page 5
DISPLACEMENT TON: A measurement of volume equal
to one metric ton of liquid hydrogen, roughly 13.5
cubic metres. When discussing spacecraft, ‘ton’ – if
not specified or otherwise obvious from context – most
often refers to a displacement ton.
This is incorrect for Mongoose Traveller.
The Mongoose Traveller core rule book and High Guard use the more correct 14 cubic metre definition of the displacement ton.
crb update 2022 page 149
The size of a ship, its components and cargo is
measured in displacement tons or simply tons. A
displacement ton displaces a volume equal to one ton
of liquid hydrogen. One displacement ton is roughly
equal to 14 cubic metres.
High Guard update 2022 page 5
Ships are measured in ‘displacement tons’ or d-tons:
a 100-ton ship displaces a volume equal to one 100
tons of liquid hydrogen (one d-ton equals roughly 14
cubic metres).
For the sake of consistency change it from 13.5 to 14.