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Old 12 October 2003, 18:21   #11
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Country: UK - England
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Length: 6m +
Engine: PCM 5.7l
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Hey i apologise to you Daniel.

I think your second explanation was better though. As for my friends boat i think the prop will have alot to do with the problems. Maybe he should experiment with different props.

Definatly though a 45 on a 5m boat would be criminal especially if you want to carry around divers. Im currently selling a Valiant v-490. Matched up to a yamaha 60 it is perfect however being a valiant (PVC tubes) it doesnt weigh much.
On somthing like a ribcraft you would want more power.

I always think that 3/4 of the manufacturers maximum is about right unless you are going to be lugging around lots of divers and their equipment.
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Old 13 October 2003, 15:45   #12
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Country: UK - England
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Boat name: Sharmel
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Engine: 45hp Honda / 4hp Johnson
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Have a look at this site http://www.hondaoutboard.co.uk/ then go to Techtalk/Choosing right HP, look at the BF50, they recomend it for a 5.5m Rib, are they talking bllx ??
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Old 13 October 2003, 16:46   #13
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Country: UK - England
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In a word... Yes! They seem to be recommending the absolute minimum. They only seem to have got it right on the two biggest engines. Maybe it's a marketing ploy to encourage people to power up after their first season.
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Old 13 October 2003, 16:52   #14
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If you put a 50 hp engine on a delta 5.5 it wouldnt move, you may get away with it on a lighter boat though
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