Commodore (Royal Navy) Commodore (Royal Navy) Commodore (Cdre) is a rank of the Royal Navy above captain and below rear admiral. It has a NATO ranking code of OF-6. The rank is equivalent to brigadier in the British Army and Royal Marines and to air commodore in the Royal Air Force. The rank of commodore was introduced during the 17th century in November 1674 (though not legally established until 1806). In 1684 the navy introduced two classes of commodore, the first known as a "Commodore Distinction" and the other a "Commodore Ordinary"; these would later evolve into commodores first and second class. In
Trawlers of the Royal Navy Trawlers of the Royal Navy This is an accounting of the naval trawlers, purpose built or requisitioned, operated by the Royal Navy mainly during World War I and World War II. Vessels purpose built to Admiralty specifications for RN use were known as Admiralty trawlers. All trawlers operated by RN, regardless of origin, were typically given the prefix HMT, which stood for "His Majesty's Trawler". There were also 215 trawlers of no specific class These were commercial trawlers taken over by the Admiralty. The Royal Navy classified requisitioned trawlers by manufacturer, although such classes were more diverse than traditional naval