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Old 25 March 2010, 14:03   #21
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Country: UK - England
Town: Staffordshire
Boat name: Pacific 9134
Make: Halmatic
Length: 6m +
Engine: 300hp Suzuki
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ribtec camel trophy 655

honda 130hp

35-40 depending on passengers lol

just a nice cruising pace
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Old 25 March 2010, 15:10   #22
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Country: UK - Wales
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Make: Vipermax 5.8, SR4.7
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Quote:
Originally Posted by GordyP View Post
As for 91.56 knots
Nah, twas only 91.56mph.
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Old 25 March 2010, 18:47   #23
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Make: avon searider
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Quote:
Originally Posted by Cookee View Post
91.57mph (average)
The words very jealous come to mind.
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Old 25 March 2010, 20:11   #24
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Country: Greece
Town: Pireus
Boat name: Joanna
Make: marin stiletto 737
Length: 7m +
Engine: Evinrude ETEC 250
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hydrosport 808 + etec 250 56knots/.5500rpm not jack plate . 23' 4 blade cyclone propeller
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Old 25 March 2010, 21:09   #25
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Country: UK - Wales
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Make: Humber
Length: 6m +
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Quote:
Originally Posted by Erin View Post
Osprey Vipermax 6.5. Suzuki 200. Antifoul. 2 persons and 200l fuel. Touching 47kts in right conditions.
Haven't even thought about antifoul. I presume it must knock a knot or two off? Due to friction?
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Old 25 March 2010, 21:46   #26
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Country: UK - Channel Islands
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Boat name: La Frette
Make: Osprey Vipermax
Length: 6m +
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Yep, I did notice a slight difference. Haven't managed to work out excatly how much though.
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Old 25 March 2010, 21:46   #27
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Country: UK - Channel Islands
Town: Guernsey
Boat name: Elle
Make: Scorpion
Length: 8m +
Engine: Yamaha F350 V6
Join Date: Sep 2009
Posts: 74
I knew Cookee would win!!
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Old 25 March 2010, 23:08   #28
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Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
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Quote:
Originally Posted by HUMBER P4VWL View Post
Haven't even thought about antifoul. I presume it must knock a knot or two off? Due to friction?
Yep but as someone else pointed out still quicker than a "dirty bottom".
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Old 26 March 2010, 10:06   #29
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Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
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Length: 10m +
Engine: 2xYanmar 260 diesels
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Quote:
Originally Posted by Downhilldai View Post
Nah, twas only 91.56mph.
91.57 actually!

That was recorded on Coniston Water as an average of 2 runs over the measured Kilometre, and the one way was measured officially at over 92, and I briefly saw 93 on the GPS on one of the runs! It was very well set up, and despite a slight wobble in the low eighties not hard work to keep it all going in the same direction - don't forget I have been racing this hull for quite some time, and I was regularly seeing mid eighties offshore, so a faster prop and some flattish water was all I needed to see some better speeds.

ps the video is still on our website if you want to see what it looks like at that speed!
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Old 26 March 2010, 10:12   #30
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Country: UK - England
Make: extreme 24
Length: 7m +
Engine: merc 6.2 320hp
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62.9mph half fuel,2 peeps, normal weekend clutter on board
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Old 26 March 2010, 10:13   #31
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Country: UK - Channel Islands
Town: Jersey
Boat name: Archangel
Make: Ribcraft
Length: 6m +
Engine: ETec 225
MMSI: 235063789
Join Date: Sep 2008
Posts: 1,005
Ribcraft 6.8 with standard 225 ETec. With a 21" Raker prop - 45kts, with a 19" Rebel prop - 47kts. There's a big difference in accelaration and ride between the two props. Will cruise at 40kts and consume about 62 litres an hour with the Raker prop. The boat's got Coppercoat antifoul but I don't think it slows the boat down much.
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Old 26 March 2010, 19:00   #32
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Country: UK - Scotland
Town: Stornoway
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Make: BWM
Length: 6m +
Engine: 250hp HondaV6 petrol
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Posts: 2
think the engine is too heavy
BWM 6.9 m with a honda 250 V6 (Carburated) 54 knots
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Old 29 March 2010, 07:13   #33
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Country: UK - England
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Boat name: Knot a RIB
Make: Avon Typhoon
Length: 4m +
Engine: Yamaha 25hp
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Posts: 868
Welcome Keith to RIBnet

Mine goes faster than I am yet confident to try but hopefully I can let you all know later this year after a few more successful trips under our belt
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Old 26 April 2010, 20:56   #34
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Country: Greece
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Make: marin stiletto 737
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Quote:
Originally Posted by keithjeek View Post
BWM 6.9 m with a honda 250 V6 (Carburated) 54 knots
is with an outboard?
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Old 27 April 2010, 11:37   #35
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Country: UK - Scotland
Town: Glasgow
Boat name: Pacific22
Make: Halmatic
Length: 6m +
Engine: Volvo Penta D6 350
MMSI: 235068452
Join Date: Aug 2008
Posts: 83
Pacific 22
200HP Ford Mermaid Turbo 4 @ 2700 - 2800 rpm
29kts, 30 if its flat calm and the boat is light.
Prop - not sure
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Old 27 April 2010, 13:23   #36
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Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
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28 hp produces 5.5 knots at cruising speed and 6.99 knots under sail flat out. 12.5 knots through Alderney Race when things were happening really quickly Hoping to get a folding propellor shortly which will add 1/2 a knot under sail, yippie

However we have been down to 2 knots off the back of the IOW fighting the tide trying to get home.

Fuel used about 1.5 litres. No not a mile, but an hour

Pete
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