Design and Construction
During late 1944 and early 1945 the Australian Army suffered from a shortage of shipping, leading to delays in moving heavy equipment and small watercraft from Australia to operational areas in the South West Pacific. While several British and United States vessels were eventually made available in mid-1945, the Australian Army's chief engineer, Major General Clive Steele, chose to design and build a heavy lift ship for the Army. Steele personally designed the ship, which was intended to support amphibious operations and transport supplies. He deliberately underestimated the project's cost in order to gain approval for the ship's design and construction.
The ship's design incorporated a number of unusual features. Crusader had a shallow draft to allow her to operate close to the shore, as well as four rudders and six engines driving six propellers to give her a high degree of manoeuvrability. While the ship required engines capable of generating a total of 2,000 horsepower (1,500 kW), the largest engines which were available in Australia at the time each generated only 220 horsepower (160 kW) horsepower. Only six of these engines could be fitted into the ship, and she was considered under powered during her Army service. Her hold could carry 1,500 long tons (1,500 t) of stores and an additional 40 vehicles could be embarked on her deck. The ship also had six 30-long-ton (30 t) cranes to move heavy equipment, as well as six bridge-like structures which were used to embark and disembark vehicles. This equipment allowed her to discharge cargo at the rate of 90 long tons (91 t) at any one time. Crusader had a 'box-like' appearance, and her design did not impress naval engineers.
Crusader was built by the Melbourne Harbour Trust at Williamstown Dockyard in Williamstown, Victoria. She was the largest all-welded steel vessel to have been constructed in Australia at the time, and her final price of £124,000 was considerably more than Steele's deliberate underestimate. The ship was launched on 8 August 1945 after being named by Steele's wife, and later became the largest ship to be commissioned by the Australian Army during World War II. Construction of a sister ship, to be called AV2768 Corsair, was also begun, but this ship was cancelled when the war ended.
Read more about this topic: Australian Army Ship Crusader (AV 2767)
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