Melvaine’s Mobile Pill Box

Commonwealth of Australia (1944) Mobile Pillbox – None Built The ‘Mobile Pill Box’ was the brainchild of W. W. Melvaine. He lived in Brighton Boulevard, Bondi, Australia. It was one of many inventions submitted to the Army Inventions Directorate of the Australian Army in the Second World War. Many designs were submitted for all manner,…

AC IV 17-pdr Armed Sentinel Cruiser Tank

Commonwealth of Australia (1942-1943) Cruiser Tank – 1 Prototype Built The one with the big gun Another offspring of the AC I Sentinel was the AC IV, which was to be equipped with the new British Ordnance QF 17-pounder anti-tank gun. After the July 1942 decision to proceed with increased armament for the Australian Cruisers, a…

AC III Thunderbolt Cruiser Tank

Commonwealth of Australia (1942-1943) Cruiser Tank – 1 Prototype Built The inadequate 2 Pounder In 1941, The QF Vickers 2-Pounder had been recognised as likely to become obsolete by the time that the AC tanks were scheduled entered production. The armament of the Mark I “Sentinel” was seen as transitional since the beginning, and the tank…

AC II Cruiser Tank

Commonwealth of Australia (1941) Cruiser Tank – None Built The Sentinel that never was Contrary to a popular misconception the AC II was not a design for the installation of an Ordnance 6 pounder gun in the AC I Sentinel cruiser . Such a design did exist, entitled AC IA, but this is covered more appropriately with the…

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