Submarine Runs On Beer

Well almost. The submarine that was launched today by Camilla using a bottle of beer brewed by the crew, will apparently never need to be refuelled.

Three things spring to mind:

1. Good on 'em for using beer rather than the usual and totally un-British champagne
2. If I smack a bottle of Frog Island Croak and Stagger against my car door tonight will it run forever without my visiting the petrol station again?
3. Where can I get my hands on a bottle of that beer?
   

Somehow I doubt number 2 will come true, and number 3 is pretty unlikely also!