At a recent RIAT symposium, Gen Lyle (4*ic Material Command) recounted how a certain immature system had been trialled (QinetiQ were not involved!), employed and adapted in an operational theatre. CSAF (Chief of Staff of the USAF - Gen John Jumper) gave the trials team the order: "You have permission to fail" - it didn't. How refreshing when I can't even get a floppy disk out of our (the UK) system.