The
United States Air Force (USAF) has three types of flights: numbered, alphabetic, and aircraft (which may be designated by alpha-numerics or name). A numbered flight is a unit with a unique base,
wing,
group, or
Numbered Air Force mission; such as training or finance, though not large enough to warrant designation as a
squadron. Numbered flights are uncommon, and are usually only found in
basic training facilities. An alphabetic flight is an operational component of a flying or ground squadron, not an independent unit; alphabetic flights within a squadron normally have identical or similar functions, and are normally designated A, B, C, and so, on within the squadron. Flights in the USAF are generally authorised to have between 20 and 100 personnel, and are normally commanded by a company-grade officer (
lieutenant or
captain), and/or a flight chief, usually a senior
non-commissioned officer with the rank of
master sergeant or
senior master sergeant. In USAF flying squadrons, the term flight also designates a tactical sub-unit of a squadron consisting of two or three elements (designated "sections" in
U.S. Army and
U.S. Naval Aviation), with each element consisting of two or three aircraft. The flight operates under the command of a designated flight leader. In
U.S. Army Aviation, the equivalent organisational level of a flight is called a "platoon", while in U.S. Naval Aviation the flight is known as a "division". In
Minuteman intercontinental ballistic missile units of the U.S. Air Force, a flight is composed of ten unstaffed launch facilities, remotely controlled by a staffed
launch control center, containing two personnel. Five of these flights make up one missile squadron. The Air Force has a total of 45
ICBM missile flights. Under U.S. military and
FAA common usage, for
air traffic control and separation purposes, a "flight" of aircraft is simply two or more aircraft intentionally operating in close proximity to each other (typically in formation) under a designated "flight leader", without regard to military organisational hierarchy. == French flights ==