Robert Cecil Dawkins was a senior office in the Royal Air Force with a rank immediately below what other rank?
Group captain Group Captain, is a senior commissioned rank in many air forces. Group Captain has a NATO rank code of OF-5, meaning that it ranks above Wing commander, immediately below Air Commodore and is the equivalent of the naval rank of Captain and the rank of Colonel in other services.
Lieutenant colonel (United States) In the United States Army, U.S. Marine Corps, and U.S. Air Force, a lieutenant colonel is a field grade military officer rank just above the rank of major and just below the rank of colonel. It is equivalent to the naval rank of commander in the other uniformed services.