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Eileen Younghusband (WAAF airwoman)

Eileen Younghusband
Birth name Eileen Muriel Le Croissette
Born 4 July 1921
London, England, UK
Died 2 September 2016(2016-09-02) (aged 95)
Cardiff, Wales, UK
Allegiance  United Kingdom
Service/branch Air Force Ensign of the United Kingdom.svg Women's Auxiliary Air Force
Rank Section officer
Service number 3861
Unit No. 10 Group RAF
No. 9 Group RAF
RAF Second Tactical Air Force (2TAF)
Awards Ribbon - British Empire Medal (Civil).png British Empire Medal
Spouse(s) Peter Younghusband
(m. 1944)

Eileen Muriel Younghusband, BEM (née Le Croissette; 4 July 1921 – 2 September 2016) was a filter officer in the Women's Auxiliary Air Force in World War II. She worked in the filter room, a top-level British air defence hub which assessed radar reports in order to give air raid warnings. Later, while posted to Belgium, she was part of a team of mathematicians who alerted Allied forces to the location of V-2 rocket launch sites.

Younghusband completed a university degree at the age of 87 and subsequently published three books about her wartime experiences: two memoirs and one children's book.

Eileen Le Croissette was born in London in 1921. She joined the Women's Auxiliary Air Force (WAAF) in 1941 at the age of 19, and was trained at RAF Innsworth, near Gloucester, and RAF Leighton Buzzard. Commissioned as an assistant section officer in November 1941, and promoted to section officer in October 1942, she was posted to 10 Group Fighter Command at RAF Rudloe Manor, Corsham, near Bath, where she was deployed as a filter officer.

In this post, she was responsible for assessing the information gleaned from Chain Home coastal radar stations, estimating position, height and number of enemy forces in the air – essential for establishing Britain's defence network and giving air raid warnings. These teams had a matter of seconds to calculate accurately the whereabouts of both friendly and enemy aircraft. This information was essential since the RAF had a limited number of fighter aircraft and trained pilots, and limited supplies of fuel.

After further training at RAF Bawdsey, she went to 9 Group, RAF Barton Hall, and then to Fighter Command headquarters at RAF Bentley Priory, Stanmore. In 1944, she was posted to 33 Wing, RAF Second Tactical Air Force at Mechelen (Malines), Belgium, with a small team of women using their mathematical skills to detect the mobile launchers of the V-2 rockets aimed at London and the vital port of Antwerp. "Our job was to extrapolate the curve of the V-2 from the place it landed back to the launch site, and we did that once we knew the fall of shot and we got the position of the top of curve, we then used a slide rule in geometry to find the launch site," she told the BBC. Allied aircraft could then bomb the launch vehicles. She remained at Mechelen until June 1945.


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