Tug boat built in 1943 by John Wright and Son Shipyards
US Army WT85 "Protrude" is a tow/tug boat built in 1943 by John Wright and Son Shipyards, in Tuncurry, Australia. After the entry of the United States in World War 2 in 1941, the United States Army ordered five 45-foot-long wooden tug/tow boats through the Ministry of Munitions. Wooden support craft were preferred over metal-hulled ships for reasons of security against mines.
The last of these was the "WT85", later to be named "Koolya" when acquired by the Royal Australian Navy. 
On 24 July 1944 WT85 was taken out over the bar at Tuncurry by a local fishing boat, the "Eldorado" then handed over to US Army WT68. In 1948 the boat was sold to the ferry operators Nicholson Bros. Harbour Transport, and named Protrude. Other craft run by Nicholson also were named with the prefix "pro". Such as the "Promise", "Protex", "Protest", "Prolong", "Promote" and "Proclaim".
Since the Second World War the "Protrude" has had many owners, roles and re-fittings. It is one of the last surviving craft built by John Wright and Son Shipyards. As of 2020, the former WT85 is moored at Elvina Bay.
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