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otnmbrd
 
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Default Kortz nozzle vs. prop walk



Rick wrote:
otnmbrd wrote:

DANG ! This is interesting for a number of reasons:
A. You experienced propwalk with a Kort nozzle.
B. You experience it at depth but not at the surface.



A: Which leads me to believe that the force, while limited, is also due
to the precessional force created by a rotating mass, perhaps excited by
pitching forces resulting from hull shape in the case of a submersible.


Possibilities .....
Problem is we would have to wonder if we could fairly compare the two
hull types and environments .... still, interesting.

B: There are far more stronger forces acting on a submersible on the
surface.


G True, you're generally not playing with these in calm waters.

otn

Rick