squadron leader 
noun
A rank of officer in the RAF, above flight lieutenant and below wing commander.Workshop attendees ranged in rank from leading aircraftman/woman to squadron leader and were drawn from units across the Air Force....
- In 1918, Harris became a squadron leader in the newly formed RAF, and during the following two decades, he served in a number of locations around the British Empire.
- The 41-year-old father-of-two is currently based in Cyprus on his second tour of duty as an air force squadron leader.