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Sidi Slimane Air Base
Fifth Royal Air Force Base
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Airport type Military
Operator Royal Moroccan Air Force
Location Sidi Slimane, Morocco
Elevation AMSL 179 ft / 55 m
Coordinates 34°13′50″N 006°03′01″W / 34.23056°N 6.05028°W / 34.23056; -6.05028
Direction Length Surface
m ft
08/26 3,445 11,302 Asphalt
Source: DAFIF[1][2]

Sidi Slimane Air Base (ICAO: GMSL) is a military air base in Sidi Slimane,[1] a city in the Gharb-Chrarda-Béni Hssen region in Morocco. It is also known as the Fifth Royal Air Force Base,[1] operated by the Royal Moroccan Air Force.


Shield of the Strategic Air Command

Built in 1951 by Atlas Construction, Sidi Slimane AB was initially used by the Strategic Air Command (SAC) of the United States Air Force as a forward deployment base for B-29 Superfortress units deployed from the United States. The base was one of three SAC bases (Boulhaut, Sidi Slimane, Nouasseur) constructed in Morocco in response to the heightened Cold War fears by NATO after the Korean War.

Emblem of the 3906th Air Base Squadron

Host unit was the 3906th Air Base Group Later: 3906th Combat Support Group. Facilities expanded in the early 1950s to accommodate jet aircraft and was used by the SAC 5th Air Division as a forward deployment base for B-47 Stratojet and B-36 Peacemaker bombers and support units during the Cold War.

Emblem of the 45th FIS

Sidi Slimane was also used by the Seventeenth Air Force (17 AF) of United States Air Forces in Europe (USAFE), which assigned the 45th Fighter-Interceptor Squadron equipped with F-86D Sabres to provide air defense of the USAF bases in Morocco during the 1950s.

Sidi Slimane AB was closed on 30 September 1963 and turned over to the Moroccan government.[3]

Today two squadrons equipped with the Mirage F1, Escadron de Chasse Atlas (Mirage F1EH-200) and Escadron de Chasse Assad (Mirage F1CH) use the base, according to (, accessed October 2010) The scale of activity has been reduced to a degree from its height under the USAF.


The airport resides at an elevation of 179 feet (55 m) above mean sea level. It has one runway designated 08/26 with an asphalt surface measuring 3,445 by 43 metres (11,302 ft × 141 ft).[1]

The base has supported occasional deployments of SAC B-52 Stratofortress and KC-135 Stratotankers over the years. A large number of tab-vees on dispersals have been built and at least one helicopter is visible parked. Condition of main runway and taxiways appear to be well-maintained. Some old USAF barracks visible and still appear to be in use to the northwest of flightline area, although most of the buildings have been torn down; the streets remaining.


  1. 1.0 1.1 1.2 1.3 Airport information for GMSL from DAFIF (effective October 2006)
  2. Airport information for GMSL at Great Circle Mapper. Source: DAFIF (effective Oct. 2006).
  3.  This article incorporates public domain material from the Air Force Historical Research Agency website and Ravenstein, Charles A. Air Force Combat Wings Lineage and Honors Histories 1947–1977. Maxwell Air Force Base, Alabama: Office of Air Force History 1984. ISBN 0-912799-12-9.

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