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Old 27 November 2002, 15:35   #1
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Torque shift prop

came across this or similar design at the boatshow once, it does seem to be a superb solution for the age old problem of what prop size

would seem to give your boat an automatic gearbox so to speak

they only seem to be available for larger outdrives ?

http://www.land-and-sea.com/marine/t...rque-shift.htm
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Old 27 November 2002, 15:43   #2
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Look good, but I would think twice about spending $1000 on a prop. Knowing me every log, rope, rock would make a bee-line for me

Gary
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Old 27 November 2002, 15:51   #3
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Land and Sea have failed to reply when i have contacted them in the past about shiping items to the UK.

[disclaimer]
That's not to say they won't - just relaying my experience.
[end disclaimer!]

Daniel
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Old 27 November 2002, 16:00   #4
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I reckon

that if someone could produce a sensibly priced similarly designed prop that has adjustable pitch, ( not necessarily a fancy automatic adjustment , but manually adjustable to suit different uses ) they would make a killing

but heh what do I know

anybody know of such a prop other than the pyranah nylon job with removable blades ?
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Old 27 November 2002, 16:01   #5
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Thanks for the lead Matiboy. I have emailed them for a recommendation of the right model for my Yanmar 300/Bravo 2X combo.

Sounds almost too good to be true. Anyone had experience of variable pitch props?
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Old 27 November 2002, 18:32   #6
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Don't you lot read the other forums here?

John
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Old 27 November 2002, 18:38   #7
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Am i right in saying theat these only work with Stern drives andnot Outboards
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Old 28 November 2002, 06:05   #8
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Not according to the web site, Stuart. They have them for inboards and outboards.
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Old 28 November 2002, 06:11   #9
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Quote:
Originally posted by John Kennett
Don't you lot read the other forums here?

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Usually, but missed that one, John. Thanks for the link.
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Old 28 November 2002, 06:45   #10
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He he!

A bit spooky the same thing coming up apparently independently in two threads at the same time!

These props look like superb bits of kit, if they're anything as good as they say. The variable shift should get round the gearbox wrecking upshift of the normal two speed versions.

I would be interested to see how they cope when driving a RIB on the throttle through big waves though.

John
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