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{{Short description|Air traffic control call sign}}
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[[file:Nixon-depart.png|thumb|Richard Nixon boarding the helicopter in use as Army One upon his final departure from the White House. His resignation would become effective later that day.]]

'''Army One''' is the [[callsign]] of any [[United States Army]] aircraft carrying the president of the United States. An Army aircraft carrying the vice president is designated '''Army Two'''.

==History==
From 1957 until 1976, the callsign was usually used for an Army helicopter transporting the president. Prior to 1976, responsibility for helicopter transportation of the president was divided between the Army and the [[United States Marine Corps|U.S. Marine Corps]], under the call sign [[Marine One]], until the Marine Corps was given the sole responsibility of transporting the president by helicopter.

[[File:Sea King VH3A.jpg|thumb|VH-3A tail number 150617, the same helicopter as in the above image, on display at the [[Nixon Library]]. It was in the presidential fleet from 1961 to 1976, and often flew as Army One.<ref>{{cite book |last=Harding |first=Stephen |url=https://archive.org/details/usarmyaircraftsi0000hard_c0o7/page/231 |title=U.S. Army Aircraft Since 1947 |publisher=Schiffer Publishing Ltd. |year=1997 |isbn=978-0-7643-0190-2 |location=Atglen, PA, USA |pages=[https://archive.org/details/usarmyaircraftsi0000hard_c0o7/page/231 231–32, 235–36] |url-access=registration}}</ref>]]
The best known helicopters that used the Army One callsign were Sea King [[Sikorsky SH-3 Sea King|VH-3]]A helicopters that were part of the presidential fleet from 1961 to 1976. During its presidential service, the helicopter was known either as Army One or Marine One, depending on whether Army or Marine pilots were operating the craft.<ref>{{cite web |title=Nixon Library Helicoptor |url=http://www.nixonlibrary.gov/themuseum/helicopter.php |url-status=dead |archive-url=https://web.archive.org/web/20160906141830/https://www.nixonlibrary.gov/themuseum/helicopter.php |archive-date=6 September 2016 |access-date=5 September 2012 |website=Nixon Presidential Library and Museum}}</ref> The helicopter, with seats for sixteen, had a seat reserved for the president and the first lady, and single, smaller seats for the two [[United States Secret Service|Secret Service]] agents who always flew with the presidential party.<ref>{{cite web |last=Schodolski |first=Vincent |date=29 November 2005 |title=Restoring Nixon's helicopter |url=https://www.chicagotribune.com/2005/11/29/restoring-nixons-helicopter/ |url-status=live |archive-url=https://web.archive.org/web/20230114024804/https://www.chicagotribune.com/news/ct-xpm-2005-11-29-0511290164-story.html |archive-date=14 January 2023 |publisher=Chicago Tribune}}</ref>

==See also==
* [[Transportation of the president of the United States]]

==References==
{{Commons category|Army One}}
{{Reflist}}

== Sources ==
* {{cite web|url=http://www.faa.gov/air_traffic/publications/atpubs/ATC/atc0204.html |title=Order 7110.65R (Air Traffic Control) |accessdate=1 May 2007 |date=14 March 2007 |publisher=Federal Aviation Administration |url-status=dead |archiveurl=https://web.archive.org/web/20091012042224/http://www.faa.gov/air_traffic/publications/atpubs/ATC/atc0204.html |archivedate=12 October 2009  }}

==External links==
* [https://web.archive.org/web/20160906141830/https://www.nixonlibrary.gov/themuseum/helicopter.php Helicopter] – The Nixon Presidential Library and Museum
* [https://web.archive.org/web/20120723163133/http://www.genetboyer.com/Book.html Inside the President's Helicopter: Reflections of a White House Senior Pilot] – genetboyer.com

{{PresidentialCallsigns}}
{{Use dmy dates|date=September 2019}}

[[Category:Presidential aircraft]]
[[Category:Call signs]]
[[Category:United States Army aviation]]
[[Category:Transportation of the president of the United States]]