The phrase "auxiliary vessel" is correct and usable in written English.
It is typically used in maritime contexts to refer to a ship or boat that provides support to other vessels, often in terms of logistics or services.
Example: "The auxiliary vessel was dispatched to deliver supplies to the research team stationed on the remote island."
Alternatives: "support vessel" or "service vessel".
As a way around the problem, Obama administration officials are exploring the possibility of fitting a Navy auxiliary vessel, the Cape Ray, with mobile hydrolysis units for destroying the chemical agents at sea, The Associated Press reported.
A plan has been hatched to destroy Syria's chemical weapons at sea using US Navy auxiliary vessel MV Cape Ray.
While on sea trials, she collided with the auxiliary vessel Traveller on 27 June 1903 at Devonport.
He was then ordered in December 1943 to join the crew of the USS Algol, an Attack Cargo Auxiliary Vessel, to assist with the ship's fitting out and crew training in Portland, Oregon.
The crew of the Westminster and its auxiliary vessels were already ashore and swaying drunkenly outside the pubs in Casemates Square, the booze-and-burger hub of Gibraltarian nightlife.
Naval operations in World War II saw a proliferation of these auxiliary vessels; in 1945 only 29 percent of the U.S. Navy consisted of purely fighting ships.
The row could intensify further on Monday as HMS Westminster, a British warship, and two auxiliary vessels are due to dock in Gibraltar, with crowds of flag-waving residents set to welcome them into port.
Ministry of Defense officials said the British fleet in preparation in the Mediterranean for gulf duty included the aircraft carrier Ark Royal and the amphibious ship Ocean, three destroyers, four auxiliary vessels, three landing ships, two minesweepers and a submarine.
Through Shardik, it is believed, God will reveal his secret truth, and his chosen auxiliary vessels are a man and a woman, roles into which Kelderek and the Tuginda quickly slot themselves.
Her exertions were unwearied, she exhausted her private funds in sending out auxiliary vessels to quarters not comprised in the public search, and by her pathetic appeals she roused the sympathy of the whole civilized world.
The measures, originally framed to encourage the development of English shipping so that adequate auxiliary vessels would be available in wartime, became a form of trade protectionism during an era of mercantilism.
