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Old 22 May 2011, 21:54   #1
zip
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Country: USA
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Length: 7m +
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how fast is your rib?

took my 14 footer out in slightly choopy water and got up to 36 mph w/Yamaha 50 hp at 5300 rpm.

seemed really scary. felt like boat was gonna flip over. maybe if it was calm it wouldn't have felt so spooky, but it did feel like i was going pretty fast.
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Old 22 May 2011, 22:21   #2
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Country: USA
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Boat name: Blue Moon
Make: ribcraft 6.5
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In calm water, my 21' Ribcraft, powered by a 150 hp honda, tops of at 43 knots, or 49.5 mph. At the speed you were at, it sounds like the boat was chine walking, which can be pretty scarey. There are a number of threads in the rib forums on chine walking.

Bill

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Old 22 May 2011, 22:24   #3
zip
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chine walking?

Bill,

it was kinda wobbling from side to side. is that chine walking?

i've run it WOT on calm waters, and it is fine.
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Old 23 May 2011, 05:33   #4
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Yes Sir!

That is exactly what happened. Slow down, that can go from scary to downright dangerous in a spit second! Be safe, have fun!
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Old 23 May 2011, 05:38   #5
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Valiant 5.20M with 70Hp Suzuki - 44 knots - Think thats water speed not ground speed?
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Old 23 May 2011, 06:48   #6
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Country: UK - England
Town: Christchurch
Boat name: Sweet Chilli
Make: Ribcraft 585/Wetline
Length: 6m +
Engine: Honda 90HP Yam 4HP
MMSI: 235084532
Join Date: Jan 2011
Posts: 161
Ribcraft 585 with a four stroke Honda 90 will do 36MPH on the flat with a crew of 2.

This boat weighs more than a small planet. When I cut some holes in the console they were over 8mm thick. It is a nice solid boat and handles the sea better than me
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Old 23 May 2011, 07:10   #7
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Very fast.....
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Old 23 May 2011, 07:28   #8
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Quote:
Originally Posted by willfinch36 View Post
Valiant 5.20M with 70Hp Suzuki - 44 knots - Think thats water speed not ground speed?
Wow! 48mph with only 70hp. Impressive
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Old 23 May 2011, 07:44   #9
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Originally Posted by willfinch36 View Post
Valiant 5.20M with 70Hp Suzuki - 44 knots - Think thats water speed not ground speed?
How were you measuring this?
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Old 23 May 2011, 08:08   #10
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Fishermen and their catch size and rib owners and speed have much in common.

Welcome to fibnet
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