Construction and Acquisition
Following the cancellation of the Australian light destroyer project in 1973, the British Type 42 destroyer and the American Oliver Hazard Perry class frigate were identified as alternatives. Although the Type 42 met the RAN's requirements as a replacement for the cancelled light destroyers and the Daring class destroyers, fitting the ship with the SM-1 missile would have been difficult. On the other hand, the Perry class was still at the design stage; a design that was described by assessment project staff as "a second rate escort that falls short of the DDL requirements on virtually every respect". Despite this, the Australian government approved the purchase of two US-built Perry class ships in 1974.
The risk of acquiring an unproven design was seen as acceptable because of the success of the USN's Charles F. Adams class destroyer (of which the RAN operated three ships as the Perth class), when compared to the equivalent British ships the RAN would have purchased. Final government approval to order two ships was granted in 1976, with a third ship ordered in 1977. The order was later expanded with the order of a fourth unit. These four ships were built by Todd Pacific Shipyards of Seattle, Washington, as part of the USN's shipbuilding program, and were assigned USN hull numbers during construction, which were replaced with RAN pennant numbers upon entering service. The first, HMAS Adelaide (USN hull number FFG-17, RAN pennant number FFG 01) was built to the Flight I design, while Canberra (FFG-18/FFG 02) and Sydney (FFG-35/FFG 03) were the first and last ships of the Flight II design, respectively. The final American-built ship was Darwin (FFG-44/FFG 04); constructed to the Flight III design. In 1980, two more ships (Torrens and Newcastle) were ordered, but were built in Australia by AMECON of Williamstown, Victoria, and did not receive USN numbers. Prior to launch, Torrens was renamed Melbourne, as the aircraft carrier of the same name was still commissioned when the Adelaide class was ordered, but left service in 1982.
Read more about this topic: Adelaide Class Frigate
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