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Reference An area for the staff to park copies of really useful bits of research by various members. PM nominations (with the url from the specific post - click the post number to get it -) to one of the staff.

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Old October 14th, 2014, 07:01 PM
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Classic Traveller has two major editions: "CT-77" and "CT-81".

The pre-81 vs post 81 changes are pretty impressive:
  • change of damages from Xd+Y to Xd
  • Surprise DM's (more in 2E)
  • Encounter distance table has more terrain types on the DM's table.
  • Combat movement handled slightly differently.
  • Changes in ship design requirements
    • in 1E, PP≥MD, in 2e PP≥max(MD, JD))
    • In 1E, computer must be able to run the correct jump prorgam, in 2E, it must have a model number at least equal the Jn.
    • Changes in the drive performance table
    • Changes in standard hull construction times (2E less across the board)
  • changes in nature of space encounter tables
  • Changes in ship combat scale (1E: 1"=1000mi, 10 minute turns; 2E: 1cm = 1000km, 1000s)

Noting the performance differences in the Bk2 drive tables:




MGT has a different table still, just for reference.

There are some further fairly minor changes from the 81 edition in the Traveller Book and Starter Traveller.
~ Aramis /trav
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Last edited by aramis; August 12th, 2015 at 11:13 PM..

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