100 Dton J1 cargo ship

[Proneutron]

The Cepheus Engine SRD does not allow for a 100 dTon Jump-1 ship, but it does make sense.

Correct, the Cepheus has no other drives than those on the table. No drive formula to use. I used the MgT HG SRD. It is weird in that at TL 9 J1 is invented yet you cannot have a jump drive that is J1 in a 100 ton hull in some versions like Cepheus. <edit> Cepheus is simply a partial port of the MgT SRD. So bringing over other parts of the SRD shouldn't cause any problems.

It is good for a party that wants to buy a ship in that you can be viable per month and not have to use the whole month schlepping cargo in many cases.

 

[Condottiere]

1. Minimum ten tonnes

2. Default budget - increased size by twenty five percent

3. Overhead six and a quarter tonnes

4. Variable three and three quarter tonnes

5. One hundred twenty parsec tonnes

6. Eleven and a quarter megastarbux

 

[Proneutron]

1. Minimum ten tonnes

2. Default budget - increased size by twenty five percent

3. Overhead six and a quarter tonnes

4. Variable three and three quarter tonnes

5. One hundred twenty parsec tonnes

6. Eleven and a quarter megastarbux

I can tell this makes sense but lacking sleep I cannot put it together.

 

[Condottiere]

I suspect I've done the most extensive studies on Mongosian jump drives in Traveller, in the pursuit of the cheapest possible; this variant stays well within the current canonized rule set.

 

[Proneutron]

I suspect I've done the most extensive studies on Mongosian jump drives in Traveller, in the pursuit of the cheapest possible; this variant stays well within the current canonized rule set.

Ah, thanks. I have just started with that rule set (Mgt1 & SRD) My favorite Trav rule set so far.

 

[AnotherDilbert]

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.

No, MgT1 is not CT. The capital ships design system is separate from the small ship system. The shared elements are in the Spacecraft Options chapter.

Capital ships can only have drives from the Capital Ship system, i.e. percentage drives.

Small Core book ships can only have drives from the Core book, i.e. lettered drives.

 

[Proneutron]

Small Core book ships can only have drives from the Core book, i.e. lettered drives.

Nope. If I design a J2 drive for a 100 ton ship using the % formula it is the same size and cost as the A drive from the tables. Sorry but true.

 

[AnotherDilbert]

If I design a J2 drive for a 100 ton ship using the % formula it is the same size and cost as the A drive from the tables.

1) Irrelevant, they are still two different systems.

2) No, a Jump Drive A is 10 Dt and MCr 10 (http://www.travellersrd.com/content/official/mongoose_traveller_srd/spacecraft_design.html#the-engineering-section).
A percentage drive would be 3 Dt and MCr 6 (http://www.travellersrd.com/content/official/mongoose_traveller_srd/high_guard_srd/capital_ship_design.html#the-hull).
Definitely not the same.

 

[Condottiere]

Both have overheads, but one is fixed at five tonnes, the other is a percentage of the volume.

Jump core variable alternates between two and a half percent, to one percent, in what seems a balance against the manoeuvre drive volume.

 

[Proneutron]

1) Irrelevant, they are still two different systems.

:rofl:

 

[Proneutron]

Here is a 2 Dton, 6 seat, 500 kph enclosed grav vehicle to go with the ship. If financed with the ship it is a pittance.

http://www.travellerrpg.com/CotI/Discuss/showthread.php?t=41595&page=2