Traveller Store CotI Features New Posts Mark Forums Read Register

Go Back > Citizens of the Imperium > General Traveller Discussions > In My Traveller Universe

In My Traveller Universe Detail what parts of Traveller you do (or don't) use in your campaign.

Thread Tools Display Modes
Old May 16th, 2016, 10:20 AM
whulorigan's Avatar
whulorigan whulorigan is offline
Join Date: Mar 2008
Location: Philadelphia
Posts: 2,399
Gallery : 0
Visit whulorigan's Blog
whulorigan Citizen++whulorigan Citizen++whulorigan Citizen++whulorigan Citizen++whulorigan Citizen++
Small Starburst Variant: Reintroducing CT:Book 2 (v.'81) Jump Drives into the OTU

In another thread, the following posts were made:

Originally Posted by aramis View Post
Originally Posted by mike wightman View Post
CT'77 limited the drive performance to 1-6 for all drives depending on the size of hull it was put in.
TL allowed you to build certain drives, eg TL9 drives A-G (TL10 is required for a type H drive) and those drives could achieve performance 6 in smaller hull sizes. Oh and there was a rule that you couldn't have drive performance over 6 with these drives...
Point - a TL 9 culture can build ships with jump 1-6 (there was no computer restriction back then either, you just had to be able to run the jump 6 program which takes up 2 spaces)
The OTU setting has adopted the HG derived drive TL paradigm where you don't access higher jump numbers until higher TLs - so there is a rules/setting disconnect right there.
CT 81 is similar, but not quite the same.
You have to have a computer model at least as high as the jump, so TL 9 is J3, TL A is J4, TL B is J5, TL C is J6, TL D+ are theoretically higher, but you can't build higher than J6 (and J7 won't fit with fuel and bridge anyway).
Also TL 9 is A-D, TL10 is E-H, 11 is J-K, 12 L-N, 13 P-Q, 14 R-U, 15 V-Z...
Originally Posted by Golan2072 View Post
I also like the Book 2 (and Old Mongoose) drive tables and the Book 2/Book 3 drive TLs rather than the Book 5 (and all later Traveller) ones. This makes ship "mass" (volume technically, but presumably corresponding with mass) matter - the heavier the ship, the harder it is to accelerate it to high speeds or to throw it into distant jumps. Also, Book 3 drive TLs are much more nuanced, as you can have faster ships earlier, though they are much smaller and on the other hand on lower TLs ship size is limited; I prefer this over the linear drive progression introduced by Book 5 (which is now canonical).
I agree. And (as an aside) it probably explains why DGP noted that the Vilani of the First Imperium had a "faulty theory of jump drive", that did not allow them to produce drives greater than J-2 performance (if they were using the CT '77 / CT '81 ruleset as their basis for MT); otherwise, the Vilani should easily have been able to make J-4 by TL11 under CT '77 / CT '81 , which would break the canon-history of the Interstellar Wars period.
As an OTU-variant, I was curious as to what people's insights would be concerning the idea of reintroducing the CT '81 version of Jump Drives into the otherwise "canon" universe of the OTU (i.e. Jump-rating is NOT limited by TL, but only by TL of Drive Letter and Computer type).

What problems would it introduce with the back story or how the canon-universe functions? Could the Book 5 design system be modified to fit the paradigm, or would the hassle be significant enough to relegate it to a strictly a small-ship universe?

(Note: The idea here is Jump distance, not whether or not the Jump Drive is self-powered or powered by the Power Plant. Assume it is powered by the Power Plant for the sake of the discussion).

WHULorigan (Wayne)

Lord Richard Elruinn Ilendrick Rhovanion of Rhylanor
Count RhovanionSPIN 2716 Rhylanor A434934-FSir Richard, Knight (Kt)SPIN 2716 Rhylanor A434934-F
MarquisSPIN 0433 Jone B792785-9Sir Richard Elruinn, Knight (Kt)FORN 0727 Dirli C994422-8
Baronet of Jae TellonaSPIN 2814 Jae Tellona A560565-8Knight of Deneb (KD)SPIN 2814 Jae Tellona A560565-8
Baron of the Third ImperiumSPIN 3220 Powaza C787566-5Knight of the Third Imperium (KTI)SPIN 3235 Trin A894A96-F
Knight of the Iridium Throne (KIT)CORE 2419 Sevan A544576-A
Richard Elruinn Rhovanion (TAS Member #0008)SPIN 2716 Rhylanor A434934-F

Other Awards
Duke of the Third ImperiumREAV 3209 Kylian BA57742-A
Duke of KhouthCORR 0104 Khouth A8C3999-D
Viscount of AlellSPIN 1706 Alell B56789CA
Baron of ImlaarDENE 2212 Imlaar D677551-6SEH - For Extreme Heroism @ The Battle of Ruby
Baroness of NorthammonDENE 0921 Northammon B764667-AMCGx2 - For Conspicuous Gallantry @ The Assaults on Dinomn & Denotam

Last edited by whulorigan; May 16th, 2016 at 10:33 AM..
Reply With Quote

To see more of this thread, please login or register.


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Jump Grids & Jump Drives Gadrin Imperial Research Station 10 December 30th, 2010 05:04 PM
Jump Drive Variant Valarian Imperial Research Station 23 December 4th, 2006 04:23 PM
Variant Jump Rules Spinward Scout The Lone Star 16 October 4th, 2004 01:49 PM
Jump Drives Tarn The Fleet 7 October 7th, 2002 09:33 AM
Jump Drives and Jump Space Scarecrow The Lone Star 3 August 10th, 2002 03:11 PM

This website and its contents are copyright ©2010-2013 Far Future Enterprises. All rights reserved. Traveller is a registered trademark of Far Future Enterprises .
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright (c) 2010-2013, Far Future Enterprises. All Rights Reserved.