Subject:
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Re: Displacement Tonnage for Spaceships?
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Newsgroups:
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lugnet.space
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Date:
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Sun, 29 Dec 2002 19:22:59 GMT
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Viewed:
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375 times
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Sounds cool. Of course, the 5-foot high wall thing is a bit off, but for
the sake of simplicity we can say that 8x8x5 studs equals ton.
Sounds like a cool idea! I wonder if the actual measurements taken in the
game RPG Traveller is true, though.
Still, since hydrogen IS the lightest element, I guess it would be a lot
lighter then water etc....
Can't wait to see this put to practicle use.
-JHK
In lugnet.space, John P. Henderson writes:
> A long long time a go, in a thread far away.... actually, I think it was
> buried somewhere in this thread here:
> http://news.lugnet.com/space/?n=16923
>
> And again here:
> http://news.lugnet.com/space/?n=18668
>
> Some of us had discussed ways of indicating a spaceship's size, perhaps
> measuring it in hundreds of studs with Roman numerals, etc. Well, I have a
> few friends who play the RPG Traveller, and the new edition of the game has
> rules explaining how to describe fictional spaceships. I thought it might
> be something we could consider here.
>
> In sea-vessels, size is often measured by how much water is displaced by the
> ship. In Traveller, spaceships use a convention of how much hydrogen might
> be displaced by the ship. (Presumably, the authors concluded that simple
> hydrogen is about as close to empty space as you can get and still have
> measurable mass. Also presumably, hydrogen is less dense than water, and
> thus a 1000 ton spaceship is actually larger than a 1000 ton seaship.)
>
> I don't have the exact text to quote, but my friends explain it as follows:
>
> Each cubic space of 1.5 meters X 3 meters X 3 meters (roughly 5 feet X 10
> feet X 10 feet) equals 1 ton of liquid hydrogen displacement.
>
> Sooo, to translate this for our use, let's compare this to minifig scale.
> This is the tough part since everyone's opinion on minifig scale is somewhat
> different. Some might say one stud equals one foot. Others might say that
> with minimal-dollhouse-effect that each stud is two feet, or 1.6238 feet, or
> whatever. When I play D&D with figs, I give them a 4x4 plate as a base and
> call that five feet.
>
> Let's just say for this argument that we settle on this last measurement
> wherein minifig scale is 1 stud equals about 1.25 feet (a 4x4 plate is about
> 5 feet X 5 feet). Also, for simplicity (if there can be such a thing with
> this topic), let's say that 1 brick in height equals 1 foot. This this
> makes a standard Moonbase corridor rather short, at only 5 feet, but stick
> with me here, just for the sake of the displacement formula. Again, the
> formula uses (for feet) the measurement of 5x10x10.
>
> Now let's assume just for simplicity that most minifig space models use the
> Moonbase corridor height as a standard. That would mean, based on these
> numbers, that any area measured as 8 studs long by 8 studs wide would equal
> 1 ton of hydrogen. Bingo! ...Lost? Let me put it another way...
>
> If 1 stud = 1.25 ft,
> then an 8x8 stud area = 10x10 feet (because 8*1.25=10).
> And if 1 brick = 5 ft,
> and if most space walls are 5 bricks,
> then 1 wall = 5 ft.
> Ergo, a space MOC room or corridor of 8x8x5 ABS = 10x10x5 feet,
> which equals 1 ton of hydrogen displacement.
>
> So lets look at an example:
> My Terrorformer model here: http://www.valyance.com/home/lego/space/terror/
> The cockpit can be rounded up to about 2 tons, the troop lander can be
> rounded down to about 2 tons, and then we allow for some estimated
> variables: Some parts have rounded walls; The engine section and the weapons
> section are each about the size of the Troop area, but are shorter than 5
> bricks; There are wings and things, etc. So, based on the formula, and
> without actually taking the time to measure the model precisely, I would
> estimate the Terrorformer has an H-Displacement of about 12 tons. (Seems
> small, but this is a small ship compared to some, and remember we are
> talking hydrogen not water.)
>
> Soooooo, now that I have typed all this out, what do we all think about
> this? Would it be worth using as a convention with space MOCs? Should it
> be modified in any way to make it simpler? More realistic? Should I make a
> flawed poll?
>
> ...Honestly, I am just looking for a cool statistic to add to my webpages
> when I post new ships. I don't expect this to be used for anything all that
> important, rather it is one of those trivial details that exist for the fun.
>
> Let me know what you think,
> -Hendo
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Message has 1 Reply:
 | | Re: Displacement Tonnage for Spaceships?
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| (...) Yes, and it was this relatively convenient conversion that made me think this measurment might be useful for some of us who build in ABS. (...) Based on the other commentary I have seen, I would guess no. But I still feel it was worthy of (...) (22 years ago, 30-Dec-02, to lugnet.space)
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Message is in Reply To:
| | Displacement Tonnage for Spaceships?
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| A long long time a go, in a thread far away.... actually, I think it was buried somewhere in this thread here: (URL) again here: (URL) of us had discussed ways of indicating a spaceship's size, perhaps measuring it in hundreds of studs with Roman (...) (22 years ago, 29-Dec-02, to lugnet.space)
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