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 Australian Navy the class in service and based at in Western Australia. The is the current main fleet unit of the Royal Australian Navy; the class has eight vessels. The lead vessel of the class, , was commissioned in 1996 and the final vessel, , was commissioned on 26 August 2006. Along with the eight Australian vessels, two "Anzac"s were also constructed for the Royal New Zealand Navy. The "Anzac" class were jointly constructed in New Zealand and Australia with the final fitout in Williamstown, Victoria. The amphibious and supply arm of the RAN is made up of; one landing platform, one