The RAF used to drop their bombs when upside down - or nearly! I've got a video of early Farnborough airshows where Victors and Vulcans demonstrated the 'lob' technique. They pulled up into a half loop releasing the bomb just before going through the vertical, then rolling off the top of the loop to dive away in the opposite direction at max knots before they got caught in a horrid mushroom cloud with all that nasty radiation :~( Very strange sight to see such a big aeroplane do a that.
And talking of the Javelin, anyone read "The Quick and the Dead", by Bill Waterton? It's long out of print but Bill was Gloster's Cheif Test Pilot for Meteor and Javelin - and the latter did not impress him much. I had a pretty Dinky Toys model of one when I was a kid, though. (Was a kid??? Still am at heart ;~)
SSD