In naval matters, vessels "in ordinary" (from the 17th century) are those out of service for repair or maintenance, a meaning coming over time to cover a reserve fleet or "mothballed" ships.
[4] Poorly maintained, they were susceptible to dry rot and were routinely crewed by pensioned or disabled sailors with little interest in a return to sea service.
During the War of the Austrian Succession from 1739 to 1745, a review of ships "in Ordinary" revealed that at least half of their warrant officers were too old or sickly to serve outside their mothballed vessels.
[5] Improvements were made from 1752 when Admiral George Anson, the newly appointed First Lord of the Admiralty, initiated reforms of royal dockyards with the intention of maximising the number of vessels capable of being put to sea at any time.
[8] Lastly, Admiralty successfully petitioned the Privy Council to remove the Royal Navy's Surveyor, Joseph Allin, who had held the post for forty years and was now "disordered in his senses.