"Bill Farina" wrote in message
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"John Cairns" wrote in message
. ..

"Bill Farina" wrote in message
...

"John Cairns" wrote in message
...

"Bill Farina" wrote in message
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I'm in the process of building an e-boat and am looking for a ~19 inch
variable pitch prop along with probably the shaft and any controls
that may
be associated with it.

A friend of mine told me that Volvo makes one, but none of their
dealers
seem to know anything about it.

I have been told by others that older fishing boats used to use these,
but were unable to supply a manufacturer name.

If anyone knows of a source, it would be greatly appreciated.

Luke, Maxprop, Autoprop, Martec make feathering props with adjustable
pitches. They give you a recommended pitch, you make any necessary
adjustments. Pricey, very pricey in the case of the Luke, which are
one-offs.

http://www.peluke.com/Propellers/propellers.html

http://tinylink.com/?pbh5yrcpXO

Was that what you were referring to?

Exactly, thanks.

Now I just have to begin saving my pennys. :-)

You never mentioned why you wanted a feathering prop. Have you considered
a folding prop? Folders work better under sail than feathering
props-considerably less drag than feathering props-and even the best,
like Gori, run about half the cost of a feathering prop.

http://tinylink.com/?khyWB1cXEC

I have a Gori two blade standard folder, sweet.

John Cairns

I'm in the process of converting a 38' full keel Seafarer ketch from
diesel to electric. I have 2 electric etek motors that I'm going to hook
up inline via a belt drive to the prop shaft. The working hp of the two
motors is kind of vague and I'll probably be running on just one motor
most of the time. Depending on the configuration, the working hp
equivalency can be as much as 2-6 times the electrical hp (which is 8 (15
in short bursts) per etek). I want to have the flexability so that I can
tweak the prop to optimum efficiency.

Then you are talking about an automatic variable pitch prop, I read a little
about it. Has to be $$$$$$$$$$$$$$.
For the time being, I'll stick wif me diesel

Link provided by Bart Senior:

http://www.helseth.no/eng_products_3h.htm

John Cairns