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Old 24 April 2007, 03:59   #1
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Country: France
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Boat name: labrax II
Make: HUMBER 600 DESTROYER
Length: 6m +
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Humber 600 df 140 prop size

Hello,

I tried my new rib last monday, and the propeller is too short.

The prop is a 14X19.

Max speed 36knt with 6300 rpm.

If someone with the same boat can help a poor french ribman...

I think a 14X21, or perhaps a 14X23 could be a better choice.

Thanks

Antoine
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Old 24 April 2007, 04:11   #2
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Country: UK - England
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6250 is the max revs for that engine so it sounds like its reving about right at wot....
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Old 24 April 2007, 04:14   #3
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The problem is that i can push more the engine...
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Old 24 April 2007, 13:08   #4
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Quote:
Originally Posted by antoine View Post
I tried my new rib last monday, and the propeller is too short.
It isn't supposed to reach the bottom though

Sorry I could not resist that obvious and extremely poor joke
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Old 24 April 2007, 13:46   #5
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Send a message via AIM to Top banana
I run with a 14x21 ally on my 6.2 which carries some weight, 37knts at 6,000 revs WOT. you dont sound to far off the mark considering that mine is a sports hull,
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Old 24 April 2007, 16:20   #6
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Country: UK - Channel Islands
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Bonjour,

I changed from a 14x19 on my suzuki df 90 to a 14x21 and it reduced the revs by about 600. Combien coute le propulseur 14x21 en France (et le 14x22 inox)?

Keith
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Old 24 April 2007, 16:53   #7
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prop

hi i have same new humber with a yamaha 115 four first trip last week and am getting identical performance
let me know how you get on if you do change prop
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Old 27 April 2007, 15:33   #8
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if your boat is not able to exceed 36 knots sell it my friend or buy an Italian boat

sorry

A+ Adonf
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Old 28 April 2007, 03:48   #9
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Country: France
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My dear Adonf,

I hoppe that you will never say one more time that you don't speak english...

For our trip, you will speak and i will drink.

Antoine
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Old 28 April 2007, 04:36   #10
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I used my friend google ;

For our trip, you will speak, it's better your boat is too slow but it is beautiful

A+ Adonf
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