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Alconbury (Abbots Ripton)


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There was controversy at Alconbury during the Second World War. A local dog breeder, Mrs Stanley Mulcaster of Great Stukeley, went to the police over suspicions of ‘illegally landed dogs’. There were reports of American airmen smuggling in dogs, cats and even a monkey and honey bear.

Also known as: Alconbury Aerodrome / Alconbury Weald / RAF Alconbury / USAAF Station 102
County: Cambridgeshire
Current Status: Industry
Date: May 1938 - 15 April 1995
Current Use: Disused
Landing Surface Types: Unpaved, later paved
Aircraft Roles: Bomber (main role) / Reconnaissance (main role) / Trainer

Alconbury began life as Britain’s first satellite airfield when No 63 Squadron’s Fairey Battles from Upwood transferred here in May 1938 to investigate the viability of the site. This exercise proved successful, very shortly leading to selection for development as an airfield, and Battles arrived again on 1 September 1939. These aircraft of No 52 Squadron soon left but Alconbury quickly became a satellite for Wyton and Bristol Blenheims, Short Stirlings and Vickers Wellingtons all dispersed there until 1942.

The beginning of the airfield’s long association with American armed forces began in September 1942 with the arrival of USAAF Consolidated B-24s of the 93rd Bomb Group, eventually followed by the 92nd and 482nd BGs. Alconbury’s position relatively far inland meant that it often carried out more unusual roles, for a while accommodating Boeing YB-40s which were pre-production gunship versions of the B-17 heavy bomber. More conventional B-17s and B-24s soon predominated while the 482nd BG carried on with pathfinding operations before switching to similar instructional duties in order to provide training that would guide other USAAF bombers in poor weather.

On 27 May 1943 several bombs accidentally exploded here, killing nineteen personnel and destroying four B-17s. The airfield was also used as a USAAF bomber maintenance depot: these facilities were often regarded as separate installations and in this case lay close to the village of Abbots Ripton. Alconbury was known locally by this name for a long period after the Second World War. At the end of 1945, the airfield was officially handed back to the RAF and taken over by No 264 Maintenance Unit for use as an Equipment Disposal Depot until disbandment on 30 September 1948.

After a period of Care and Maintenance and then being reduced to inactive status Alconbury reopened under the United States Air Force in Europe (USAFE) in June 1953. Major construction work took place in 1954 with a revamped 9,000 feet runway, a new control tower and numerous other facilities all being either freshly constructed or refurbished. The bomb stores were designed to hold both conventional and nuclear weaponry if necessary. This redevelopment meant that aircraft such as North American B-45 Tornado bombers and Douglas RB-66 Destroyer reconnaissance types arrived at Alconbury in the 1950s, replaced in the mid-1960s by the hugely successful McDonnell Douglas RF-4C Phantom II. The 10th Tactical Reconnaissance Wing – resident since 1959 – was joined in 1976 by Northrop F-5E Tiger IIs of the 527th Tactical Fighter Training Aggressor Squadron which provided training by pretending to be the ‘enemy’, using Soviet tactics and dogfighting techniques and painted in similar colour schemes.

Lockheed TR-1A reconnaissance aircraft, upgraded versions of the U-2, arrived at Alconbury in 1983 and thirteen specially designed hardened aircraft shelters appeared to accommodate them. In addition, a two-storey bunker was built which included its own power plant, communications facilities, air supply and decontamination facility with the aim of ensuring that operations could continue during a nuclear war. The bunker, known as ‘Magic Mountain’, has been restored and could be used in the event of a natural disaster.

Meanwhile, the F-5Es and RF-4Cs were withdrawn and replaced with two squadrons of Fairchild Republic A-10A close air support aircraft, resulting in the 10th TRW becoming the 10th Tactical Fighter Wing on 20 August 1987. Special operations aircraft such as Lockheed MC-130s and Sikorsky MH-53 helicopters also operated from Alconbury before transferring to RAF Mildenhall in February 1995. Residents active in the First Gulf War after Iraq invaded Kuwait in August 1990 included three TR-1As that were among the first aircraft to be sent to the area. They were later joined by twenty-four A-10As in December, no personnel or aircraft were lost in the conflict.

