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Old 13 May 2008, 15:37   #31
Country: UK - Wales
Town: Barmouth
Boat name: Blue Marlin
Make: Ribcraft
Length: 7m +
Engine: Yanmar 315/Bravo 2X
MMSI: 235020218
Join Date: Jun 2003
Posts: 827
Originally Posted by jwalker View Post
Given the remark from the builder......that the twin engines are short......
If you are thinking about repowering, check that whatever you want to put in there instead will fit - there doesn't seem to be much room for expansion in that box. I assume that the rearward position of the engine is fixed by the outdrive leg - so a larger engine will need to extend further forward in the boat.

But look on the bright side, you won't need a heater in your cabin to heat it!!


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Old 16 May 2008, 18:37   #32
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Country: UK - England
Town: Tisted Hampshire
Boat name: Hot Lemon
Make: Scorpion
Length: 8m +
Engine: Yanmar diesel
MMSI: 235
Join Date: May 2002
Posts: 774
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Trim Tabs

We have just fitted Bennett trim tabs to our 8.5 Humber with 260 KAD44 engine no change in top speed but it has brought the bow down for better forward visibility and in a cross wind situation we can trim out list .
I took the boat to our weighbridge last year and total was 3.5 tons with the trailer plate stating 500kg so boat with full tank 3 ton . I would expect the Redbay to be heavier.
Top speed best ever seen with light load and smooth water 35kn typical top speed 32 kn . We are reaching our max rev easily so I feel we could change our prop (duoprop)to bring revs down. Accelaration is extraordinary we were level to about 20 knots against a 6m Carson with 90 four stroke then the Carson started to pull away a bit . Hope this helps.
Trim tabs were about £360 all in and were easy to fit , I understand thta the QL ones require a very flat transom otherwise they will jam , the Humber transom is not that flat !
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