Blacksheep,
Are you certain about your figures?
I flew the mighty tin triangle from Scampton for many years, and I have never heard of such time scales for AF's and BF's on the Vulcan. I have seen the aircraft AF'd and BF'd in much less time than you state and get airborne again within a short space of time (and NOT on a turnround servicing)
As for starter cartridges? what are you talking about? None of the Vulcans I ever flew had cartridges. Compressed air bottles yes, cartridges NO!
Methinks some of your 'gen is abit suspect old boy!
The Winco