A Question to Scott Kelloggs Designs

A thread of 2 messages, 15 May 1991 to 16 May 1991, in the order they were sent.

#2353 A Question to Scott Kelloggs Designs

[unnamed sender] · 15 May 1991

Hello out there,

I have some trouble with Scott Kelloggs designs. In part 7.3 of his
submissions, he describes the Battleship BISMARK and in part 6 he
describes a Boeing 747. I wonder, why both have a displacement of 6000.
Can somebody tell me, why so different vehicles have the same displacement ?


Juergen


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Juergen Kirsch
Institut fuer Informatik, Universitaet Bonn
Germany
[email removed]                     or
[email removed]

#2359 Re: (2353) A Question to Scott Kelloggs Designs

Robert S. Dean · 16 May 1991 · reply to #2353

Juergen Kirsch asks:
> Subject: (2353) A Question to Scott Kelloggs Designs
>
> I have some trouble with Scott Kelloggs designs. In part 7.3 of his
> submissions, he describes the Battleship BISMARK and in part 6 he
> describes a Boeing 747. I wonder, why both have a displacement of 6000.
> Can somebody tell me, why so different vehicles have the same displacement ?
>
I can't speak authoritatively for Scott, but it is probably a typographical
error.  However, I do know that the "displacement" values for aircraft are
roughly equal to the volume of a rectangular box touching the wingtips, nose,
and tail.  So that "displacement" contains a lot of empty space.  A surface
ship, on the other hand, can get up to 13.5 tons of water displacement (minus
the amount needed for stability) per ton of standard (liquid hydrogen)
displacement.

Rob Dean