The QF 3.7-inch AA was Britain's primary heavy anti-aircraft gun during World War II. It was roughly the equivalent of the German Flak 8.8 cm and American 90 mm, but with a slightly larger calibre of
A 3.7-inch gun on a travelling carriage in London in 1939
A QF 3.7 inch gun barrel being drawn from a furnace in Australia in 1940
A static 3.7-inch gun assigned to the 127th Heavy Anti-Aircraft Regiment, mounted on a Pile platform at Orford, Suffolk, October 1944
A 3.7-inch anti-aircraft gun towed by an AEC Matador at Burrow Head, Scotland, early 1944.
The Ordnance QF 32 pounder or was a British 94 mm gun, initially developed as a replacement for the Ordnance QF 17-pdr anti-tank gun.
QF 3.7-inch AA gun
…ammunition, Mk. VI, which gave vastly increased performance. Six variants of the two designs were introduced. The gun was also used as the basis for the Ordnance QF 32-pounder anti-tank gun variant used on the Tortoise heavy assault tank. During World War I, anti-aircraft guns and anti-aircraft gunnery developed rapidly. The…
The 32-pdr mounted in the Assault Tank A39 Tortoise