The supposed end of the Cold War saw the beginning of the end of flying at Alconbury. Throughout 1992 the A-10As relocated back to the USA and the U-2s finally left in September 1993. All flying ceased in the early months of 1995 but part of the airfield remained in use by the Americans for communications duties. In January 2015 it was announced that the USAF would pull out of RAF Alconbury as well as the nearby airfields of Mildenhall and Molesworth. Part of the site is now owned by Urban & Civic who are developing it as an Enterprise Zone and the construction of around 5,000 houses is planned. There has been some demolition but the runway and many hangars and support buildings, including the original Second War and USAFE post-war control towers, survive as of 2015.


The following organisations are either based at, use and/or have at least potentially significant connections with the airfield (as at 01/07/2023):

  • 93rd Bombardment Group
  • Abbots Ripton Parish Council
  • Accio Group
  • Alconbury Driving Centre
  • Alconbury Parish Council - name only
  • Alconbury Training Ltd
  • Alconbury Weston Parish Council
  • Allways Garage Services Ltd
  • Badger Benches Ltd
  • BC Wiles & Son Ltd
  • Benchmark Services Ltd
  • bio-bean Ltd
  • Cambridge Car Club
  • Cambridgeshire Police Shrievalty Trust
  • Canpas Ltd
  • CHD Logistics (Alconbury) Ltd
  • Cook Italian Ltd
  • Cross Trades and Logistics Ltd
  • D & S Distribution
  • Ermine Street Chuch Academy
  • Etch Tech Ltd
  • GI Partners
  • Kings Cliffe Flyers Cycling Club
  • Lawgistics Ltd
  • LDH (La Doria) Ltd
  • Lifestyle Furniture
  • Mega Trucking Company Ltd
  • Motward Timber Recycling Ltd
  • Music Essentials Ltd
  • Pallet Solutions Limited
  • PE Generators
  • St. Ives Cycling Club
  • St. Peter & St. Paul Church, Alconbury
  • The Stukeleys Parish Council
  • Urban&Civic
  • Westley and Huff
  • Wincanton

 Main unit(s) present:

  • No 1 PRU
  • No 3 PRU
  • 10th Tactical Reconnaissance Wing
  • No XV Con Flight
  • No XV Sqn
  • No 40 Sqn
  • No 52 Sqn
  • 85th BS
  • 92nd BG
  • 93rd BG 
  • No 139 Sqn
  • No 156 Sqn
  • No 264 MU
  • 325th BS
  • 326th BS
  • 327th BS
  • 328th BS
  • 329th BS
  • 330th BS
  • 407th BS
  • 409th BS
  • 482nd BG
  • 527th Tactical Fighter Training Aggressor Sqn 
  • 812th BS
  • 813th BS
  • 814th BS
001Aerial photo.jpg

Aerial photograph of Alconbury, 28 April 1942. Courtesy of Wikimedia Commons


Ground crew of the 95th Bomb Group at Alconbury attending to damage caused by an explosion while loading bombs, 28 May 1943. Courtesy of Wikimedia Commons

003Aerial photo 2.jpg

Aerial photograph of Alconbury, 9 May 1944. Courtesy of Wikimedia Commons


Crews from the 482nd Bombardment Group at Alconbury in 1944. Courtesy of Wikimedia Commons

005Briefing hut.jpg

The 93rd Bomb Group briefing hut at Alconbury in 1944. Courtesy of Wikimedia Commons

006Aerial photo 3.jpg

An aerial photograph of Alconbury in 1944. Courtesy of Wikimedia Commons


The 36th Bombardment Squadron, USAAF, at Alconbury, 23 May 1945. Courtesy of Wikimedia Commons


An aerial photograph of Alconbury in 1947. Courtesy of Wikimedia Commons


The Mess Hall at Alconbury, 1956. Courtesy of Wikimedia Commons

010Higher quality RB-66.jpg

A Douglas RB-66B Destroyer of the USAF at RAF Alconbury, 28 May 1960. © George Trussell/


