Wiggly, the centreline drop did happen. It was the last of the pre-80-update FG1s on 43(F). The nav had recently completed the QWI course and both he and his pilot were working with the Navy up north with little happening. The nav remarked that all of the jets had had the special wiring removed which meant that if his pilot selected master arm on, 'special' on the pedestal, and if the nav were to make the consent switch, nothing would happen if the pilot pickled. There was a sickening thud and they came home. Great pair of guys, not so lucky a year or so later. RIP