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Making vision into power : Britain's acquisition of the world's first radar-based integrated air defence system 1935 - 1941

By P E Judkins

Abstract

This thesis represents the first application of a current conceptual model of defence acquisition to analyse the historical process, the 1935 - 1941 British acquisition of an integrated air defence system pivoted upon the innovative technology of radar. For successful acquisition of a military capability, the model posits that balanced attention must be focused acoss eight 'lines of developmen' - not only equipment, but also doctrine and concepts, logistics, structures, personnel, organisation, training and information with an overarching requirement for interoperability. This thesis contrasts what turned out to be a successful acquisition, of radar to achive air interception capability by day in the Battle of Britain, with less successful acquisition, or radar to achieve the same capability at night, where an effective system arrived too late to ward off the Blitz. The results establish the validity of the model and its attendant lines of development concepts, and furnish new insights into acquisition processes and military history. Acquisition lessons are derived for the capability-based involvement of industry, for the experience and personality necessary for key managers at different 'life stages' of an acquisition and for the avoidance of over-rapid 'dysfunctional diffusion' of innovative technologies. Historical insights for the Battle of Britain include the sub-optimal performance, for trivial reasons, of key South Coast radars, and the critical importance of the human elements of the radar-based air defence system. For the Blitz, airborne radar hardware has previously been identified as a key problem, whereas research here exposes the greater need for accurate ground control radar, the sound selection and training of pilots and operators in new tactics, and provision of equipment maintainers and test gear. New evidence illustrates that pursuit of an alternative to radar significantly delayed the optimal solution, and throws fresh light both on personalities and on development process management

Publisher: Cranfield University
Year: 2008
OAI identifier: oai:dspace.lib.cranfield.ac.uk:1826/2577
Provided by: Cranfield CERES

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Citations

  1. (1991). (Eds.), The Battle Re-fought,
  2. (2005). 1.Directorate of Defence Acquisition, The Acquisition Handbook, 6 th Edition, London: Ministry of Defence,
  3. (1948). 128.A.P.Rowe, One Story of Radar, Cambridge:
  4. (2006). 14. 219 Squadron daybook acquired from Turner Donovan Military Books and in possession of the author.
  5. 165,546 Klasse 21/g Gruppe 30/10 30.4.1904. The most recent research on Hulsmeyer’s patent has been carried out by the Dutch researcher Arthur Bauer and is posted on his extensive website www.xs4all.nl/~ aobauer/Huelspart1def.pdf.
  6. (1936). 1938. 478 HTT140 Correspondence re research including letter to Watson Watt about “disappointing”
  7. (1920). 1970, Cambridge:
  8. (1935). 2/4, Papers on Silhouette,
  9. 232 quoting Londonderry’s letter of 17.7.1934 in the Baldwin papers at the Cambridge University
  10. (1998). 25 Squadron Blenheim in February 1940. The aircraft does not appear to have the underbelly gun-pack fitted as the bomb doors are open.
  11. (1978). 29. Essex County Council Sites and Monuments Record No. 20565: Kit’s Hill, North Fambridge;
  12. (1966). 365; (with Robert Wright) Years of Command,
  13. (1935). 66, citing Chartwell Papers
  14. 7 Diagrammatic representation of the UK’s 1940 air defence system.
  15. (2006). 7; oral interview with Dr.
  16. (1989). 77.R.W.Burns, ‘Aspects of UK air defence from 1914 to 1935: some unpublished Admiralty contributions’
  17. (2001). 9; Sir Bernard Lovell, Echoes of War,
  18. (1999). 94 Typical wartime production magnetron, after improvements by Guitton and Sayers at GEC. (Colin Latham and Anne Stobbs, Pioneers of Radar,
  19. (2000). 95 AI IV units, showing the modulator, at top left; AI IV transmitting aerial in the nose of a Beaufighter,
  20. (1943). A British bomber can be seen upper right silhouetted against the burning city. (Imperial War Museum (IWM) C 3898). 325 Fig. 58 a,b. North Fambridge Silhouette site (Essex County Council SMR,
  21. (1996). A Case Study in the Relationship of History of Technology and of General History: British Radar technology and Neville Chamberlain’s Appeasement Policy’,
  22. (1990). A Comparative Analysis of RAF and
  23. (2003). A New Look at the Wizard War’,
  24. (1989). A Race on the Edge of Time,
  25. (1999). A Radar History of World War II: Technical and Military Imperatives,
  26. (1997). A Story of Life on the Radar Wave, Privately published,
  27. (2005). A Summer Bright and Terrible,
  28. (1946). A Survey of Cathode-Ray-Tube Problems in Service Applications with Special Application to Radar’,
  29. (1938). A Sussex Sunset:
  30. (2003). A View of Air Defence Planning in the Control and Reporting System 1949-1964,
  31. Acquiring a radar-based night air defence system in the 1930s.
  32. (1946). Aerials for Radar Equipment’,
  33. AI II installation, from the Touch memorandum (TNA/PRO AIR 20/1464) 412 Fig. 89 AI II installation at the rear of a Blenheim.
  34. AIR 16/1024 Air Fighting Committee: minutes. 473 AIR 16/1067 German air attacks in England: report by AVM K.R. Park and statistical returns.
  35. (1939). AIR 16/277 Fighter tactics for squadron formations: trials with Spitfires and Blenheims. AIR 16/312 Methods of locating aircraft above clouds. AIR 16/316 Sound discs and mirror development.
  36. (1940). AIR 16/348 Home defence organisation: expansion
  37. (1939). AIR 16/45 Committee for the Scientific Survey of problems of air defence. AIR 16/47 Silhouette detection of aircraft: searchlight experiments.
