HMS Mentor

At least four ships of the Royal Navy have borne the name HMS Mentor:

During World War II, the Ministry of Defence took over Lews Castle as accommodation for the air and ground crew of 700 Naval Air Squadron. The squadron operated a detachment of six Supermarine Walrus aircraft from a slipway at Cuddy Point in the Grounds. The base was referred to as HMS Mentor.

Lastly, from 1794 to 1798, the Admiralty employed HM Hired armed ship Mentor. Then on 12 May 1799, Mentor, of 517 tons burthen, twenty-four 9-pounder guns, and 60 men under the command of Gilbert Curry, received a letter of marque.

...
Wikipedia