Late 2013 was the 100th anniversary of the Royal Australian Navy and they held a big celebration on Sydney Harbour. Included were many military, civil and warbird aircraft flying over the harbour. See more at RANS 100th birthday celebrations

December 15 2011 was the day of the retirement from operational service of the RAN Sea King fleet at HMAS Alabatross on NSW south coast. See more at this link – RAN Sea King retirement