[Spaceships] Query: Collapsible Fuel Tanks

[DaltonS]

The earliest reference I've been able to find is:

Collapsible Tanks (TL5)
These are made of a light folding material – rubberized canvas at TL5, polymers at higher TLs – and typically erected in a cargo space or open deck. An empty collapsible tank can be folded for storage into a space equal to the empty weight/40 cf. A filled tank will rupture, spilling its contents, if the vehicle makes a maneuver above 1.5 G (30mph/s). Cryogenic fuels can’t be stored in such tanks until TL8, and no other weight-reducing options can be combined with the collapsible option. Weight is ×0.1, volume ×1.2 (if filled), cost ×1, and Fire +2.

GURPS Classic: Vehicles Expansion 1 p.24

This seems to have come from MA Lloyd's "GURPS Vehicles 2nd Edition Additions" chapter 7 file which quoted it directly.

Dalton “who checked his own archives...eventually” Spence