  38. (1938). AIR 16/94 Reports on operations and organisation during emergency,
  39. AIR 2/1770 Radar and Radio Countermeasures: Cathode ray direction finding.
  40. AIR 2/2201: Radar and Radio Countermeasures: RDF Interception Experiments Part I.
  41. AIR 2/2202: Radar and Radio Countermeasures: RDF Interception Experiments Part II.
  42. AIR 2/2575 Facilities to be afforded to Mr Tizard whilst undertaking special work for the Secretary of State.
  43. AIR 2/2587 Radar and Radio Countermeasures: Identification of friendly aircraft.
  44. AIR 2/2653 Proposals for provision of equipment for
  45. AIR 2/2709 Organisation for research and development in communications.
  46. AIR 2/2724 Bawdsey Research Station: appointment of Commandant and staff proposals.
  47. (1936). AIR 2/2726 Training of personnel for RDF
  48. AIR 2/2965 Radar and Radio Countermeasures: RDF stations: progress reports.
  49. (1934). AIR 20/145 Committee for the Scientific Survey of Air Defence:
  50. (1935). AIR 20/181 Committee for the Scientific Survey of Air Defence:
  51. (1933). AIR 20/185 Air Defence of Great Britain: air exercises
  52. (1934). AIR 20/186 Air Defence of Great Britain: air exercises
  53. AIR 20/189 Radio Direction Finding Committee: interim report 1939. AIR 20/195 Bawdsey Research Station: notes on history.
  54. (1938). AIR 20/2357 Committee for the Scientific Survey of Air Defence:
  55. AIR 20/2777 Night Interception Committee: agendas and minutes.
  56. (1938). AIR 20/420 Visual Detection of Aircraft Subcommittee. AIR 20/466 Committee for the Scientific Survey of Air Defence: index to minutes of meetings. AIR 20/474 Committee for the Scientific Survey of Air Defence: analysis of bombing errors.
  57. (1991). Air Commodore Henry, High Commanders of the Royal Air Force,
  58. (2001). Air Commodore John, Electronic Airborne Goldfish,
  59. (1973). Air Defence of Great
  60. (1929). Air Defence,
  61. (1927). Air Defence, London: Longmans,
  62. (1939). Air Force Fighter Command Losses of the Second World War,
  63. (1940). Air Force Museum Archive,
  64. Air Force Museum Archive, Hendon, London, Dowding papers,
  65. (1939). Air Historical Branch, RAF Signals
  66. (2001). Air Intercept radar in the night air defence of the United Kingdom 1940-1955’, in Air Defence,
  67. (1939). Air Ministry, London The Second World War: Royal Air Force Signals
  68. (1933). Air Publication 928, Air Fighting, London: Air Ministry
  69. Air Vice-Marshal, taped interview for CHiDE,
  70. (2000). Air War at Night,
  71. (1996). Airbandit: C3 and Strategic Air Defences during the First Battle of Britain 1915-18’
  72. Airbandit: C3 and Strategic Air Defences during the First Battle of Britain 1915-18’ in Michael Dockrill and David French (eds.), Strategy and Intelligence: British Policy during the First World War,
  73. (1991). Aircraft for The Few,
  74. (1939). All Air Publications listed were published by the Air Ministry, London. Air Publication (AP) 129, Royal Air Force Flying Training Manual,
  75. (1994). An Annotated Bibliography of Radar History’,
  76. (1939). An experimental set would be available by
  77. (1990). An RAF bomber outlined against an illuminated background, the light provided in this case by target indicators. (Alex Thorne, Lancaster at War 4,
  78. (1914). and Air Defence
  79. (1948). and Fall of the German Air Force,
  80. (1914). Anti Aircraft Artillery
  81. (2002). Anti Aircraft Artillery,
  82. Anti Aircraft Gun Equipment and Ammunition: Anti Aircraft Sound Locators 30.10.17
  83. AP 1093 C & D Introductory survey of radar principles and equipments, Parts I & II.
  84. (1939). AP 1762 Electrical and Radio Notes for Wireless Operators,
  85. (1946). AP 2276B Radar photo record; illustrated summary of AMES,
  86. (1932). Appendix 1: List of Staff.
  87. (1937). April, the Air Ministry responded 145 to Dowding’s letter of 15
  88. Archives Centre, Churchill College,
  89. (1939). Archives Centre, Churchill College, Cambridge, E.G. Bowen papers EGBN 1/7, R Hanbury Brown A Suggestion for Fighter Control Memorandum,
  90. (1950). Army Radar, London: War Office,
  91. (1989). Aspects of UK air defence from 1914 to 1935: some unpublished Admiralty contributions’
  92. ASV I fitting as shown
  93. (1991). ASV I receiver/indicator (R. Hanbury Brown, Boffin,
  94. (1935). At its inception, it was Dowding, Air Member for Research and Development, and so top level budget holder, who insisted upon the “proof of concept” test, the Daventry experiment, before the initial £10,000 for research was granted 105. After the September
  95. (1976). Attack Warning Red,
  96. (1976). Attack Warning Red, London: Macdonald and Jane’s,
  97. (1958). Augen durch Nacht und Nebel,
  98. (1935). AVIA 10/349 Air Defence Research:
  99. (1932). AVIA 12/133 Acoustical mirrors for coastal defence: correspondence
  100. (1939). AVIA 13/1024 Radio direction finding (RDF) air interception (AI) policy
  101. (1940). AVIA 15/250 RDF training apparatus and methods. AVIA 23/231 Sound mirrors for anti-aircraft defence. AVIA 23/269 Observation of aeroplanes from kite balloons by sound. AVIA 23/276 Acoustical research section: progress reports SEE 285,
  102. (1925). AVIA 23/279 Acoustical research section: progress reports
  103. AVIA 23/289 Acoustical research section: progress reports 1925 SEE 298, 298a. AVIA 53/356 Radar development: application for award. CAB 2/6 Committee of Imperial Defence:
  104. AVIA 6/954 Interim note on Silhouette detection trials, 1936. AVIA6/979 Trials of parachute flares for Silhouette detection. AVIA 7/32 RDF Stations: coastal chain: investigations. AVIA 7/106 AI for single seat aircraft.
