Worst comes to worst, just have a trigger watch for a cargo hold's life equalling 5% or less, then have it get moved off to dry land and die.
But why not allow the crew to go down with the ship? That's what makes bobbing around in zepplins risky. If you made the zepplin invulnerable, that'd take care of the problem, too... but it'd be a little less fun/realistic. |