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
History of the Royal Navy History of the Royal Navy The official history of the Royal Navy began with the formal establishment of the Royal Navy as the national naval force of the Kingdom of England in 1660, following the Restoration of King Charles II to the throne. However, for more than a thousand years before that there had been English naval forces varying in type and organization. In 1707 it became the naval force of the Kingdom of Great Britain after the Union between England and Scotland which merged the English navy with the much smaller Royal Scots Navy, although the two had begun