  105. (1940). AVIA 7/137 Centimetric wave (general)
  106. (1937). AVIA 7/2009 RDF2: programme of research work
  107. AVIA 7/2961 Acoustic experiments for Admiralty.
  108. (1936). AVIA 7/3177 Aircraft: Silhouette detection
  109. (1939). AVIA 7/3269 CD sets for tracking U-boats
  110. (1938). AVIA 7/411 RDF Operators: training of women observers
  111. (1939). AVIA 7/754 Detection of low-flying aircraft
  112. (2000). Battle of Wits,
  113. (1973). Battle over the Reich,
  114. (1937). Bawdsey was handed over i n May,
  115. (2004). Beaufighter Ace,
  116. (2004). Bibliography for RAF Radar Interests, 6 th Edn, privately published for the WW2 Air Forces Radar
  117. (1983). Birth of the Beam,
  118. (1998). Blenheim Squadrons of World War 2,
  119. Bomber and Coastal Commands, model TR 1082/3. German: aircraft transmitter-receiver, model FuG 10. I.1.2. UK National Archives,
  120. (2007). Bowen: Saint or Sinner?”, Spring Lecture, Defence Electronics History Society,
  121. (2001). Britain’s Shield,
  122. (1984). British Air Strategy between the Wars,
  123. (1952). British War Production,
  124. (1991). Bucks: Bucks Literary Services,
  125. (2002). Building an Air Manoeuvre Capability: The Introduction of the Apache Helicopter,
  126. (1939). CAB 102/640 Cabinet History: History of the Development of Radio
  127. (1925). CAB 16/67 Committee of Imperial Defence: Anti Aircraft Research including Subcommittee
  128. (1936). CAB 21/1101 Silhouette detection of aircraft
  129. (1938). CAB 21/636 Air defence research, aerial mines,
  130. (1936). CAB 64/5 Air defence research: correspondence with Rt.
  131. (1938). CAB 64/9 Air defence: position at 1
  132. (1995). Callick ‘VHF Communications at RAE 1937-1942’, Paper read at IEE international Conference on “One Hundred Years of Radar”,
  133. (1960). Carne, The Eyes of the Few,
  134. (2007). CBE, oral interview with the author,
  135. (1985). CH-The First Operational Radar’,
  136. (2001). Chain Home calibration results for Drone Hill – the discrepancies from the aircraft’s true track can readily be
  137. (1999). Chain Home display – range only (today called an “A-scope display) (Colin Latham and Anne Stobbs, Pioneers of Radar,
  138. (1993). Chain Home Radar – A Personal Reminiscence,
  139. (1992). Chance and Design, Cambridge:
  140. (1940). Chapter 16; Laurie Brettingham, Royal Air Force Beam Benders No 80 (Signals) Wing
  141. (1957). Chapters 4-5. 63. In the possession of the author, purchased from Turner Donovan Military Books as part of this research.
  142. (1995). Churchill and the Prof.,
  143. Churchill Archives Centre, Churchill College, Cambridge, Bowen papers,
  144. (1934). Co-operation:
  145. (1936). Committee on Imperial Defence,
  146. (2000). Condor: The Luftwaffe in
  147. (1978). Confound and Destroy,
  148. Contemporary photograph of 1918 air defence sub-control room (Christopher Cole
  149. (2004). Contributing to its own Defeat: the Luftwaffe and the Battle of
  150. (1947). Contribution to Victory,
  151. (2000). Conyers, The Battle of Britain,
  152. (1940). Countermeasures: Installation of RDF stations for Fighter Command miscellaneous papers
  153. (1953). Cover of Darkness, London: Chatto and Windus,
  154. (1997). Current MoD acquisition thinking is based upon an acquisition model codified, extended and deepened since
  155. (1952). de la Ferté, The Fated Sky,
  156. (1998). Defence, IPT Pilot Guide: Smart Requirements Model, 3 rd edition,
  157. (2004). Defending Britain: Twentieth Century Military Structures in the Landscape,
  158. (1985). Development of Radar for the Royal Navy’,
  159. (1938). Diary of the English Electric Company Ltd.
  160. (2005). Did RCM really work? The RAF Post Mortem Exercise”, Spring Lecture, Defence Electronics History Society,
  161. (1945). Die Deutschen Funkmessverfahren bis
  162. (1999). Directorate of Defence Acquisition The Acquisition Handbook, London: Ministry of Defence, 2 nd Edition,
  163. (2005). Directorate of Defence Acquisition, The Acquisition Handbook, London: Ministry of Defence,
  164. (2004). Discussion at the RAF Radar
  165. (1994). Dorset’s Radar Days, Swanage: Purbeck Radar Museum Trust,
  166. (1996). Dowding and Headquarters Fighter Command,
  167. (1969). Dowding and the Battle of Britain,
  168. (1940). Dowding had been deprived of Tizard, there were many indications of sound progress in the acquisition of night interception capability.
  169. (1992). Dowding should go”: changes in leadership, strategy and tactics at Fighter Command, July to December 1940, with special reference to the Big Wing controversy’ Ph D thesis,
  170. (2005). Dr E, interview with the author,
  171. (1999). Drifter Lunar Bow in 1926, mounting a sound collector for acoustic detector tests at sea, intended to give long-range early
  172. (2005). Driving the successful delivery of major defence projects: effective project control is a key factor in successful projects,
  173. (1986). Duel in the Dark,
  174. (1958). Duell im Dunkel,
  175. (2006). Dunkirk: Fight to the Last
  176. (1990). Dunkirk: The Incredible Escape,
  177. (1962). Earl of Avon, Facing the Dictators,
  178. (2003). Echoes and Reflections,
  179. (1999). Echoes from the Sky, Hythe, UK: Hythe Civic Society,
  180. (1999). Echoes from the Sky, Hythe: Hythe Civic Society,
  181. (1991). Echoes of War,
  182. (1996). Electrical Calculator Type Q, used for rapid derivation of heights and fitted to Chain Home stations on the eve of the Battle of Britain. (Colin Latham and Anne Stobbs, Radar: A Wartime Miracle,
  183. (1946). Enemy Coast Ahead,
  184. (1945). Engineering and the War Effort,
  185. (1980). England and the Aeroplane,
  186. (2004). Evidence to the House of
  187. (1937). Experimental Diary of Keith Wood,
  188. (2000). Ferranti: A History,
  189. (1990). Fifty Years of the Cavity Magnetron,
  190. (1939). Fig 3 Observer Corps post 2/O.2, Pulborough,
  191. (1941). Fighter Command Victory Claims of World War Two,
  192. (2004). Fighters: a Development and Combat History,
  193. (1940). For the night battle, the system was fatally flawed. Due to neglect of lines of development, one key piece of equipment, GCI, and its part of the organisation were absent until October,
  194. (2004). Frank Whittle; Invention of the Jet,
  195. (1988). From a Cat’s Whisker Beginning,
  196. (1939). From Birmingham to Berlin: Skill-transfer, Replication and Embedded Knowledge in the Development of Microwave Radar in Britain and Germany,
  197. (1918). From Dawn Till Dusk: the Story of 219
  198. (1999). From Innovation to Use; Ten Eclectic Theses on the
  199. from J Airey’s effects. Aerial masts: cased wooden model, also from J Airey’s effects, both preceding items passed to the writer by
  200. (2001). From Triode Oscillators to Pulse Modulated Radar: Sir Edward Appleton’s Involvement’,
  201. (2006). FRS, oral interview with author,
  202. (1964). Fun and Games,
  203. (2000). Funkers and Sparkers: Origins and Formation of the Y Service,
  204. (2000). Funkers and Sparkers: Origins and Formation of the Y Service, Bletchley Park Report 17,
  205. (1936). Government, Statement of Defence Expenditure,
  206. (1976). Grand Strategy,
  207. (1988). Ground Control Interception’ in Russell Burns (Ed.) Radar Development to 1945, London: Peter Peregrinus/IEE,
  208. (1993). Guardians: Britain’s Air Defence 1918-1993, London; Arms and Armour,
  209. (1932). H.T.,GPO Report 233, The further development of transmitting and receiving apparatus for use at very high radio frequencies, Part V: Interference by Aeroplanes,
  210. (1938). Handbook of Searchlight Equipment,
  211. (1935). Hansard: House o f Commons Debates,
  212. (2004). HC 360 Management of defence research and technology,
  213. (1936). Hill papers, AVHL I 2/4, Conference Agenda A.404,
  214. (1936). His Majesty’s Government, Statement of Defence Expenditure,
  215. (1985). History of Fighter Direction’,
  216. (1992). I can see the cat but he can’t see me!’, Marconi Radar Systems Notes and News,
  217. (1998). Identification Friend or Foe: A Brief History’, in The History of Identification Friend or Foe & Radio Direction Finding, Proceedings of the Fourth Annual Colloquium, Centre for the History of Defence Electronics,
  218. (1977). III receiver and indicator (right) and power unit (left).
