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RAN RETROSPECTIVE. HMAS ONSLOW tests the old WWII submarine slipway at Fremantle, Sept 16, 1981 - Graeme Andrews Collection.

3255. Seen here with her original bow and radome configuration, the Oberon Class HMAS ONSLOW is conducted an experimental test on the old WWII submarine slipway at Fremantle, now the site of the Western Australia Maritime Museum. Her sister boat HMAS OVENS now rests permanently on the slip as the Museum's most prominent external display.

 

ONSLOW is herself preserved at the Australian National Maritime Museum in Sydney's Darling Harbour.

 

HMAS ONSLOW was also built at Scotts Shipbuilding and Engineering at Greenock, Scotland. She was commissioned into the RAN on Dec. 22, 1969, and decommisssioned on March 30, 1999 after almost 30 years service. Singularly - and pretty sadly - she was the boat that an unwilling submariner almost took into a steep death dive off Sydney in 1972, by refusing to close off the forward ballast tanks valve when ordered. An crew member managed to close the valve, but the submarine only managed to resurface hours later by the use of its propellors, and back at the HMAS PLATYPUS base the disgruntled man - somewhat beaten by crewmates - was removed from the ONSLOW in a straitjacket. As a result of this incident recruitment into the RAN's submarine service became reserved for volunteers.

 

Also involved in a fatal gas leak incident in 1981, ONSLOW nonetheless had become the first conventional submarine to be fitted with anti-ship missiles, with which she achieved spectacular theoretical results against the USN in exercises, 'sinking' a seven ship flotilla at KANGAROO 3 in 1980, and 'sinking' the supercarrier USS CARL VINSON at RIMPAC 1998.

 

 

Photo: Photographer unknown, GKAC, from a private disc, with permission.

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Uploaded on November 13, 2010