Please! Have some Mercy for me

[ThunderChilde]

Just a little help is all I need, kind Sirs!
A. I seem to have an obtuse blind spot. What does a single square represent in MGT? I've read and reread the section on ships and I have nada I can see.

B. My search funtion for COTI is NG. Somewhere on here was a thread with a physical description of what all will fit in a given tonnage of cargo space.

 

[far-trader]

I recall the artist doing the deckplans for MGT having made an error and that being discussed. I don't recall the details but it was supposed to have been changed for the corrected deckplans to the CT standard iirc.

In CT a square is 1.5m long x 1.5m wide and 3.0m tall. This comes to 6.75m3, usually rounded up to 7m3 and that is 1/2 dton.

Two such squares would be 3.0m long x 1.5m wide and 3.0m tall. This comes to 13.5m3, usually rounded up to 14m3 and that is 1 dton.

Most Traveller rules used this.

GT soft converted it to 5 feet long x 5 feet wide and 10 feet tall per square for 1/2 dton iirc.

TNE went with a 2m scale and had 2m long x 2m wide and 3.5m tall per square being 14m3 and 1 dton.

I'm not recalling a thread detailing what would fit in a given tonnage of cargo space. There have been a few detailing how much of a component's space is what for a given tonnage if that's what you're thinking. Along the lines of a Stateroom is 4 dtons, about half that is the actual stateroom and the rest is common space and related functions. If that's what you're looking for.

 

[ThunderChilde]

okay, so it isn't any different from CT in that regaurds.

The thread I'm thinking of had ideas of what a standard imperial shipping container looked like, dimensions and volumes, examples of real world equivalents and the like. It may not have been on COTI I suppose, there are one or two other forums I check every once in a while.

 

[far-trader]

Yep the container comparisons has come up here a couple times at least but I don't recall just where. Not sure my searching will be any better than yours either but I'll give it a shot tomorrow, unless someone beats me to it

A few quick hits that might help in the meantime...

http://www.travellerrpg.com/CotI/Discuss/showthread.php?t=16676

http://www.travellerrpg.com/CotI/Discuss/showthread.php?t=16536

http://www.travellerrpg.com/CotI/Discuss/showthread.php?t=5585

 

[tbeard1999]

Just a little help is all I need, kind Sirs!
A. I seem to have an obtuse blind spot. What does a single square represent in MGT? I've read and reread the section on ships and I have nada I can see.

B. My search funtion for COTI is NG. Somewhere on here was a thread with a physical description of what all will fit in a given tonnage of cargo space.

My rule of thumb is that 1 Traveller ton ("dton" for "displacement ton") will hold an average of 4 metric tons of stuff.

Conversely, you can estimate the displacement tonnage of stuff -- especially machinery, vehicles and the like -- by dividing their loaded mass in metric tons by 4.

So, a TL8 main battle tank like the M1A1 Abrams, with a mass of ~60 metric tons will take up 15 dtons on a Traveller starship.

 

[far-trader]

My rule of thumb is that 1 Traveller ton ("dton" for "displacement ton") will hold an average of 4 metric tons of stuff.

Conversely, you can estimate the displacement tonnage of stuff -- especially machinery, vehicles and the like -- by dividing their loaded mass in metric tons by 4.

So, a TL8 main battle tank like the M1A1 Abrams, with a mass of ~60 metric tons will take up 15 dtons on a Traveller starship.

It's not a bad rule of thumb, though 10-15 metric tons per dton would seem more the rule based on standard shipping containers* and examples in canon iirc. The M1A1 for example is only about 6 dtons gross displacement (10 to 1), and somewhat less for actual displacement.

* an ISO 20 foot (5.9m) standard container is about 33m3 (about 2.4 dtons) and max 30 mtons loaded for example.

 

[aramis]

10Mg (Metric Tons, aka Megagrams) per 1Td is the guideline in Brilliant Lances and in FF&S, as well.

 

[GypsyComet]

Based on the ever-accurate Wikipedia's measurements, an M1A1 is almost 10m long (gun forward), almost 4m wide, and almost 3m tall. While it obviously does not take up all of that volume, that is the minimum dimensions for a "drive in/drive out" shipping container.

120m3 (a bit over 8 dTons) stowage volume for a 61.4 metric ton armored vehicle. A 15 ton bay (or crate) would be luxurious.

 

[rancke]

GT soft converted it to 5 feet long x 5 feet wide and 10 feet tall per square for 1/2 dton iirc.

Note that the scale for most of the deckplans in GT:Starships is wrong (And that's 'most' as in "I haven't found any that weren't wrong, but I may have missed one or two"). The scale is given as 1 hex = 1 yard, but a hex is bigger than a corridor; I'm almost certain that a hex is precisely two yards.


Hans

 

[ThunderChilde]

Thanks for the information folks, 20 some odd years away from Traveller and a faulty noggin, I needed the help.

P.S. When I joined in August of this year, it was because I saw MGT's Spinward Marches book, and bought it on the spot. Aside from from some disagreeable folk on the mongoose forum here, it has been a very useful experience so far. I just started refing my first Traveller game since like '85 using MGT.

 

[samuelvss]

I agree with the numbers stated, generally*, but numbers can be hard to keep in your head.

I find Mag's stuff very useful. He assumes a 4 dton standard container, 3 m wide x 3 m high x 6 m long.

http://www.TravellerRPG.com/CotI/Gallery/index.php?n=459

http://www.freelancetraveller.com/features/gallery/mag/gravlifter.html

I think that these have been easiest for me to get my mind around.

*( Densities, notwithstanding: The densities of the ISO containers vary, from 20' to 40', and have more to do with the structural strength of the floors.)