HMAS Steady Hour
HMAS Steady Hour at Port Kembla in 1944
|Builder:||Lars Halvorsen and Sons, Neutral Bay|
|Fate:||Destroyed by fire in 1945|
|Length:||56 feet (17 m)|
|Armament:||1 .303 Vickers MG, 4 Depth charges|
HMAS Steady Hour (12) was a channel patrol boat of the Naval Auxiliary Patrol of the Royal Australian Navy (RAN) during the Second World War. During the 31 May 1942 Japanese attack on Sydney Harbour, Steady Hour deployed 17 depth charges against the Japanese midget submarine M-21 in Taylor's Bay. The submarine's two crew members destroyed their vessel with demolition charges and committed suicide.
- "Navy Marks 109th Birthday With Historic Changes To Battle Honours". Royal Australian Navy. 1 March 2010. Archived from the original on 13 June 2011. Retrieved 23 December 2012.
- "Royal Australian Navy Ship/Unit Battle Honours" (PDF). Royal Australian Navy. 1 March 2010. Archived from the original (PDF) on 14 June 2011. Retrieved 23 December 2012.
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