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Old 08 September 2005, 06:35   #1
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Advice Needed On Bow Angle

Soom advice needed from experts and I dont know if you can tell from the pictures but when Iam traveling along I get the feeling that the bow is possibly to high and maybe a bit on the lite side with the trim set at what feels like the optimum just over half way out if that makes sence she feels high but if I bring the trim in she feels slugish and heavy on the steering hope some one can give me som help or suggestions on this thanks in advance
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Old 08 September 2005, 08:51   #2
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Looks fine to me......
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Old 08 September 2005, 09:04   #3
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Hi Milan

It doesn't look that much different to the angle my 550 sits at when under way.

Have you tried sitting at about 25 knots and trimming up and down whilst watching your rev counter?

Might give you an indication of your correct trim.
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Old 08 September 2005, 09:08   #4
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rule of 3rd

two thirds out 1 third in the wet
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Old 08 September 2005, 09:25   #5
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Quote:
Originally Posted by Phil Chitty
Hi Milan

It doesn't look that much different to the angle my 550 sits at when under way.

Have you tried sitting at about 25 knots and trimming up and down whilst watching your rev counter?

Might give you an indication of your correct trim.
Yes tried that Phil she likes to be at 4000 revs does about 26- 27knts at that but trimming up and down does not seem to bring the bow down it just goes heavy on the steering when to far in and cavitates when trimmed to far up
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Old 08 September 2005, 09:26   #6
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Quote:
Originally Posted by RIVA
two thirds out 1 third in the wet
How does it look to you Riva would you say it was balanced or to heavy on the transom
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Old 08 September 2005, 09:59   #7
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looks ok to me
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Old 08 September 2005, 10:23   #8
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The pictures which you have shown shows the boat looking well balanced. However surely their cannot be a certain answer to how much trim to you use, as this would depend on the conditions in which you are operating.

The reason for the boat feeling heavy with the engine trimmed is beacuse the V of the hull is cutting through the water plus you have a more wetted surface. This should only be applied when the vessel is heading into a head sea.

Simon
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Old 08 September 2005, 11:49   #9
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Quote:
Originally Posted by Simon Hawkins
The pictures which you have shown shows the boat looking well balanced. However surely their cannot be a certain answer to how much trim to you use, as this would depend on the conditions in which you are operating.

The reason for the boat feeling heavy with the engine trimmed is beacuse the V of the hull is cutting through the water plus you have a more wetted surface. This should only be applied when the vessel is heading into a head sea.

Simon
Cheers for that Simon but can I just explain that when Iam standing at the wheel looking forward the bow looks real high that said it might just be the sheernes of it but as for the bow feeling lite that seems to be more of a gut feeling than anything else some one suggested trim tabs would this possable be an answer or even fitting fins to the cavitation plates as some one else suggested or am I just fussing over nothing

PS. finding the optimum trim leval is no proplem its this bow thing that bothers me
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Old 08 September 2005, 12:12   #10
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I think you will find that it is the height of the bow. I dont think trim tabs will benefit you at all as these serve the same purpose as the engine trim. With regards to fins on the plate again what for what purpose as the boat looks perfectly balanced.
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