  219. (1934). in H.T.Tizard papers, Imperial War Museum, London (IWM/HTT)
  220. (1939). In terms of radar for night air defence, the eight months of the so-called “Phoney War”, from 3
  221. (1959). In the US version of his memoirs only – Sir Robert Watson Watt, The Pulse of Radar,
  222. (2005). interview with the author,
  223. (2007). interview with the author, 6
  224. (1997). Introduction The objective of this Appendix is to introduce the non-acquisition specialist to the acquisition model developed since
  225. (1937). It is important to note here that Bowen’s memoirs 134 imply that RDF 1.5 was dropped before
  226. (1941). It may appear that Dowding was at fault, but timing in war is crucial. Following the decision to decentralise, taken by the Air Staff on 1 November and implemented after Dowding’s departure in mid-November, a target completion date of 1
  227. (1939). It was i n fact only after
  228. IWM/HTT 12/23, Note of visit to St. Athans (sic) on Thursday
  229. IWM/HTT 39, Dowding to Tizard 6.3.39. 93. TNA/PRO AIR 2/3404.
  230. (1975). Kampfgeschwader Edelweiss,
  231. (1975). Kampfgeschwader Edelweiss, London: Ian Allen,
  232. (2002). Kings in the North, London: Weidenfeld and Nicholson,
  233. (1957). Labour in Munitions Industries,
  234. (1990). Lancaster at War 4,
  235. (1957). Leader of the Few,
  236. (1934). Lindemann to Londonderry,
  237. (1971). London; Heinemann; 2 vols. by Churchill (1966-7) and 6 vols. by Gilbert
  238. (2000). London; IEE/Science Museum,
  239. (1950). London: War Office,
  240. (1940). Lunch at the “Square and Compass” (called the “Sine and Cosine” by the scientists) in Summer
  241. (1937). Manual of Air Tactics, London: Air Ministry,
  242. Manuscript logbook in possession of the author; relevant page is reproduced as
  243. (1985). Memoirs of a Computer Pioneer,
  244. (1986). memorandum to CSSAD, 27.2.35, reprinted in S.S. Swords, Technical History of the Beginnings of Radar, London: Peter Peregrinus/IEE,
  245. (1985). Memories of Radar Research’,
  246. (1991). Messenger Gods of
  247. (1990). Metres to Microwaves,
  248. (1990). Metres to Microwaves, London: Peter Peregrinus/ IEE,
  249. (1996). Military Innovation in the Interwar Period, Cambridge:
  250. (1936). Minister for Co-ordination of Defence: air defence: review of air defence scheme
  251. (1998). Ministry of Defence, IPT Pilot Guide: Smart Requirements Model, 3 rd edition,
  252. (2005). Ministry of Defence, The Acquisition Handbook, 6 th edition,
  253. (1999). Ministry of Defence, The Acquisition Handbook: A Guide to Smart Procurement, 2 nd edition,
  254. (2004). Ministry of Defence, The Smart Acquisition Handbook, 5 th edition,
  255. (1998). Ministry of Defence, The Strategic Defence Review,
  256. (1940). Multiple options were pursued to gain night interception capability. The pre-war doctrinal solution, Silhouette, was tested, modified, retested and abandoned only in
  257. (2001). National Audit Office, Building an Air Manoeuvre Capability: the Introduction of the Apache Helicopter,
  258. (1983). Networks of Power: Electrification in Western Society 1880-1930,
  259. (1940). New corporate mechanisms focussed on night interception were only belatedly created. Six months after the outbreak of war, in
  260. (1981). New Eye for the Navy: the Origin of Radar at the Naval Research Laboratory, Washington: US Government Printing Office,
  261. (1940). Note the words “our fatal mistake” in
  262. (1994). notes from CHiDE interview,
  263. (2001). notes from CHiDE interview, 29
  264. (1994). Nuclear Pursuits: the Scientific Biography of Wilfrid Bennett Lewis,
  265. (2006). OBE, interview by the author,
  266. (1957). Obituary: the Right Hon. Viscount Cherwell,
  267. (1940). of Britain: The Forgotten Months, November and
  268. (1946). of Leeds: I am grateful to Mr. Greenacre for an advanced copy of chapters I to IV of his research.
