CT Only: Book 9 or Supplement 14

[Supplement Four]

I just want this added to this thread, in case I ever come back here for ideas on writing this book...

Not true. The logical ramifications of jump shadowing for main sequence K and M stars are completely ignored by the trading rules. Any visit to worlds orbiting in the life zones of these fairly numerous stars ought to add hours or days to a trip. Worlds orbiting in the life zone of the bigger stars ought to add weeks.

Thanks for bringing that up. Jump shadowing is so often ignored.

The problem is, sans detailing the entire system, it is difficult for a GM to easily calculate the jump mask.

There needs to be an easy rule of thumb for this, based on UPP, or maybe just the extended suffic data.

We don't need exact. We just need something close to work with on an impromptu basis within the game.

 

[aramis]

There needs to be an easy rule of thumb for this, based on UPP, or maybe just the extended suffic data.

We don't need exact. We just need something close to work with on an impromptu basis within the game.

All you need is the masking to the habitable zone. 99% of systems, the main world should be the one in the hab zone... perhaps a GG moon, if need be, but in the hab zone.

A single table, cross indexing stellar class and spectrum, two entries per intersection: travel time to inner edge of HZ, and to outer edge of HZ.

Edit: a similar table has already been done

	Ia	Ib	II	III	IV	V
B0	6/10	5/9	5/9	4/8	4/8	3/7
B5	7/10	6/9	5/8	3/7	2/6	2/6
A0	8/11	6/10	5/8	2/7	2/6	1/6
A5	8/11	6/10	4/8	2/6	1/5	0/4
F0	8/12	7/10	4/8	2/6	1/5	0/4
F5	8/12	7/10	5/8	2/6	1/5	0/4
G0	9/12	7/11	5/9	2/7	1/5	0/3
G5	10/13	8/11	6/9	3/7	1/5	0/3
K0	10/13	9/12	6/10	4/8	1/6	0/3
K5	11/14	9/13	8/11	6/10	XXX	0/2
M0	11/15	11/14	9/12	7/10	xxx	0/2
M5	12/16	12/15	10/14	9/12	xxx	0/1
M9	13/19	12/16	11/14	9/13	xxx	0/0
Source:

[tc=7]Shows the first clear 10 diameter and 100 diameter orbit numbers
using standard Traveller Orbit Numbers[/tc] [tc=6]http://www.mu.org/~joe/traveller/archive/General/Min.Jump.Points.txt[/tc]

[tr]

 

[Supplement Four]

I'm going to post this, along with what Aramis said above, for future reference. Hans wrote it.

* A table showing the average extra travel time added to get to a world in the life zone of each star.

* A comment about which worlds need not be in the life zone. Possibly a die roll to establish if these mainworlds are shadowed or not (after all, just because they need not be deep in the star's jump shadow doesn't mean they aren't). Instruct referee to make a note for future reference.

* If destination has lots of trade, use the stated number of hours. If destination is unlikely to provide a decent cargo out again, double the stated number of hours (to account for both the arrival and the departure). Divide by 24 and round off. Add 10% to the standard freight and passenger prices for each extra day.​

That should not add too much extra work for the referee.

Oh, almost forgot:

* A paragraph about what simplifying assumptions that has been made and what complications have been ignored.​