4-4-3. DEGREE-DISTANCE ROUTE DEFINITION FOR MILITARY OPERATIONS
Do not accept a military flight plan whose route or route segments do not coincide with designated Air Traffic
routes or with a direct course between NAVAIDs unless it is authorized in subparagraph b and meets the following
degree-distance route definition and procedural requirements:
The route or route segments must be defined in the flight plan by degree-distance fixes composed of:
(a) A location identifier;
(b) Azimuth in degrees magnetic; and
(c) Distance in miles from the NAVAID used.
The NAVAIDs selected to define the degree-distance fixes must be those authorized for use at the altitude
being flown and at a distance within the published service volume area.
The distance between the fixes used to define the route must not exceed:
(a) Below FL 180- 80 miles;
(b) FL 180 and above- 260 miles; and
(c) For celestial navigation routes, all altitudes- 260 miles.
Degree-distance fixes used to define a route must be considered compulsory reporting points except that an
aircraft may be authorized by ATC to omit reports when traffic conditions permit.
Military aircraft using degree-distance route definition procedures must conduct operations in accordance
with the following:
(a) Unless prior coordination has been effected with the appropriate air traffic control facility,
flight plan the departure and the arrival phases to conform with the routine flow of traffic when
operating within 75 miles of the departure and the arrival airport. Use defined routes or airways or
direct courses between NAVAIDs or as otherwise required to conform to the normal flow of traffic.
(b) Flight plans must be filed at least 2 hours before the estimated time of departure.
The following special military operations are authorized to define routes, or portions of routes, by
Airborne radar navigation, radar bomb scoring (RBS), and airborne missile programming conducted by the USAF,
USN, and RAF.
Celestial navigation conducted by the USAF, USN, and RAF.
Target aircraft operating in conjunction with air defense interceptors, and air defense interceptors while
en route to and from assigned airspace.
Missions conducted above FL 450.
USN fighter and attack aircraft operating in positive control airspace.
USN/USMC aircraft, TACAN equipped, operating within the Honolulu FIR/Hawaiian airways area.
USAF/USN/USMC aircraft flight planned to operate on MTRs.
USAF Air Mobility Command (AMC) aircraft operating on approved station-keeping equipment (SKE) routes in
accordance with the conditions and limitations listed in FAA Exemption No. 4371 to 14 CFR Section 91.177(a)(2)
and 14 CFR Section 91.179(b)(1).