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100 Dton J1 cargo ship

P

Proneutron

SOC-13
This is the Type 1J1 cargo ship. Based upon data gleaned from from this thread.
I designed this ship to be the 100 ton counterpart to the Type A. Good for a group of 4 players. Or, just backdrop material. Designed using the SRD/Cepheus rules. It is a streamlined cylinder.

Bon Voyage

N.B. the Life support cost should read 4,000 not 6,000. Electronics Cr50,000 for total price of Cr 11,728,800


1_Type_1J1.jpg
 
Last edited:
Looks useful!

The 10Td bridge (+1 for electronics) breaks compatibility with LBB2 & HG but if you're not using those rule sets it's fine. Maybe claim the small-craft "computer replaces bridge but gets downrated one model number" rule to justify it in a Classic Traveller framework? Ref might buy off on it.
 
Grav_Moped said:
Looks useful!

The 10Td bridge (+1 for electronics) breaks compatibility with LBB2 & HG but if you're not using those rule sets it's fine. Maybe claim the small-craft "computer replaces bridge but gets downrated one model number" rule to justify it in a Classic Traveller framework? Ref might buy off on it.
Click to expand...

Thanks, I haven't done a CT ship since MT came out. I'll have to refresh my memory on that. I was surprised how much cargo space I got using Mgt1/SRD HG drive rules. To my knowledge no 100t J1 ship was published before in that rules set. (I'm probably wrong there but I never saw one).
 
Generally speaking, I build a ship around a weapons system and/or engineering.

For freight ships, maybe around the presumed cargo?
 
Condottiere said:
Generally speaking, I build a ship around a weapons system and/or engineering.

For freight ships, maybe around the presumed cargo?
Click to expand...

Yes, that sounds like a correct/logical approach. In this case as the ship is as small as it gets and is a commercial vessel, the design was centered around being able to haul enough freight (inanimate & living) to be profitable while affording some operational flexibility and safety margins. One could shove an air/raft in and still have enough cargo space to be viable. There is enough ELB space to hold the maximum stateroom compliment in case of being stranded while waiting for help.
 
Mongoose 1st edition A drive is jump 2 (p108 in my "pocket" version), so no jump 1 there as A is the smallest drive (it is jump 2 in 100 tons, jump 1 in a 200 ton ship)
 
If we do a complete barebones design with the drives above, we can get a whopping 80 Dt cargo hold with a nominal cost of MCr 11.6.

No Jump fuel is carried, so demountable tanks in the cargo hold may be necessary. Still leaves 70 Dt usable.

A couple of 1 Dt modules allows swappable turrets, better sensors, collapsible tanks, or something...

 
AnotherDilbert said:
If we do a complete barebones design with the drives above, we can get a whopping 80 Dt cargo hold with a nominal cost of MCr 11.6.

No Jump fuel is carried, so demountable tanks in the cargo hold may be necessary. Still leaves 70 Dt usable.

A couple of 1 Dt modules allows swappable turrets, better sensors, collapsible tanks, or something...
Click to expand...

amazing really. Although dis-mountable tanks may not be a frontier solution but on a set route I could see it.
 
Proneutron said:
Yes, for any tonnage. The system is designed to give the correct answer for the standard drives too. Thus if you use it to design a J2 for a 100t hull you get the same tonnage & cost as the type A J-drive from the tables.
Click to expand...

There are two separate ship design systems, one for ships up to 2000 Dt and another for ships over 2000 Dt. And a third for small craft, just to make things simple...

Small ships use standard drives only, minimum A, hence J-2 at 100 Dt.
See https://www.traveller-srd.com/core-rules/spacecraft-design/

Large (Capital) ships use drive percentages, but those drives are not legal for small ships.
See https://www.traveller-srd.com/high-guard/capital-ship-design/
 
AnotherDilbert said:
There are two separate ship design systems, one for ships up to 2000 Dt and another for ships over 2000 Dt. And a third for small craft, just to make things simple...

Small ships use standard drives only,
Click to expand...

Nope. That isn't in the rules. Read again and quote the rule you are talking about if it is in your book. Using the HG rules you can recreate the "standard" off the shelf drives too as it is the same formula. At TL 9 they can make a J1 100T ship. The standard drives are just off the shelf examples.
 
Just for clarification, when you refer to the System Reference Document, you are referring to the Mongoose 1st edition one. Is that correct?
 
The Cepheus Engine SRD does not allow for a 100 dTon Jump-1 ship, but it does make sense. It has a lot of cargo capacity, and could be considered a sort of small truck ship serving a cluster of Jump-1 worlds without a lot of population. I will have to think about modifying the Cepheus Engine rules/guidelines to allow for it. There are a few spots in my Out Rim sector where something like that would be quite useful for moving cargo back and forth.
 
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