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
Hydrographer of the Navy the Navy. Hydrographer of the Navy Hydrographer of the Navy is a Royal Naval appointment. From 1795 until 2001 the post was responsible for the production of charts for the Royal Navy, and around this post grew the United Kingdom Hydrographic Office. In 2001 the post was disassociated from UKHO, and the Hydrographer of the Navy is now a title bestowed upon the current Captain (Hydrography and Meteorology) on the staff of Commodore Devonport Flotilla. Before the establishment of the post, captains of Royal Navy ships were responsible for the provision of their own charts. In practice this meant that