HMAS Onslow is one of six Oberon-class submarines, previously operated by the Royal Australian Navy (RAN). The submarine was named after the town of Onslow, Western Australia, and Sir Alexander Onslow, with the boat's motto and badge derived from Onslow's family heritage. Ordered in 1963, Onslow was laid down at the end of 1967 by Scotts Shipbuilding and Engineering Company in Scotland, launched almost a year later, and commissioned into the RAN at the end of 1969.
HMAS Onslow on display at the Australian National Maritime Museum
The builders' plaque for Onslow
Onslow underway on the surface. A sailor is standing near the original bow sonar dome. This dome was replaced during the submarine's 1982–84 refit, as the new sonar was larger.
Onslow at the Australian National Maritime Museum, alongside the destroyer HMAS Vampire and the HM Bark Endeavour replica
The Oberon class was a ship class of 27 British-designed submarines operated by five nations. They were designed as a follow-on from the Porpoise class; physical dimensions were the same but stronger materials were used in hull construction and improved equipment was fitted.
HMS Otus moored at a dock in 2002.
The fin and equipment masts of HMAS Onslow
Barr and Stroud Attack Periscope Type CH74 – RAN Oberon class submarine
Torpedo fire control consoles aboard HMCS Onondaga