RAF Nuthampstead

Royal Air Force Nuthampstead or more simply RAF Nuthampstead is a former Royal Air Force station in England. The airfield is located mostly in Hertfordshire between the villages of Nuthampstead and Anstey and the hamlet of Morrice Green in Hertfordshire and Langley, Lower Green and Clavering Park Wood in Essex. The eastern part of the airfield including part of the East-West Runway, the Fuel Store, the dispersal areas of 600 and 601 Squadrons and the northeastern perimeter track were all in Essex. RAF Nuthampstead is located four miles to the east of the A10 Hertford to Royston road.

Construction began in 1942 with the facility being built by the 814th and 630th Engineer Battalions of the US Army for the United States Army Air Forces (USAAF) Eighth Air Force. Nuthampstead was assigned USAAF designation Station 131. Two T-2 hangars were constructed with the technical site consisting largely of Nissen huts were situated to the west of the airfield and dispersed within the small village of Nuthampstead.

During the construction of the airfield, rubble from the blitzed areas of East London and Coventry were used for the foundations and even today, farmers occasionally turn up bricks still bearing fragments of their original wallpaper or paintwork or perhaps the remains of a wall light switch still attached.

Although the airfield was built to accommodate heavy bombers, from September 1943 until April 1944 the 55th Fighter Group used the airfield, arriving from McChord AAF Washington on 14 September 1943. The group was under the command of the 67th Fighter Wing of the VIII Fighter Command. Aircraft of the 55th were identified by a green/yellow checkerboard pattern around their cowlings.

The group consisted of the following squadrons:

The 55th FG began operations with Lockheed P-38H Lightnings on 15 October 1943, and was the first to use these aircraft on long-range escort missions from the UK. The P-38H differed from earlier versions in being powered by 1425 hp Allison V-1710-89/91 engines.

The Lightnings' engines were troubled by the addition of alcohol used as an anti-knock compound in their fuel supply; a British war economy solution which caused problems with water condensation on the ground and fuel line icing at altitude. Another British attempt to correct fuel composition caused lead metal deposits to coat cylinders and foul plugs throughout the squadron. The -H series Lightnings did not have adequate cooling for extended high-power usage, as their engine development had outstripped the cooling capacity of the integral intercooler which ran through the wing's leading edge. Pilots were instructed to restrict their periods of highest engine power to defined time limits, but many did not. As a result of these various influences, the Group's Lightnings suffered a high rate of attrition. Nevertheless, 55FG P-38H pilots provided cover for missions against aircraft plants during Big Week in February 1944. Lt. Col. Jack Jenkins led the group on 3 March 1944, when they became the first Allied fighters to reach Berlin on an escort mission.

On 16 April 1944 the group moved to RAF Wormingford in Essex to accommodate the arrival of the 398th Bomb Group. The 55FG converted to North American P-51D Mustangs in July 1944, continuing their primary task of escorting Boeing B-17 Flying Fortress and Consolidated B-24 Liberator bombers that attacked such targets as industries and marshalling yards in Germany, and airfields and V-weapon sites in France.