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Old 22 August 2008, 17:10   #1
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Country: UK - England
Town: South Coast
Boat name: No Name
Make: Ribx-450
Length: 4m +
Engine: Outboard 60hp 2 Merc
Join Date: Apr 2008
Posts: 108
What will it do

My 4.5m rib today pulled 41.5 mph on the gps with two adults ooppsne child and approx 20l of fuel. (rib-x 450 boat)

Running a mercury 60 with 14 pitch prop at 5200 rpm.

I thought that was quite good.............

Anyone managed to get more from a 4,5m rib?

Chris
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Old 27 August 2008, 06:04   #2
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Country: France
Town: Cannes
Boat name: midkat 550
Make: apoge
Length: 5m +
Engine: 2x50 Tohatsu
Join Date: Jan 2008
Posts: 126
the speed is high, but 5200 rpm is a bit low, I would suggest to test with a 1" lower pitch prop to reach 5500/5600
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Old 27 August 2008, 09:40   #3
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Country: UK - England
Town: Brum
Boat name: UTV
Make: zodiac FR
Length: 3m +
Engine: 2 stroke 15hp
MMSI: 999
Join Date: May 2003
Posts: 379
38 mph with 80 l of fuel, 2 adults, 1 child. Prop pitch 13" at approx 5300-5600
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