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
Commodore (rank) sleeve lace is identical to that of the Royal Navy, and wears one star on the epaulette. The following articles deal with the rank of commodore (or its equivalent) as it is employed OF-6 one-star flag officer rank in various countries. Commodore, in Spanish "comodoro", is a rank in the Argentine Air Force. This rank is the equivalent of a colonel in the Argentine Army, and a colonel or group captain in other air forces of the world. The Argentine rank below commodore is the rank of vice-commodore (Spanish "vicecomodoro") equivalent to a lieutenant-colonel in the Argentine Army, and a