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RAF Chilbolton
USAAF Station AAF-404

Ensign of the Royal Air ForcePatch9thusaaf
Aerial Photo of Chilbolton Airfield - 20 April 1944
IATA: none – ICAO: none
Airport type Military
Owner Air Ministry
Operator Royal Air Force
United States Army Air Forces
Location Chilbolton, Hampshire
Built 1938 (1938)
In use 1940-1946 (1946)
Elevation AMSL 276 ft / 84 m
Coordinates 51°08′36″N 001°26′23″W / 51.14333°N 1.43972°W / 51.14333; -1.43972Coordinates: 51°08′36″N 001°26′23″W / 51.14333°N 1.43972°W / 51.14333; -1.43972
Hampshire UK location map
Airplane silhouette.svg
RAF Chilbolton
Location in Hampshire
Direction Length Surface
ft m
02/20 4,800 0 Asphalt
06/24 4,200 0 Asphalt
12/30 5,400 0 Asphalt

Republic P-47D-30-RE Thunderbolt Serial 44-20456 of the 397th Fighter Squadron on an escort mission over the German Alps.


Chilbolton loaded with CG-4As and C-47s to use in Operation "Market", September 1944.


Closeup of CG-4As marshalled at Chilbolton in early September 1944 ready to be used in Operation "Market". Many of these gliders had been used in the 6 June D-Day invasion.

Royal Air Force Station Chilbolton or more simply RAF Chilbolton is a former Royal Air Force station in Hampshire, England. The airfield is located approximately 4 miles (6.4 km) south-southeast of Andover; about 62 miles (100 km) southwest of London

Opened in 1940, it was used by both the Royal Air Force and United States Army Air Forces. During the war it was used primarily as a troop carrier airfield for parachutists. After the war it was used for jet aircraft testing before being closed in 1946.

Today the remains of the airfield are located on private property being used as agricultural fields.


Royal Air Force useEdit

RAF Chilbolton was opened in September 1940 as a satellite of RAF Middle Wallop and was used as a relief landing ground by the Royal Air Force (RAF). At first it was developed piecemeal with the addition of the necessary facilities that took it towards existence as an independent base. It then hosted its own Hawker Hurricane squadrons which took part in the Battle of Britain. No. 238 Squadron RAF operated throughout the Battle of Britain from Middle Wallop and RAF St Eval as part of No. 10 Group Fighter Command, moving to Chilbolton in September 1940 with Hurricane I’s. During the Battle of Britain many sorties were flown covering Southampton to Bristol. Once the battle had been won and therefore the threat of invasion had passed major Luftwaffe raids ceased. Several Supermarine Spitfire & Hurricane squadrons came and went, none stayed very long. By late 1941 Chilbolton had been upgraded with the addition of a perimeter track and several fighter concrete dispersal pens around it. By November 1941 it was placed into Care & Maintenance as there was no use for it by then as the Battle of Britain had ended and there were sufficient airfields in the area to continue the war without it.

RAF Units stationed at Chilbolton:

  • 238 Sqn, Hurricane I, arrived 30 September 1940, departed 20 May 1941.
  • Glider Pilots Exercise Unit, de Havilland Tiger Moth/Miles Master/General Aircraft Hotspur arrived Dec-Jan 1941.
  • 238 Sqn, Hurricane IIA, arrived 1 February 1941, departed April 1941.
  • 308 Sqn, Spitfire IIA, arrived 31 May 1941, departed 24 June 1941.
  • 501 Sqn, Spitfire IIA, arrived 25 June 1941, departed 5 August 1941.
  • 504 Sqn, Hurricane IIB, arrived 11 August 1941, departed 26 August 1941.
  • 245 Sqn, Hurricane IIB, arrived 1 September 1941, departed 17th Nov 1941.
  • 245 Sqn, Hurricane IIB, arrived 23 Nov 1941, departed 19 Dec 1941.
  • 184 Sqn, Hurricane IID, arrived 1 March 1943, departed 11 March 1943.
  • 174 Sqn, Hurricane IIB, arrived 1 March 1943, departed 11 March 1943.

America came into the war with the bombing of Pearl Harbor by the Japanese at the end of 1941 and the Allies began preparations for the invasion of Europe. RAF Chilbolton was eventually allocated to the United States Army Air Forces (USAAF) and played host to Army Co-operation Command units.

USAAF useEdit

Chilbolton was known as USAAF Station AAF-404 for security reasons by the USAAF during the war, and by which it was referred to instead of location. Its USAAF Station Code was "CB".

