(urth) Standard Wolfean Riddle

[Ryan Dunn]

On Aug 16, 2010, at 12:20 PM, Gerry Quinn wrote:

> The spacecraft are not from the '60s

Fair enough, but even if these are the last space shuttles ever flown with the "propulsion chambers" we've come to associate with the current technology (as described by Severian in his passage about the examination room), when do you estimate that this shipyard was abandoned and then reinhabited to be the Citadel?

...ryan