Air commodore unification of the Canadian Forces in 1968, when army-type rank titles were adopted. An air commodore then became a brigadier-general (following the US Armed Forces title, rather than the British brigadier, which had been held by equivalent officers in the former Canadian Army). In official French Canadian usage, the rank title was "commodore de l'air". The position of honorary air commodore still exists in the Royal Canadian Air Cadets. Air Commodore, a calque or near-literal translation is also a rank in the Egyptian Air Force, Royal Air Force of Oman, the Royal Thai Air Force and the Air Force of
Rear admiral (Royal Navy) period included. The Royal Navy rank of rear admiral should be distinguished from the office of Rear-Admiral of the United Kingdom, which is an Admiralty position usually held by a senior (and possibly retired) "full" admiral. Rear admiral (Royal Navy) Rear admiral (RAdm) is a flag officer rank of the British Royal Navy. It is immediately superior to commodore and is subordinate to vice admiral. It is a two-star rank and has a NATO ranking code of OF-7. The rank originated in the days of naval sailing squadrons and each naval squadron would be assigned an admiral as its head.