Hello Ethan,
My apologies the source is CT LBB 2 1977/1981 6th printing found in FFE 001 Books 0-8 The Classic Books 2000 2nd printing.
The copy I have for CT LBB 2 1977 is the 6th printing.
The Computer Software List on page 12 indicates that in order to perform a jump you are requires to have the appropriate jump program which for a J4 would require the Jump 4 program. Page 13 has the basic requirements and the Computer Models Table.
Computer Programming on pages 30-33 provides the details on how the computer operates with the programs. From page 31: "For example, a Model/1 computer has a CPU capacity of two, and an additional storage capacity of four. The computer might have in int six programs, (each size or space 1): return fire, predict 1, gunner interact, maneuver, and target. Of these six, only two (the capacity of the CPU) can function at any one time (in one phase)...."
"...To continue the example above, both jump-1 and navigation would be required for the performance of an interstellar jump. Both programs would be fed into the computer during the reprogramming phase, but only after sufficient space has been cleared (perhaps by removing the maneuver and auto-evade programs.."
The Scout/Courier is J2 capable and requires the Jump-2 program which requires 2 CPU/Storage spaces and navigation which requires 1 addition CPU/Storage space. The Model/1 computer's CPU, as indicated in the text quoted above, has a space of 2 which could not hold both the Jump-2 and Navigation programs. A TL 6 Model/1bis computer can run both the Jump-2 and Navigation programs as well as the Maneuver program. A TL 7 Model/2 computer's CPU can only run the Jump-2 and Navigation programs. While TL 8 Model/2bis, TL 9 Model/3, or TL 10 Model/4 computers can handle running more programs besides Jump-2 and Navigation at the same time. Note that the computer TL is found on pages 10 and 11 of CT LBB 3 1977 9th printing.
The above information indicates that the CT LBB 2 1977 Scout/Couriers Model/1 computer cannot perform the calculations for a single 2 parsec jump.
CT LBB 2 1977/1981 6th printing made some changes to CT LBB 2 1977 reflecting the changes made with the release of CT LBB 5 HG 1980.
The first change was material quoted in my first reply.
CT LBB 2 1977/1981 page 22 Computers table the last note is "...Model also affects jump ability."
CT LBB 2 1977/1981 re-titled and moved the CT LBB 2 1977 Computer Programming section to pages 38-40. The new title is Computers, unfortunately the example of how the computer handles a jump has been omitted. Consolidated CT Errata v 1.1 (02/01/14) page 5 indicates for CT LBB 2 1977 that JTAS 1 has the article "Computer Programming" by Marc W. Miller, pages 7-8, that would be included in 1981 edition and later Classic Traveller releases. CT LBB 2 1977/1981 page 40 has a section titled "Writing Computer Programs" which omits the details from the JTAS 1 article but does include the details for determining fatal flaws not covered in the JTAS 1 article.
Tom Rux
On October 24, 2019 at 7:02 PM Ethan McKinney <xxxxxx@gmail.com> wrote:
My 1977, 13th printing, doesn't have that. In fact, nothing about computers on that page at all.
The Type-S has a Model/1 and J-2 in the '77.
Hello Ethan,
CT LBB 2 page 14: "In addition, the model number indicates the highest level of jump which can be achieved by the ship. For example, a ship must have a Model/4 computer before it can perform jump-4, in addition to the proper size jump drive"
Tom Rux
On October 24, 2019 at 5:04 PM Ethan McKinney <xxxxxx@gmail.com> wrote:
I looked at LBB2 and couldn't find anything about computer model number limiting jump capability. Am I missing something? Can someone point me to a page?
Thanks,
Ethan
Just offhand I'd say "no" as it's always been my understanding that CT LBB ships' computers are limited in that respect.
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Hello all,
While working on the Jump Drive question comparison of j-max at the TLs detailed in CT LBB 3 1977, 1981 I'm trying to figure out if CT LBB 2 1977, 1981 Computer Models/3+ can handle jumps of greater than their designated number..
At TL 9 can custom 100 ton hull with a Computer Model/3 make a J4 TL 9 Type-B drive jump 4 parsecs?
If the answer yes and the hull uses a minimum of a J1 fuel load, a 2 week power plant fuel load, and drop tanks there is a possibility that a custom hull can make a four parsec jump.
If not then the hull maximum is J3 as far as I can tell.
Tom Rux
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