  269. (1998). Office (NAO) Reports Report of the Comptroller and Auditor General, Ministry of Defence, Major Projects Report 1997, London: National Audit Office,
  270. (2005). Office of Government Commerce,
  271. (2005). Office of Government Commerce, Managing Successful Projects with PRINCE2,
  272. (1992). on Christchurch airfield; Alan Hodgkin, Chance and Design, Cambridge:
  273. (1994). On Strategic Goals as Perceptual Filters: Interwar Responses to the Potential of Radar in Germany, the UK and the
  274. On the Development of Radio Technologies in Germany up to 1945’, in
  275. (1948). One Story of Radar,
  276. (1948). One Story of Radar, Cambridge:
  277. (1989). One-Oh-Eight Miller, Marsworth, Bucks: Bucks Literary Services,
  278. (1939). operational reports. AIR 2/4481 Scientific Committee on Air Defence: appointment of scientists to serve on Committee. AIR 2/4482 Scientific Committee on Air Defence: miscellaneous papers. AIR 2/4483 Aircraft detection: research programme.
  279. (2003). Operational Research in War and Peace,
  280. (2003). Operational Research in War and Peace: the British Experience from the 1930s to 1970, London:
  281. (2006). oral history interview with the author,
  282. (2006). Oral interview with Sir Bernard Lovell for this research,
  283. (2006). oral interview with the author,
  284. ountermeasures: RDF automatic device for the identification of friendly aircraft.
  285. (1964). p. 88: The Fated Sky,
  286. (1991). p.11; Gordon Kinsey, Bawdsey: Birth of the Beam, Lavenham, UK: Terence Dalton,
  287. (1940). p.114, quoting Beaverbrook papers
  288. (1946). p.82, quoting H.C.T. Dowding The Battle of Britain, Supplement to the London Gazette,
  289. (1939). papers EGBN 1/7, R Hanbury Brown A Suggestion for Fighter Control Memorandum,
  290. (1941). Perhaps fortunately for the British, the weather in January and
  291. personal recollections in Coales papers,
  292. personal recollections, in Coales papers,
  293. (1940). Pillar of Fire:
  294. (1999). Pioneers of Radar,
  295. (1962). Postscript to Science and Government,
  296. (1959). pp.139-41; Dudley Saward, The Bomber’s Eye,
  297. (1932). pp.4-5.; F.E.Nancarrow, A.H.Mumford, P.C.Carter, H.T.Mitchell, GPO Report 233, The further development of transmitting and receiving apparatus for use at very high radio frequencies Part V Interference by Aeroplanes,
  298. (2002). pp.9-16; A.P.Rowe, op. cit., p.8; S.S.Swords op. cit., pp.180-186; Michael Bragg, RDF1,
  299. (1999). Preist, quoted in Colin Latham and Anne Stobbs, Pioneers of Radar,
  300. (1938). preparation of Silhouette’s Essex trial area proceeded in a stately fashion.
  301. Previous experience may also be as important as personality. Chapter III illustrated that the airmen most involved
  302. (2003). Prof: the Life of Frederick Lindemann,
  303. (2007). Professor Hartley’s paper on ‘The Economics of UK Procurement Policy’ cited above was accessed from www.rmc.ca/academic/poli-econ/idrm/papers/Hartley-2.pdf on 7
  304. (2006). Professor Trevor Taylor, The Evolution of Smart Acquisition in the UK, unpublished paper,
  305. (1939). Progress in the last months before the outbreak of war in
  306. (1975). Project Cancelled, London: Macdonald and Jane’s,
  307. (1937). Pye himself had recognised these problems and in
  308. (1998). Radar and Air Defence in the 1930s’ 20 th
  309. (1998). Radar and Air Defence in the 1930s’,
  310. Radar and Radio C ountermeasures: RDF stations: weekly calibration reports.
  311. Radar and Radio Countermeasures: Method of deciding whether bombers located by RDF are friendly or hostile.
  312. Radar and Radio Countermeasures: Radio Direction Finding Equipment: provision.
  313. Radar and Radio Countermeasures: RDF stations: selection of firms and provision of finances.
  314. (2001). Radar and the Defeat of the Luftwaffe,
  315. (1991). Radar as a Case Study in Simultaneous Invention’,
  316. (1993). Radar at Sea,
  317. (1939). Radar at Ventnor
  318. (1988). Radar Development to 1945, London: Peter Peregrinus/IEE,
  319. (1987). Radar in World War II,
  320. (1994). Radar on the Isle of Wight, Scampton: Historical Radar Archive,
  321. (1992). Radar reflections from WW2, privately published,
  322. Radar Strategy; the Air Dilemma and British Politics
  323. (1997). Radar Strategy; the Air Dilemma and British Politics 1932-1937, Unpublished Ph.
  324. (1946). Radar Transmitters: A Survey of Developments’,
  325. Radar-based day interception capability: summary position at 3.9.1939. 208 Radar’s experience in the first months of war – the “Phoney War” – will now be examined.
  326. Radar-based day interception capability: summary position at 31.12.1938.
  327. (1936). Radar-based night interception capability: summary position at 31.12.1935.
  328. Radar-based night interception capability: summary position,
  329. (1996). Radar: A Wartime Miracle,
  330. (1996). Radar: How it all Began,
  331. (1947). Radial Time Bases: How they were developed for radar’,
  332. (1922). Radio Telegraphy’
  333. (1939). RAF Fighter Command Victory Claims of World War Two, Part I
  334. (1992). Reflections…on a Chain of Events,
  335. (1940). report by Sir J Salmond, Marshal of the RAF. AIR 2/7348 Enemy jamming of RDF stations. AIR 2/7445 Training of AI operators and mechanics. AIR 8/863 Battle of Britain: despatch by Sir Hugh Dowding.
  336. Review concerning the History of German Radar Technology up to 1945’, in
  337. (1948). Rise and Fall of the German Air Force,
  338. (1975). Robert Alexander Watson-Watt’
  339. (1975). Robert Alexander Watson-Watt’ Biographical Memoirs of Fellows of the Royal Society,
  340. (1966). Robert Wright) Years of Command,
  341. (1935). Rowe’s sketch of the radar trace,
  342. (1940). Royal Air Force Beam Benders No. 80 (Signals) Wing
  343. (1940). Royal Air Force Beam Benders: No. 80 (Signals) Wing
  344. (1939). Royal Air Force Bomber Command Losses of the Second World War,
  345. (1939). Royal Air Force Coastal Command Losses of the Second World War,
  346. (1936). Royal Air Force experiments at Biggin Hill (radio and sound location0
  347. (1991). Royal Air Force Historical Society, The Battle Re-fought,
  348. (1961). Science and Government,
  349. (1947). Science at War,
  350. (1994). Searching in the Dark,
  351. (1915). searchlights in the First World War faced the same meteorological challenges as those in the 1930s – though useful on clear nights, their beam was diffused by cloud into a milky pool.