368th Fighter GroupEdit

On 1 March 1944 the 12th and 15th Tactical Reconnaissance Squadrons from the 67th Reconnaissance Wing, flying Spitfires and Mustangs, moved in from RAF Aldermaston to make way for a C-47 group, only to be ejected two weeks later when a new fighter group arrived. The 368th had the following fighter squadrons and fuselage codes:

  • 395th Fighter Squadron (A7)
  • 396th Fighter Squadron (C2)
  • 397th Fighter Squadron (D3)

The 368th was a group of Ninth Air Force's 71st Fighter Wing, IX Tactical Air Command.

Chilbolton continued to be retained by the USAAF for use by transports as a staging base for cargo operations to and from the Continent and it was not returned to the RAF until March 1945 by which time most of the C-47 groups had been transferred to bases in France.

Back to RAF ControlEdit

In the hands of the RAF, Chilbolton played host to a fighter Operational Training Unit - No. 41 OTU - for the rest of World War II, and then to several different fighter squadrons equipped with Supermarine Spitfires and Hawker Tempests as the RAF reduced its strength at the end of the war.

  • 41 OTU, Hurricane/Spitfire/Master/Martinet arrived March 1945, disbanded 26 June 1945.
  • 26 Sqn, Mustang I/Spitfire XIV, arrived 23 May 1945, departed 20 August 1945.
  • 183 Sqn, Spitfire IX, arrived 17 June 1945, departed 8 October 1945.
  • 247 Sqn, Tempest F2/Typhoon Ib, arrived 20 August 1945, departed 7 January 1946.
  • 222 Sqn, Tempest V, arrived 10 August 1945, departed 15 August 1945.
  • 54 Sqn, Tempest F2, arrived 15 November 1945, departed 28 June 1946.
  • 183 Sqn, Tempest II, arrived 15 November 1945, disbanded 15 November 1945.

Into the 'Jet Age'Edit

In March 1946, Chilbolton became the first RAF station to operate de Havilland Vampire jets when 247 squadron converted to Vampire FB1's, but by the late summer that year the station was on care and maintenance.

  • 247 Sqn, Tempest F2/Vampire F1, arrived 16 February 1946, departed 1 June 1946.
  • 247 Sqn, Vampire F1, arrived 12 June 1946, departed 27 June 1946.

Post warEdit

With the facility released from military control in 1946, Vickers Supermarine selected the airfield as a base for conducting flight development programmes of their jet prototypes and development aircraft, remaining for the best part of ten years. Supermarine Attacker, Supermarine Swift and Supermarine Scimitar were developed there as well as many early experimental swept wing jet fighters. The Spitfire T Mk IXs, the very last Spitfire built, a 2-seat trainer was also flown and developed at Chilbolton to be exported to India and Eire.

Folland Aircraft moved in to the other side of the airfield to conduct similar work on their products, chiefly the Midge and Gnat, but were gone by the end of 1961. With their departure, the wartime airfield began to be dismantled, with large sections of runway, perimeter track and loop hardstands being removed for hardcore.

The next organisation to take an active interest in the site was the Space Research Council which set about building an observatory with what was to become a prominent local landmark - a radio telescope, known as the Chilbolton Observatory, which was built almost in the centre of the airfield, on the wartime main runway. When constructed, the north end of the runway was removed, with a two lane access road replacing the runway and connecting to the local road network. Various other enterprises flourished or faded in the buildings on the periphery of the airfield.

Flying continued during the 1980s when helicopters and light aircraft serving a field spraying organization were in residence using a grass strip built parallel to the main north-south 12/30 runway.

Current useEdit

Today, the perimeter track has been largely reduced to a single-lane farm road as much of the airfield has been returned to agricultural use. A large section of the 06/24 secondary runway still exists, although reduced to half width. In aerial photography, however, much of the former wartime airfield's runways and hardstands can be seen as disturbances on the landscape, giving a ghostly appearance to the area.

See alsoEdit


PD-icon.svg This article incorporates public domain material from the Air Force Historical Research Agency website



  • Freeman, Roger A. (1994) UK Airfields of the Ninth: Then and Now 1994. After the Battle ISBN 0-900913-80-0
  • Freeman, Roger A. (1996) The Ninth Air Force in Colour: UK and the Continent-World War Two. After the Battle ISBN 1-85409-272-3
  • Maurer, Maurer (1983). Air Force Combat Units Of World War II. Maxwell AFB, Alabama: Office of Air Force History. ISBN 0-89201-092-4.
  • USAAS-USAAC-USAAF-USAF Aircraft Serial Numbers--1908 to present
  • Lockyer, Eleanor, M. English Airfields 1941-1945
  • Lockyer, Eleanor, M. English Airfields 1945-1962
  • Lockyer, Eleanor, M. Chilbolton Memories 1941-45

External linksEdit

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