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Old 04 September 2006, 06:23   #11
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Country: UK - England
Town: helston
Boat name: pressman
Make: Carson 900
Length: 9m +
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Join Date: Jul 2005
Posts: 373
The dive boat we are building at this time will have 150hp the sea trials will include kitted up divers so we will post some results

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Old 04 September 2006, 07:00   #12
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Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,837
Originally Posted by Divegirl
The pacifics certainly look like a good choice. Can anyone recommend how much hp I would need to take 5 divers and kit and actually achieve some speed?
Del Connelly used to operate two P22s out of Weymouth during the mid to late 90s. One with 115 hp John Deere and the other a standard 145 hp Mermaid. Cruising speed was a relaxed 18 - 20 knots with the 2 tonne boat weight making short work of waves and other boats wash but very comfortable for the divers.

Old Spice has 200 hp diesel giving 30 knots lightly loaded or 23/24 knots with 5 divers and all the coding equipment which is quite extensive, takes up lots of space and is heavy. Thankfully a P22 has a huge volume of space under the deck (which you can actually crawl down into) to store all this stuff. Do not underestimate the weight or space you will need for the coding equipment - liferaft, second batteries, life jackets, two anchors etc
Fuel use is lpm at 20 knots rising to 1.5 lpm at 30 knots.



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