Air commodore is never shortened to Commodore, which is a rank in various naval forces. Air commodore is a one-star rank and the most junior air officer rank, being immediately senior to group captain and immediately subordinate to air vice-marshal. It has a NATO ranking code of OF-6 and is equivalent to a commodore in the Royal Navy or a brigadier in the British Army or the Royal Marines. Unlike these two ranks, however, it has always been a substantive rank. Additionally, air commodores have always been considered to be air officers whilst Royal Navy commodores have not since the Napoleonic Wars
Robert Cunliffe (Royal Navy officer) to be Commodore, Royal Naval Barracks, Devonport in August 1944 before retiring in January 1946. Robert Cunliffe (Royal Navy officer) Commodore Robert Lionel Brooke Cunliffe CBE (15 March 1895 – 29 November 1990) was a Royal Navy who became Commander-in-Chief, Dover. Cunliffe joined the Royal Navy in September 1912. He was present at the Battle of Jutland in June 1916 during the First World War. He became commanding officer of the sloop HMS "Milford" in December 1937. He also served during the Second World War as Captain of the Royal Naval College, Dartmouth from December 1939, Commander-in-Chief, Dover from April