Did anyone else look at that and wonder if it would work?
Mike
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