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Old 08 December 2005, 16:50   #11
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Country: UK - England
Town: Reading, Hants
Boat name: Juicy
Make: Sealine F43
Length: 10m +
Engine: 2 x 370hp
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Join Date: Sep 2005
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now that would be a sight to see

yes cavitation plate it is, oooops what a birk!! playing with my new laptop here so brain not totally engaged
Quote:
Originally Posted by Dirk Diggler
Can't imagine what situation that would be, might be worth trying them on the cav plate though!
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Old 09 December 2005, 06:08   #12
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Country: Norway
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We used to have a 5.5 Bombard rated for 90 hp. We had 115 Johnson 2-stroke. It did 42 knots on GPS when two persons on board. This was the speed we wanted for cruisingspeed. We always wanted more hp and looked at 150hp so that we could cruise at 40+ knots.
Ask the builder if the transom can hold the extra hp, so you don`t break anything. When bying a new boat, you can specify the transom yourself.
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Old 09 December 2005, 08:02   #13
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Country: UK - England
Town: Leicester
Boat name: Vixen
Make: Ribcraft
Length: 6m +
Engine: Suzuki OB 175
MMSI: 235071839
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Will F,

Our club currently runs a Delta 5.5 with a Yam 100 hp 4 stroke. We wanted the F115A but didnt have the money. Its a heavy motor and we pay for this due to the whole thing being stern heavy. We also used the the Yam stock prop which was well out in terms of pitch for the speed we needed and ability to plane with 6 divers and 2 crew.

The biggest difference to date has been going down in pitch and using a 4 blade prop. We particularly noticed this when you are just off the plane and climbing the front of a wave, previously it was like slowly driving into treacle.

We will be fitting lifting foils but I'd like to wait until some new stock of "Tigershark" Vortex groove foils arrive and try them.
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