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Old 07 June 2005, 18:20   #1
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Propellor Question

I am in dire need of a new propellor for my Mercury 60hp.
Julie from Steele Dev have advised on a 13" pitch.
On ebay at the moment the same chap is advertising a "Propulse variable pitch Prop" and a "Black Max" 12" pitch prop in VGC. With any luck I can buy both for the price of one new one. As one who points his boat and goes, I know little about propellor pitch etc. Please advise?
Martyn
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Old 08 June 2005, 03:10   #2
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Martyn,
Whats on the boat now ( pitch & diameter?) and what speed and at what rpm are you getting that speed?
Kernow
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Old 08 June 2005, 06:18   #3
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Hi Kernow
I am getting approx 30mph max on GPS. Sorry dont remember the Revs at that speed but it certainly wasnt high.
I have just taken the old Prop off the only thing I can find stamped on it is 19 and A. It measures approx 5.5" from the tip of the blade to the centre.
It has certainly taken a battering in its time and has obviously been refurbished in the past.
Martyn
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Old 08 June 2005, 09:38   #4
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Hi Noddy
As I understand it (probably about to get 'orribly shot down!) The pitch is the distance a prop will move forward on one rotation, the higher the pitch the greater the distance covered, its a bit like gearing on a car. That 19 on your prop may indicate its a 19" pitch which I think would be too big for your 60hp, this would also account for your relative lack of top speed and failure to achieve maximum rev's, ( my 90hp came with a 17") There are many threads on here about prop choice the best advice is to try some and see.
regards,
Kernow
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Old 08 June 2005, 10:37   #5
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Many thanks Kernow
I have gone for the safe option and bought a 13" Prop from Steele Developments who have never let me down in the past.
Does anyone anything about these propulse variable pitch propellors?
Martyn
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Old 09 June 2005, 17:35   #6
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Quote:
Originally Posted by Noddy
Many thanks Kernow
Does anyone anything about these propulse variable pitch propellors?
Martyn
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Old 09 June 2005, 18:05   #7
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Na, I daint. It's Torqueshift, Wave.
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Old 09 June 2005, 18:23   #8
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that will be fifteen all then!
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Old 09 June 2005, 19:01   #9
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Feck, when was it love 15?
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Old 10 June 2005, 04:36   #10
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Just before it became 15 all.
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