Re: [PSUBS-MAILIST] Propellers

[Ray Keefer <psubs2001@yahoo.com>]

Hi Juergen,

Sounds like it would reduce incidences of injury by
making it harder to hit someone with the blade edges.
I think it would still be able to suck line, rope and
kelp into the blades for entablement. All they
eleminated was the blade edge snagging on somethng.

Does it improve performance. That would depend on the
length of the ring and its shape. If shaped like a
kort nozzle then yes, it would be more effecient. Just
a short flat ring, the not very. The idea would be to
force the prop wash that radiate off the blade edges
into a useful direction.

Regards,
Ray

--- Juergen Guerrero Kommritz <groplias2@yahoo.com>
wrote:

> Dear Psubers
> I was yesterday in the fair of Hanseboot and was
> looking to a "new" propeller the RingProp a
> propeller with a ring around it.  It is suposed to
> avoid entanglement and to make the propeller more
> safe for waterskiers, divers and anglers.
> It is also supoused to maximize the energy transfer
> from machine to water; more trust.
> Does any body has some experience with this
> propeller?
> I find it is interesting for the Psub community.
> Best wishes
> Jürgen
> 
> 
> 
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