  352. (1992). See for example Bill
  353. (1939). Silhouette proceeded under Farnborough’s project management, and with an A* priority, flight trials being completed at Rayleigh by February 7. It is significant to compare this A* rating with Bawdsey’s
  354. (2006). Silhouette sites in Essex were downloaded from www.unlockingessex.essexcc.gov.uk/, the Essex County Council Sites and Monuments Record, where the sites are misidentified as “floodlights”; the site was accessed on 18
  355. Sir Robert Watson-Watt, op. cit.,
  356. (1961). Sir Robert Watson-Watt, oral history interview,
  357. (2004). Some indication of the variety of aerial arrays tested can be seen from these drawings by Keith Wood. Not surprisingly, the aircraft became almost unflyable. (Keith Wood, Echoes and Reflections,
  358. (1989). Spitfire on m y Tail,
  359. (2005). Staff lists of the Telecommunications Research Establishment were accessed from the Penley Radar Pages, www.penleyradararchives.org.uk,
  360. (1939). Staffing problems of a different nature occurred with the Observer Corps. Unbelievably as it may seem, at the date of their mobilising for war on 24
  361. (1937). Stanmore: operational reports
  362. (1976). Strategy without Slide-Rule,
  363. (1992). Sweepers,
  364. Table 6: Radar-based day interception capability: summary position at 1.7.1940. The performance of the system under the pressures of battle is now examined.
  365. (1937). Table 8. Radar-based night interception capability: summary position,
  366. (1938). Table 9. Radar-based night interception capability: summary position,
  367. taped interview for CHiDE,
  368. (1999). taped interview for CHiDE, 17
  369. taped interview for CHiDE, BORCS 2002.229 Fennessey, Sir Edward, taped interview for CHiDE,
  370. (1986). Technical History of the Beginnings of Radar, London: Peter Peregrinus /IEE,
  371. (1986). Technical History of the Beginnings of Radar, London: Peter Peregrinus,
  372. (1939). Tedder’s copy to Tizard of his 8 th
  373. (1926). Test of the Existence of the Conducting Layer’ Physical Review,
  374. (1939). The “Phoney War”.
  375. The 1939/early 1940 Fighter Command Operations Room, converted from the ballroom in Bentley Priory. (Imperial War Museum,
  376. (1984). The Air Defence of Great Britain 1914-1918,
  377. (1920). The Air Defence of Great Britain,
  378. (2000). The area of the Battle of Britain in greater detail. (Roy Conyers Nesbit, The Battle of Britain,
  379. (1986). The Audit of War,
  380. (1989). The Battle of Britain Then and Now, 5 th. Edition, London; After the Battle,
  381. (1940). The Battle of Britain,
  382. (1940). The Battle of Britain, on conventional reckoning, opened on 15
  383. (1946). The Battle of Britain, Supplement to The London Gazette,
  384. (1994). The Battle of Britain:
  385. (1994). The Battle of Britain: New Perspectives,
  386. (1994). The Battle of Britain: New Perspectives, London: Arms and Armour,
  387. (2003). The Battle of Britain: Victory and Defeat,
  388. (1956). The Battle of Britain’
  389. (2006). The Birth of British Radar: the Memoirs of Arnold “Skip” Wilkins,
  390. (2006). The Birth of British Radar: the Memoirs of Arnold “Skip” Wilkins, Reading: Speedwell for Defence Electronics History Society:
  391. (1959). The Bomber’s Eye,
  392. (2000). The Burning Blue,
  393. (1946). The C.H. Radiolocation Transmitters’,
  394. (1933). The Cathode-ray Oscillograph
  395. (1940). The Chain Home pioneers complicated the issue by persisting in trying to make Chain Home interception work as late as October,
  396. (1970). The Challenge of War,
  397. (1942). The Command of the Air,
  398. the Committee, now including Lindemann, agreed to a visual detection conference being held
  399. The Contexts for the Development of Radar: a Comparison of efforts in the United States and the United Kingdom in the 1930s’, in Blumtritt
  400. (1947). The Cossor Story,
  401. (1986). The Cossor Story”, London: A.C.Cossor, 1947; Dr. Alfred Price, Cossor Radar: The First 50 Years, Harlow UK: Cossor Electronics Ltd,
  402. (1940). The critical incident of Tizard’s resignation then deprived Dowding of his key scientific resource. Tizard lost credibility during
  403. (1940). The customer requirement for minimum range was not adequately defined, verified or challenged. Dowding was both consistent and emphatic in his demand for a 100 yards or better minimum range. However, no-one appears to have asked him earlier than
  404. (1992). The Day War Broke Out, Bristol: Communications and Electronics Museum Trust,
  405. (1923). The Defence of London 1915-1918,
  406. (1957). The Defence of the United Kingdom,
  407. (2004). The Delineation of Defense Equipment Projects in the UK Ministry of Defence,
  408. (2004). The Delineation of Defense Equipment Projects in the UK Ministry of Defence’,
  409. (1946). The Design and Positioning of Aircraft Radar Aerials for Metric Wavelengths’,
  410. (1939). The development of air interception (AI) radar itself did not seriously begin until
  411. (1997). The Development of Methods of Detecting Hostile Aircraft at Night’; paper presented before the Newcomen Society at
  412. (1997). The Development of Methods of Detecting Hostile Aircraft at Night’; paper presented before the Newcomen Society at the Science Museum,
  413. (1983). The Development of Naval Radar 1935-1945’
  414. The Development of Naval Radar 1935-45’
  415. (1939). The Development of Radar Equipments for the Royal Navy,
  416. (1995). The Development of RAF Strategic Bombing Doctrine 1919-1939,
  417. (1990). The Duel,
  418. (2001). The Dynamics of Military Revolution 1300-2050, Cambridge:
  419. (1961). The Earl of, The Prof in Two Worlds,
  420. (2002). The Early days of Radar in the UK, Swanage: Penley Radar Archives,
  421. (1980). The Enemy is Listening,
  422. (1995). The Enigma Symposium,
  423. (2006). The Essex Sites and Monuments Record website may be accessed by internet at www.unlockingessex.essexcc.gov.uk/. 465 16. Oral interviews with Sir Bernard Lovell, Dr.