McDonnell Douglas RF-4C Phantom IIs arrive at Alconbury in 1966. Courtesy of Wikimedia Commons


A Northrop F-5E Tiger II over Alconbury in 1979. Courtesy of Wikimedia Commons

013Lockheed TR-1A.jpg

A Lockheed TR-1A of the USAF at RAF Alconbury, 1987. © Keith Sowter/

014Replica F-5E.jpg

Replica Northrop F-5E outside RAF Alconbury in an Aggressor colour scheme. © Bikeboy and licensed for reuse under this Creative Commons Licence.

015-95th Bomb Group memorial.jpg

The memorial to the 19 airmen who lost their lives after an accidental bomb explosion on 27 May 1943. © Chris Lowe and licensed for reuse under this Creative Commons Licence.

016Aerial View of RAF Alconbury - 5 January 2008.png

Aerial view of Alconbury, 5 January 2008. © Richard Flagg

017General Aircraft Maintenance & Overhaul Hangar - 3 September 2010.png

General Aircraft Maintenance and Overhaul Hangar, Alconbury, 3 September 2010. © Richard Flagg

018U-2 : TR-1 Hardened Aircraft Shelter - 3 September 2010.png

U-2/TR-1 Hardened Aircraft Shelter at Alconbury, 3 September 2010. © Richard Flagg

019Control Tower - 3 September 2010.png

Control tower at Alconbury, 3 September 2010. © Richard Flagg

020Command Post (Soft) (Building 25) - 3 September 2010.png

Command Post at Alconbury, 3 September 2010. © Richard Flagg

021Primary Repair Hangar - 11 November 2011.png

Primary Repair Hangar at Alconbury, 11 November 2011. © Richard Flagg

022Squadron & Flight Offices : 10th Fighter Wing Operations & Training - 11 November 2011.png

10th Fighter Wing Operations and Training building at Alconbury, 11 November 2011. © Richard Flagg

023Hardened Aircraft Shelter : TAB-Vee (Building 3032) - 10 October 2012.png

Hardened Aircraft Shelter at Alconbury, 10 October 2012. © Richard Flagg

024Aero Engine Repair Shop - 26 January 2013.png

Aero Engine Repair Shop at Alconbury, 26 January 2013. © Richard Flagg

025-10th Security Police Squadron Headquarters and Central Security Control - 5 October 2013.png

10th Security Police Squadron Headquarters and Central Security Control, 5 October 2013. © Richard Flagg

026-17th Reconnaissance Wing Headquarters (Building 14) - 1 June 2014.png

17th Reconnaissance Wing Headquarters at Alconbury, 1 June 2014. © Richard Flagg

027Aerial View of RAF Alconbury - 3 September 2016.png

Aerial view of Alconbury, 3 September 2016. © Richard Flagg

028-2 SAD Hangar : T2 Aircraft Shed : USAFE Warehouse (Building 552) - 9 April 2017.png

T2 Aircraft Shed at Alconbury, 9 April 2017. © Richard Flagg


The former control tower at Alconbury, 30 September 2017.

Christmas at Alconbury in 1963. Courtesy of British Pathé

Film from Alconbury in 1967/68. Courtesy of Allan Chapin

Various aircraft types at Alconbury in the 1980s. Courtesy of birdman143's channel

Footage from RAF Alconbury Air Show, 1987. Courtesy of Shadeofsoul

Footage of Alconbury, September 1991. Courtesy of Rob L

Film after a Hardened Aircraft Shelter was demolished in 2000. Courtesy of footlaunch1

Aerial footage of Alconbury, July 2014. Courtesy of Matt Jarvis

Film showing the demolition of the Control Tower at Alconbury in 2015. Courtesy of footlaunch1

Slideshow of the Airfield Research Group's visit to Alconbury. Courtesy of Mark Kelsall


A plan of Alconbury during the Second World War. Courtesy of Wikimedia Commons

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