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
Officer Corps of the Royal Navy appointed to sea command. Officer Corps of the Royal Navy The officer corps of the Royal Navy is the cadre of personnel holding a commission from the sovereign appointing them in a position of authority in the Royal Navy. There are three main routes of entry to the officer corps; direct entry, professional entry and the upper yardman scheme. Direct entrants are recruited as civilians and undertake a full course of training to become employable. Professional entrants are individuals who have qualified professionally in the civilian environment and their employment in the Royal Navy will use these qualifications. These are