  424. (2006). The Evolution of Smart Acquisition in the United Kingdom’, Paper prepared for the International Seminar on Defence Finance and Economics,
  425. The experimental installation of AI, as demonstrated to Dowding, sketched in the Touch memorandum (TNA/PRO AIR 20/1464). 404 Fig.
  426. (1960). The Eyes of the Few,
  427. (1952). The Fated Sky,
  428. The Filter Room, by contrast, is very rarely considered. The room, shown in Fig. 51, is described as noisy and high pressure, in t he attempt to decide upon the correct interpretation of raw data from
  429. (1986). The First 50 Years,
  430. The first of those questions was whether the MoD model, and specifically its lines of development component, is validated or vitiated by the facts of radar acquisition in the 1930s.
  431. (1988). The First Operational Radar’, in Burns, Russell (Ed.), Radar Development to 1945, London: Peter Peregrinus/IEE,
  432. (1992). The First Pathfinders,
  433. (1941). The first six GCI stations to be opened, as at
  434. (1978). The German “Mattscheibe” concept, where loosely-controlled “Wilde Sau” fighters engaged British bombers silhouetted against searchlight-lit clouds – and the burning city.
  435. (1917). The Gotha Summer: German Daytime Raids on
  436. (1939). The Graf Zeppelin photographed from RAF Dyce, Scotland – the station stamp is clearly legible – while on its
  437. (2002). The Growth of Fighter Command 1936-1940, London: Frank Cass,
  438. (1935). The History of Air Intercept Radar and the British Night Fighter,
  439. (1935). The History of Air Intercept Radar and the British Nightfighter,
  440. (2004). the House of Commons Defence Committee was advised on 12
  441. (2007). The Hulsmeyer study by Arthur Bauer in www.cdvandt.org, previously www.xs4all.nl/ was accessed on 14
  442. (1940). the Impact of Sholto Douglas.
  443. (1997). The Invention that Changed the World,
  444. (1997). The Invention that changed the World, London: Little, Brown and Company,
  445. (2000). The Life and Times
  446. (2000). The Life and Times of A.D.
  447. (1997). The Lion Has Wings,
  448. (2000). The Luftwaffe Fighters’
  449. (2000). The Luftwaffe’s Assault’,
  450. (2000). The Most Dangerous Enemy,
  451. (1991). The Myth of the Blitz,
  452. (1990). The Narrow Margin,
  453. The National Archives / Public Record Office, Kew (TNA/PRO) TNA/PRO AIR 20/1464. 12. Churchill Archives Centre, Churchill College,
  454. The National Archives/Public Record Office, Kew (TNA/PRO)
  455. (1995). The Navy’s Type 79 masthead radar aerial. Each of the dipoles is 12 feet long, making the installation unsuitable for small vessels.
  456. (1940). The Night Blitz
  457. (2004). The Official History of British Sigint 1914-1945,
  458. (2004). The Official History of British Sigint 1914-1945, Milton Keynes:
  459. (1940). The Operations Room at Fighter Command HQ, Bentley Priory, Stanmore. This is the earlier “Ops Room”, converted from the original ballroom, and superseded by the purpose-built underground Operations Room (“The Hole”) only in
  460. The Operations Room at Sopley in its 1940 form, housed in a truck. (Penley Archive,
  461. (1940). The organisational transfer of the scientists to Beaverbrook’s Ministry of Aircraft Production (MAP) as MAP Research Establishment (MAPRE) in
  462. (1998). The Origin and Development of Allied IFF During World War II’,
  463. (1963). The Origins and Development of Operational Research in the Royal Air Force,
  464. (1939). the origins of CHL as a War Office equipment would have unforeseen consequences.
  465. (1973). The Origins of Strategic Bombing,
  466. (1990). The Paladins,
  467. (2006). The papers by Russell Burns listed above were accessed from www.newcomen.org on 14
  468. (1941). The position at the end of June,
  469. (1959). The Prof,
  470. (1962). The Professor and the Prime Minister,
  471. (1991). The Radar Army,
  472. (1989). The Radar War,
  473. (1989). The Radar War; Germany’s Pioneering Achievement,
  474. (1939). The record is quite explicit. In
  475. (2007). The request for so much money for Silhouette had certainly stimulated discussions between Dowding
  476. (1953). The Royal Air Force 1939-45: The Fight at Odds,
  477. (1953). The Royal Air Force 1939-45: The Fight at Odds, (Vol. I of the Official History: The Royal Air Force 1939-1945).London:
  478. (1979). The Royal Air Force and Two World Wars,
  479. (1997). The Royal Air Force Builds for War,
  480. (1997). The Royal Air Force Builds for War; a History
  481. (2005). The Royal Air Force: An Encyclopedia (sic)
  482. The Royal Air Force: An Encyclopedia (sic) of the Inter-War Years,
  483. The scale of the new mast arrangement, 1937. (Imperial War Museum, CH 15173). 177 Fig 27. Cossor Chain Home receiver RF7. (BAE Intsys). Fig 28. MetroVick Chain Home transmitter, power amplifier stages.
  484. (1938). The second need, Identification Friend or Foe (IFF), was clearly delineated by Nutting, the RAF Director of Signals, in
  485. (1966). The Second World War 1939-1945: Royal Air Force Maintenance, London; Ministry of Defence,
  486. (1948). The Second World War,
  487. (1986). The Secret Life of
  488. The Secret Radar Factory, forthcoming, 2007; Mr Exton kindly loaned an advance copy for this research. 67. IWM/HTT 32. 68. TNA/PRO AIR 24/507. 69.
  489. (2007). The Secret Radar Factory, Privately published, forthcoming,
  490. (1978). The Secret War,
  491. (1991). The Setmakers,
  492. (1980). The Shadow of the Bomber, London: Royal Historical Society,
  493. The sketch made by Touch of the equipment used on the early flights survives in extremely poor condition, and is reproduced here for the first time.
