HMAS Voyager was a Daring-class destroyer of the Royal Australian Navy (RAN), that was lost in a collision in 1964.
Constructed between 1949 and 1957, Voyager was the first ship of her class to enter Australian service, and the first all-welded ship to be built in Australia. During her career, Voyager was deployed to the Far East Strategic Reserve on six occasions, but never fired a shot in anger.
During the night of 10 February 1964, Voyager and the aircraft carrier HMAS Melbourne collided off Jervis Bay, when the destroyer passed in front of the carrier during post-refit sea trials. Voyager was cut in two by the collision, sinking with the loss of 82 of the 314 people aboard. This was the largest loss of Australian military personnel in peacetime, and the subsequent investigations resulted in the holding of two Royal Commissions—the only time in Australian history this has occurred.
On 10 February 1964, Voyager was performing trials off Jervis Bay, under the command of Captain Duncan Stevens, following the Williamstown refit. The aircraft carrier HMAS Melbourne, under the command of Captain John Robertson, was also undergoing post-refit trials off Jervis Bay. The trials involved interactions between both ships, and when Melbourne performed night flying exercises that evening, Voyager acted as the carrier's plane guard escort. This required Voyager to maintain a position 20° off Melbourne's port quarter at a distance from the carrier of 1,500 to 2,000 yards (1,400 to 1,800 m).
During the early part of the evening, Voyager had no difficulties maintaining her position during the manoeuvres both ships performed. Following a series of turns intended to reverse the courses of both ships beginning at 8:40 pm, Voyager ended up to starboard of Melbourne. At 8:52 pm, Voyager was ordered to resume the plane guard station. The procedure to accomplish this required Voyager to turn away from Melbourne in a large circle, cross the carrier's stern, then take position off Melbourne's port side. Instead, Voyager first turned to starboard, away from Melbourne, then turned to port without warning. It was initially assumed by Melbourne's bridge crew that Voyager was conducting a series of tight turns to lose speed before swinging behind Melbourne, but Voyager did not alter course again.
At 8:55 pm, with Voyager still turning to port, Melbourne's navigator ordered the carrier's engines to half astern speed, with Robertson ordering an increase to full astern a few seconds later. At the same time, Stevens, returning to Voyager's bridge from the nearby chart table, gave the order "Full ahead both engines. Hard a-starboard.", before instructing the destroyer's Quartermaster to announce that a collision was imminent. Both ships' measures were too late to avoid a collision; Melbourne hit Voyager at 8:56 pm.
Melbourne struck just aft of Voyager's bridge structure, rolling the destroyer to starboard before cutting her in half. Voyager's forward boiler exploded, briefly setting fire to the bow of the carrier before it was extinguished by seawater. The destroyer's forward section sank quickly, due to the weight of the two 4.5-inch (110 mm) gun turrets. The aft section did not begin sinking until half an hour after the collision, and did not completely submerge until just after midnight. Messages were sent to the Fleet Headquarters in Sydney immediately after the collision, although staff in Sydney initially underestimated the extent of the damage to Voyager. Melbourne launched her boats almost immediately after the collision to recover survivors, and the carrier's wardroom and C Hangar were prepared for casualties. At 9:58 pm, Melbourne was informed that search-and-rescue boats from HMAS Creswell, helicopters from HMAS Albatross (Naval Air Station Nowra), and five Ton class minesweepers had been despatched to assist in the search.
Of the 314 personnel aboard Voyager at the time of the collision, 14 officers and 67 sailors were killed, including Stevens and all but two of the bridge crew. A civilian dockyard worker also lost his life. The wreck of the destroyer lies in 600 fathoms (1,100 m) of water, 20 nautical miles (37 km) from Point Perpendicular on a bearing of 120°.
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