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  #1  
Old 02-14-2012, 11:24 AM
dina dina is offline
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Dynamic Trim
HELLO
I need standard For The Range OF DYNAMIC TRIM FOR PLANING BOAT?
please help me
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  #2  
Old 02-14-2012, 11:43 AM
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daiquiri daiquiri is offline
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Didn't know there was a standard for that.
A closest relevant ISO standard which comes to my mind might be the ISO 11591 - Field of Vision From Helm Position.
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Old 02-14-2012, 08:56 PM
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Ike Ike is offline
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I don't think there is a standard because dynamic trim is dependent on a lot of variables, the hull shape, diehedral, Longitudinal CG, and more. Really, it depends on the hull design.
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  #4  
Old 02-15-2012, 01:20 AM
dina dina is offline
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thanks diquri
but my boat is highspeed
do you know any standard for high speed craft?
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  #5  
Old 02-15-2012, 01:56 AM
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daiquiri daiquiri is offline
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Dina, standard for what? Please explain a bit better what you are looking for.
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Old 02-15-2012, 04:35 AM
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Leo Lazauskas Leo Lazauskas is offline
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I agree with the posts do far. There is very little in the way of standards, and we need
more information from you, Dina.

I think that the best you can do is to read:
The Specialist Committee on High-Speed Craft,
Final Report and Recommendations,
Proceedings of the 26th ITTC, Vol I.
Rio de Janeiro, Brazil, 28 Aug. - 3 Sept. 2011.
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  #7  
Old 02-16-2012, 12:34 AM
dina dina is offline
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I build a boat
and tested it in calm water
I am so Concerned about stability
The range of dynamic trim was between3-17
I want standard that say it is good or no
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  #8  
Old 02-16-2012, 12:39 AM
Ad Hoc Ad Hoc is offline
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Quote:
Originally Posted by dina View Post
I build a boat
and tested it in calm water
I am so Concerned about stability
...
What size of boat, L/B..what power...what weight..and what speed etc etc

All these shall help in understanding your concerns.
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  #9  
Old 02-16-2012, 12:57 AM
dina dina is offline
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weight:880
L/B :26.875
speed: 50knot
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  #10  
Old 02-16-2012, 01:08 AM
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daiquiri daiquiri is offline
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Quote:
Originally Posted by dina View Post
The range of dynamic trim was between3-17
...
weight:880
Units, please?
Dina, if you need a help, you should help those who are willing to help you. Please provide more data about your boat - length, displacement, propulsion type, hull type, deadrise etc. What kind of dynamic stability are you concerned about - longitudinal, lateral or something else?
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  #11  
Old 02-16-2012, 02:39 AM
Ad Hoc Ad Hoc is offline
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Quote:
Originally Posted by dina View Post
L/B :26.875
A length to beam ratio of 26.875....sorry, that is nonsense!
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  #12  
Old 02-17-2012, 06:32 AM
dina dina is offline
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l/b= 2.7
weight: 880 kg
propultion: water jet
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  #13  
Old 02-17-2012, 06:32 AM
dina dina is offline
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speed: 50 knot
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  #14  
Old 02-17-2012, 06:34 AM
dina dina is offline
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hi daiquiri
longitudinal stability
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