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Christopher Noel Hunter Lock (21 December 1894 – 27 March 1949) was a British aerodynamicist, after whom the Lock number is named.[1][2]


Biography


Lock was born at Herschel House, Cambridge, the youngest son of John Bascombe Lock (18 March 1849 – 8 September 1921) who was bursar of Gonville and Caius College, Cambridge,[3] and Emily née Baily.[4] His brother was Robert Heath Lock. Lock was a Scholar at Charterhouse School, and in 1912 was awarded a Major Scholarship at Gonville and Caius College,[5] where he was the only b* wrangler of 1917.[6] He took his BA in 1917, won a Smith's Prize in 1919, and became a fellow of Caius College in 1920.[4][5]

He was a member of the Anti-Aircraft Experimental Section, and in 1920 moved to the Aerodynamics Division of the National Physical Laboratory in Teddington,[5] to work on the dynamics of shells.[6][7] He conducted wide-ranging experiments, including on autogyros, and became an authority on airscrews.[5] From 1939 until his death, he ran the Aerodynamics Division's High Speed Research Group.[5][8] He developed the pitot-traverse method for measuring profile drag, and investigated the effect of sweepback at high Mach numbers.[5]

He was a Fellow of the Royal Aeronautical Society and the Physical Society.[9] He was a member of various committees of the Aeronautical Research Council.[5]


Personal life


Lock married Lilian Mary née Gillman (1886/7–7 Oct 1966, aged 79) on 26 April 1924, at St Leonard's Church, Streatham.[10] They had two sons, Robert Christopher (Robin) Lock (14 Aug 1925–19 March 1992) and John Michael Lock (25 Oct 1926–2 March 2002),[4] who were both research students at Gonville & Caius.[5]


References


  1. Prouty, Raymond W. (2009). Helicopter aerodynamics. Lebanon, Ohio: Eagle Eye Solutions. p. 222. ISBN 978-0-557-09044-0.
  2. Johnson, Wayne (1994). Helicopter theory. New York: Dover Publications. p. 267. ISBN 978-0-486-13182-5.
  3. Venn, John (15 September 2011). Alumni Cantabrigienses: A Biographical List of All Known Students, Graduates and Holders of Office at the University of Cambridge, from the Earliest Times to 1900. Cambridge University Press. ISBN 978-1-108-03614-6. Retrieved 3 May 2022.
  4. Beamish, David (8 April 2004). "The Lock family of Dorchester, Dorset, Version 3.04" (PDF). Retrieved 3 May 2022.
  5. Fage, A (December 1949). "Obituary Notices: C. N. H. Lock". Proceedings of the Physical Society, Section A. 62 (12): 831–832. Retrieved 6 May 2022.
  6. Aubin, David; Goldstein, Catherine (7 October 2014). The War of Guns and Mathematics: Mathematical Practices and Communities in France and Its Western Allies around World War I. American Mathematical Society. p. 86. ISBN 978-1-4704-1469-6. Retrieved 3 May 2022.
  7. "Herbert William Richmond, 1863-1948". Obituary Notices of Fellows of the Royal Society. 6 (17): 219–230. November 1948. doi:10.1098/rsbm.1948.0027. ISSN 1479-571X. S2CID 162385944. Retrieved 6 May 2022.
  8. Young, A. D.; Pankhurst, R. C.; Schultz, D. L. (1978). "Douglas William Holder. 14 April 1923-18 April 1977". Biographical Memoirs of Fellows of the Royal Society. 24: 223–244. doi:10.1098/rsbm.1978.0008. ISSN 0080-4606. JSTOR 769761. S2CID 72595623. Retrieved 6 May 2022.
  9. David, Thomas Rhodri Vivian. British Scientists and Soldiers in the First World War (with special reference to ballistics and chemical warfare) (PDF). Imperial College London. p. 338. Retrieved 3 May 2022.
  10. Beamish, David (9 April 2004). "Transcript of Lock entries from the digital archive of The Times prior to 1985" (PDF). Retrieved 3 May 2022.




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