Squadron leader a flying squadron is usually commanded by a wing commander, with each of the two flights under a squadron leader. However, ground-operating squadrons which are sub-divisions of a wing are ordinarily commanded by a squadron leader. This includes squadrons of the RAF Regiment and University Air Squadrons. The rank insignia consists of a thin blue band on a slightly wider black band between two narrow blue bands on slightly wider black bands. This is worn on both the lower sleeves of the tunic or on the shoulders of the flying suit or the casual uniform. Squadron leaders are the lowest
United States Air Force officer rank insignia insignia stayed. United States Air Force officer rank insignia The United States Air Force officer rank insignia in use today. This chart displays the United States Air Force officer rank insignia. The ranks are divided into three sections: company grade, field grade, and general officers. Company grade officers are those officers of grades O-1 to O-3. Field grade officers are those of grades O-4 to O-6. General officers are those of O-7 and above. Currently, promotion from Second Lieutenant to First Lieutenant is virtually guaranteed after two years of satisfactory service. Promotion to Captain is virtually guaranteed after another two