Bort numbers are markings usually found on the side of the fuselage of Soviet (and later Russian) military aircraft that help identify the aircraft's unit and/or base assignment. In Russian use, the bort number is analogous to the United States' military tail code system and does not provide unique aircraft identification.[1]
- ^ Merlin, Peter W. (2021-02-22). Tonopah Test Range. Arcadia Publishing. p. 98. ISBN 978-1-4396-7194-8.