  494. (1995). The Sky Sweepers,
  495. The stage was set for a major conference on Night Defence on 21 st July 166, chaired by Sholto Douglas and attended
  496. (1985). The Story of IFF,
  497. (1946). The Super-Regenerative Receiver in the Linear Mode’,
  498. (1939). The system which Bawdsey was struggling to install by 1
  499. (1999). The Thames estuary chain as eventually constructed. (Colin Latham and Anne Stobbs, Pioneers of Radar,
  500. The three Bawdsey secretaries whose success as “guinea pig” radar operators led to the recruitment of WAAF for this role. They are, from the
  501. (1974). The Ultra Secret London Weidenfeld and Nicholson,
  502. (1946). The Use of a Common Aerial for Radar Transmission and Reception on 200 Mc/s’,
  503. (1995). The W.O. “Y” Group D/F Network’,
  504. (1931). The War in the Air, Vols. III and V,
  505. (1939). The Winning Edge: Naval Technology in Action,
  506. (1994). The Zeppelin
  507. (1994). The Zeppelin in Combat,
  508. (2002). They Swept the Skies,
  509. (1940). This also failed, and Tizard confirmed Silhouette’s unmourned death on 4
  510. (1939). This minimum range requirement is at the root of a charge levelled by the historian David Zimmerman against Bowen, whom he accuses of “deception” 2 when demonstrating AI to Dowding in
  511. (1994). This photograph of the early transmitter used for both ASV and AI experiments is extremely rare, and has previously been published once only, in a limited-edition work. (Norman Cordingly, Era of the Nocturnal Blip,
  512. (1940). This thesis will illustrate that significant resources were devoted to testing Silhouette, which was eventually discarded only in April,
  513. (1986). Thorn EMI; 50 Years of Radar, Hayes: Thorn EMI,
  514. (1938). Though a clue is in the Official History 227, a further previously unreferenced file 228 sets out the events. An original specification for the insulators had been issued in
  515. (1957). Three Steps to Victory,
  516. (1957). Three Steps to Victory, London; Odhams,
  517. (1957). Three Steps to Victory, London: Odhams,
  518. (2001). TNA/PRO AIR 10/5485, p.26; D.
  519. TNA/PRO AIR 2/2202, Rowe to Watson Watt,
  520. TNA/PRO AIR 2/2615. 23. Sir Robert Watson-Watt, op. cit.,
  521. TNA/PRO AIR 2/2918; TNA/PRO 41/12 pp.63-4; AIR 10/5485 pp.35-6. 122. Derek Wood, op.cit, p.58. 123. Sir Robert Watson-Watt, op. cit.,
  522. TNA/PRO AIR 2/2946; IWM/HTT 10/19,
  523. TNA/PRO AIR 2/2965; AIR 20/2272: AVIA 7/3269. 256 159.
  524. TNA/PRO AIR 2/3404. 22. Churchill Archives Centre, Churchill College,
  525. TNA/PRO AIR 20/1464. 35. See Chapter III, p.87. 36. Sir Bernard Lovell, Foreword to David Zimmerman,
  526. TNA/PRO AIR 20/181. 90. Ibid. 91. Churchill Archives Centre, Churchill College,
  527. TNA/PRO AIR 20/189; IWM/HTT236 is the copy of the RAF Review of RDF Stations contained in Tizard’s papers.
  528. TNA/PRO AIR 20/222. 44. TNA/PRO AIR 2/3377.
  529. TNA/PRO AIR 20/2267;
  530. TNA/PRO AIR 20/2268. 36. E.G.Bowen, op. cit.,
  531. TNA/PRO AVIA 10/47; AVIA 7/3590;
  532. TNA/PRO AVIA 10/47; AVIA 7/3590; AIR
  533. TNA/PRO AVIA 15/218. 225. Unpublished research paper by S/Ldr.
  534. (1957). TNA/PRO AVIA 46/46. 251 18. Sir Robert Watson-Watt, Three Steps to Victory,
  535. (2006). TNA/PRO AVIA 53/301; also Sir Robert Watson-Watt, op. cit., p. 81 153. TNA/PRO AIR20/195; Sir Robert Watson-Watt, op. cit., p. 81; Colin Latham and Anne Stobbs, The Birth of British Radar; the Memoirs of Arnold ”Skip” Wilkins,
  536. TNA/PRO AVIA 7/3177. 395 56.
  537. TNA/PRO AVIA 7/396; AIR 10/5485 pp.28-9. 252 43. TNA/PRO AIR 2/2201, Woodward Nutt to Rowe,
  538. TNA/PRO CAB 21/1101. 22. E.G.Bowen op. cit.,
  539. TNA/PRO ZHC 2/821 Col. 1398 Hansard: House of Commons Debates.
  540. (1935). to 45: personal recollections of the early days,
  541. (1935). to CSSAD, reproduced as Appendix E of S.S.
  542. to October 1940: The Battle of Britain.
  543. (1940). Today’s MoD acquisition model has interoperability as its “overarching line of development”, and in this area the day interception system was
  544. (1996). Top Secret Exchange,
  545. (1990). Townshend, The Battle of Britain,
  546. (1994). Tracking the History of Radar,
  547. (1939). Turning to the question of Bowen’s “deception” of Dowding at the
  548. (2000). Twentieth Century Fortifications in
  549. (1992). Understanding Radar,
  550. (1956). United States Army in World War II: The Signal Corps. The Emergency, Washington: Office of the Chief of Military History,
  551. (1991). unpublished Ph D thesis,
  552. (2006). Using the contract to maximise the likelihood of successful project outcome,
  553. (1976). V: The Prophet of Truth,
  554. (1983). VI: Finest Hour 1939-1941,
  555. (1988). Video and DVD The Secret War, a documentary originally made for BBC TV (BBC TV Enterprises,
  556. (1939). Vol. V Fighter Control and Interception,
  557. (2004). Warfighting and Disruptive Technologies: Disguising Innovation,
  558. (1993). Watching the Skies,
  559. (1959). Watson-Watt, The Pulse of Radar,
  560. (1940). When night interception radar is considered, the over-rapid introduction of AI
  561. where Wilkins records his amazement at the ADRC decision
  562. (1925). Winged Defense: The Development and
  563. (1976). Winston Churchill Vol. V: The Prophet of Truth,
  564. (1998). Within the DPA “supplier” area, there was after
  565. (2005). Within two years, this list had been expanded to eight by the inclusion of Organisation and of Information, and was in
  566. (2000). Without Enigma,
  567. (1990). Wood with Derek Dempster,
  568. (1963). Years of Combat,
  569. (1966). Years of Command,
  570. (1984). Zeppelin dirigible: the scale of the airship and its slow speed caused this target to be easily acquired and held by searchlights.
  571. (1967). Zur Geschichte der Radartechnik

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