which company made these changes?
UNANSWERABLE
what is hmas australia 1911? It was one of three s built for the defence of the British Empire. when was it built? 1911. who was it built by? UNANSWERABLE who is responsible for the design of the ship? UNANSWERABLE were any modifications made to the ship? Yes, both anti-aircraft guns were replaced by a pair of QF 4-inch Mark V guns.
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HMAS Australia (1911) [SEP] Modifications
"Australia" received a single QF 20 cwt anti-aircraft (AA) gun on a high-angle Mark II mount that was added in March 1915. This had a maximum depression of 10° and a maximum elevation of 90°. It fired a shell at a muzzle velocity of at a rate of fire of 12–14 rounds per minute. It had a maximum effective ceiling of . It was provided with 500 rounds. The 4-inch guns were enclosed in casemates and given blast shields during a refit in November 1915 to better protect the gun crews from weather and enemy action, and two aft guns were removed at the same time.