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Old 16 December 2006, 13:50   #121
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engine is starting to loosen up a bit now and is 48+ knots (not fully trimmed up) now with full fuel and two on board

so once the diet starts on jan 1st I should see 50 knots next year!!


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osprey vipermax 6.5 with opti 200

23 inch prop doing 46-47 knots but only revving just past 5000 rpm

usually full of fuel and 2 plus 2 kids on board

still need to try a 21 inch prop to see if that allows to rev more and perhaps push the top end up!

cruises nicely at around 35-38+ mph at around ~3.7-4k revs and is returning 4.3 miles per us gallon overall as an average
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Old 16 December 2006, 18:43   #122
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(not fully trimmed up) ??

So what happens if its fully trimmed up , Just learning here cos I thought max speed was always achieved fully trimmed up when set up properly ,

Hopin iam wrong and there is some hidden speed left in my boat
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Old 17 December 2006, 03:57   #123
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(not fully trimmed up) ??

So what happens if its fully trimmed up , Just learning here cos I thought max speed was always achieved fully trimmed up when set up properly ,

Hopin iam wrong and there is some hidden speed left in my boat
There is Ian, she'll go much faster. Just jump overboard!
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Old 17 December 2006, 16:58   #124
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Happy christmas Jeff
I will try that
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Old 20 December 2006, 11:41   #125
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6.0M Cobra Nautique 150HP Optimax 120litres of Fuel, 2 people & a Dog
19pitch Prop 48mph (Engine Trimmed up)
Trying a 21Pitch Prop next season
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Old 25 December 2006, 07:44   #126
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Originally Posted by ian parkes View Post
(not fully trimmed up) ??

So what happens if its fully trimmed up , Just learning here cos I thought max speed was always achieved fully trimmed up when set up properly ,

Hopin iam wrong and there is some hidden speed left in my boat
I think it's something like a 'go faster' haircut?
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Old 25 December 2006, 08:04   #127
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Haircut

Haircut How would you know about that ?
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Old 25 December 2006, 08:09   #128
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6.0M Cobra 150HP Optimax
19" laser II 50.9 mph, 30litres of fuel, 2 people, inland flat lake
17" Revolution 4 46.5 mph 150 litres fuel, 3 people, 2 dive kit, calm Largs sea



Hoping to get up to Mull for the New Year weekend - Oban to Tobermory via west cost, Staffa and Calgary Bay > 78 miles> Just praying for good weather :-)
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Old 28 December 2006, 06:04   #129
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Searider 5.4 mod 90hp Yam 2stroke. 39.8 knots with 1/2tank (26ltrs) 1 on board flat calm of the thames!!!!!!
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Old 22 July 2007, 11:59   #130
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tornado 5.8

tornado 5.8 135 merc, rev 4 prop, 5300 rpm, 2 up 100 ltrs liquid gold.
47 knots
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