Tail code

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Tail code of the USAF 1st Fighter Wing displayed on an F-15 Eagle.

Tail codes are the markings usually on the vertical stabilizer of U.S. military aircraft that help to identify the aircraft's unit and/or base assignment and occasionally other information that is not unique. This is not the same as the serial number, bureau number, or aircraft registration which provide unique aircraft identification.

U.S. Air Force[edit]

U.S. Air Force uses multiple codes that relate to the aircraft. Since 1993, all USAF components, including Air Force Reserve and Air National Guard (ANG), utilize this system. Two large letters identify the home base, or in some organizations, an historic legacy, such as "FF" ("First Air Force") for the 1st Fighter Wing[1] or "WP" ("Wolf Pack") for the 8th Fighter Wing. Air National Guard units usually use the two-letter state abbreviation as a tail code, though there are exceptions, such as the 110th Airlift Wing using "BC" ("Battle Creek") instead of the "MI" used for other Michigan Air National Guard units. Individual aircraft are further identified by three smaller numerals that are the last three digits of the airframe's serial number, usually preceded by two smaller digits that indicate the fiscal year that the aircraft was ordered.[2][3]

All aircraft of all types assigned to a unit, or in the case of ANG units, the entire state, use a common code. In some instances, such as Air Force installations in Alaska (AK) and Hawaii (HH), all aircraft of all components share a common code. Typically, units of different commands co-located at the same base use different codes. For example, the 509th Bomb Wing at Whiteman AFB, Missouri, uses "WM" while the 442nd Fighter Wing of the Air Force Reserve at the same base uses "KC" ("Kansas City").

Air Mobility Command markings[edit]

Air Mobility Command (AMC) aircraft do not use two-letter identification codes,[4] but instead have the name of the base written inside the tail flash. AMC aircraft also use a different standard to identify the aircraft serial number. They use a 5-digit number in which all 5 digits are the same size. In most cases, the first digit represents the last digit of the fiscal year (FY) and the remaining digits identify the 4-digit sequence number. In cases where more than 10,000 aircraft were ordered in a single year (1964, for example), the complete 5-digit sequence number - without FY identification - is used.

U.S. Navy[edit]

U.S. Navy Aircraft tail codes are used to organize an aircraft in Carrier Air Wings, support units not deployed on an aircraft carrier or not deployed overseas, and training commands. In Carrier Air Wing tail codes, the first letter denotes which fleet the Air Wing deploys from; A for Atlantic Fleet and N for Pacific Fleet. Tail codes in this category are organized as follows:

There are slight exceptions to this rule, as Fleet Replacement Squadrons for carrier based aircraft use the CVW style tail codes for the side of the country the unit is based from AD signifying a unit based in the Eastern U.S. and NJ from the Western US. Also, the US Naval Reserve's Tactical Support Wing (formerly Reserve Carrier Air Wing 20) uses tail code AF. Training Command aircraft, used for training prospective Naval Aviators and Naval Flight Officers use a single-letter tail code, which denotes the aircraft's parent training wing and, as such, home port.

Aircraft not assigned to the two above categories fly with any one of a number of unique tail codes that are assigned depending on specific unit and the unit's role/home port, etc.

U.S. Marine Corps[edit]

U.S. Marine Corps tail codes tend to remain the same for the entire history of the squadron no matter where the home base. However, like U.S. Navy aircraft, Marine aircraft have been specially assigned to a carrier group and their tail codes have changed during those assignments.

See also[edit]


  1. ^ The FF code is also used by the co-located 192d Fighter Wing, a Virginia Air National Guard fighter unit co-located at Langley.
  2. ^ Globemaster.DE Tail Codes
  3. ^ AeroSpaceWeb: US Air Force Tail Codes
  4. ^ US Air Force Aircraft Tail Markings (Jan 1998)


  • Tail Code - The Complete History of USAF Tactical Aircraft Tail Code Markings by Patrick Martin, Published 1994
  • Hook Code - United States Navy and Marine Corps Aviation Tail Code Markings 1963-1994 by Patrick Martin, Published 1994