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  #16  
Old 06-08-2012, 08:48 AM
DGreenwood DGreenwood is offline
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Quote:
Originally Posted by Steve W View Post
Displacement is derived from the cubic volume of the hull(s) below the designed waterline, seawater = 64 lbs/cubic ft while fresh = 62.5 lbs so the boat will float diferently as Sabahcat pointed out.
Steve.
That isn't what he said. He said they will have "different displacements". They displace a different volume depending on the density of the liquid which they are floating upon but they do not have different displacements. This is an important distinction.
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  #17  
Old 06-08-2012, 03:46 PM
mydauphin mydauphin is offline
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Size, weight and displacement are different things. Saw an ad in the paper that said; Gorgeous Blond 24 year old, 36,24,36, bright green eyes, only 109 lbs. Athletic . So I contacted her, ran to the nearest pub. When I got there it was all true, except she was 4' tall and displaced that bar stool very well.

It is all relative and weight doesn't matter if you can spread it.
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  #18  
Old 06-08-2012, 05:54 PM
eiasu eiasu is offline
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Quote:
Originally Posted by sabahcat View Post
Lets make some numbers up for demonstration purposes.
....
Does that help?
YES !!
Thank you
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  #19  
Old 06-08-2012, 06:57 PM
Steve W Steve W is offline
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Quote:
Originally Posted by DGreenwood View Post
That isn't what he said. He said they will have "different displacements". They displace a different volume depending on the density of the liquid which they are floating upon but they do not have different displacements. This is an important distinction.
That is more or less what he said in post #13. To clarify, at a loaded displacement of 28000lbs in seawater the Pahi will have a volume of 438cubic feet immersed, take the same boat and set it into freshwater and 448 cubic feet will be immersed to displace the same 28000lbs.

Steve.
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  #20  
Old 06-09-2012, 06:36 AM
eiasu eiasu is offline
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It is so difficult to have a precise scientific definition of weight and displacement? What i read are more personal opinion that a definition
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  #21  
Old 06-09-2012, 12:58 PM
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Angélique Angélique is offline
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OK Eiasu,

Now that you understand it try to answer this post #1 and then check the thread to see if you're right . . . . .

BTW Greenwood, thanks for that one, I found it later but it still was educational

Cheers,
Angel
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  #22  
Old 06-09-2012, 02:25 PM
eiasu eiasu is offline
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Originally Posted by Angélique View Post
OK Eiasu,

Now that you understand it try to answer this post #1 and then check the thread to see if you're right . . . . .

BTW Greenwood, thanks for that one, I found it later but it still was educational

Cheers,
Angel
Thank you two, Angélique and Greenwod, that was educational,
of course i was wrong i answered "the same" than reading rayk i understood.
What i did not manage to translate is "This may seem rudimentary for some but it really throws the light switch on for some when learning the basic tenants of displacement", i can guess what does it mean, but i cannot match with that my dictionary says.
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  #23  
Old 06-09-2012, 02:48 PM
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Angélique Angélique is offline
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Quote:
Originally Posted by eiasu View Post

What i did not manage to translate is "This may seem rudimentary for some but it really throws the light switch on for some when learning the basic tenants of displacement", i can guess what does it mean, but i cannot match with that my dictionary says.
Maybe ‘‘tenant’’ is meant here in the French way as ‘‘in compliance with’’ which would give something like this . . . .

‘‘This may seem rudimentary for some but it really throws the light switch on for some when learning the basics in compliance with displacement’’

But I'm not sure . . . . . .

French: ‘‘tenant compte de’’
=
in English: ‘‘thinking of’’ -- ‘‘mindful of’’ -- ‘‘mindful’’ -- ‘‘considering’’ -- ‘‘seeing that’’ -- ‘‘with due regard’’ -- ‘‘in compliance with’’ -- ‘‘taking into account’’ --

Cheers,
Angel
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  #24  
Old 06-09-2012, 06:11 PM
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Corley Corley is offline
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Dgreenwood made a simple spelling mistake and the word he was meaning to type was "tenet". Try that in your dictionary it should make more sense.
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  #25  
Old 06-09-2012, 06:45 PM
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Angélique Angélique is offline
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Thanks Corley, spelling mistakes are harder to understand in a foreign language than in one's mother tongue as in the foreign language not all the alternatives are known or quickly available in the mind, ‘‘tenets’’ sure make more sense here than what I thought of above, thanks . . .

Cheers,
Angel
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  #26  
Old 06-09-2012, 11:32 PM
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oldsailor7 oldsailor7 is offline
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I think the displacement of the Pahi 63 was so light because it was not all cluttered up with Dick Newicks "Modern Inconveniences".
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  #27  
Old 06-10-2012, 08:33 PM
Steve W Steve W is offline
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The Pahi is a much smaller boat, of course its lighter.
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