DOCSLIB.ORG

Type Numbers of Naval Radar Sets, Operational Or Designed, Derek

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Type Numbers of Naval Radar Sets, Operational Or Designed, Derek Appendix: Type Numbers of Naval Radar Sets, Operational or Designed, 1935--45 Derek Howse IFF - Identification Friend or AI - Air interception Foe ASV - Air to surface vessel INT - Interrogator BCN -Beacon LA -Low angle CCA -Carrier Controlled Ap- Rg. - In the ranging mode proach (Types 279 and 281) FD - Fighter direction Rx -Receiver GA -Gunnery fire control, Sw. -sweeps aircraft, high angle (or TI - Target indication combined low angle Tx - Transmitter and high angle) WA - Warning of aircraft GB -Gunnery fire control, WC - Warning (combined air- barrage craft and surface) GC -Gunnery fire control, Wg. - In the warning mode close range, high angle (Types 279 and 281) GS -Gunnery fire control, WS - Warning of surface surface (i.e, low angle) craft HA - High angle :::::: - Variable around this Ht-fndr - Height-finder frequency In the numbering of Naval radar sets, the first, second and third major modifications to the basic set were indicated by the suffixes M, P and Q respectively, ego Type 286P. The suffix B indicated adaptation to single-mast working. Information not available is generally marked with a dash. 309 w Type Classifimtion Wavelength Freq. Power To sea ...... number nominal (MHz) (kW) (abandoned) Description 0 79 WA 75m 39-42 70 1938 Long range air warning for large shi ps. See 279. 79B WA 75m 39-42 70 1941 Single-masted version of 79 (originally 79M). 91 Jammer SOcm-3m 90-600 lQ--25w l 1941 Jamming of German metric and decimetric radar. Initially sine- wave modulation, ultimately noise . 241 INT 15m 214 - 1941 For use with 281 & IFF Mk 2N. 242 Int 15m 182 or 179 1 1943 For use with WS and WC sets and IFF Mk 3. 242M INT 15m 182 or 179 2-10 1943 Ditto 243 INT 15m 179 or 171 1 1943 For use with 281 & IFF Mk 3. 244 INT 15m - - 1943 For use wit h US Type SL & IFF Mk 3. 245 !NT 15 m -- 1944 For FD ships. 251/M/P BeN 15m 176 or 177 7 1942 Modified RAF transponder coded to give ships' identity. 252 IFF 15m 38-52 & - 1942 IFF Mk 2 in ships. 195-220 253/P IFF 15m Sw.157-187 10 1943 IFF Mk 3 in shi ps . Sweeps frequency. 253S IFF 15m Sw.157-187 10 1943 253 when fitted ashore. 255 BeN 15m 214 - 1944 Marker bu oy for use only wi th 291. 256 BeN 15m 214 - 1944 Shore radar beacon for use only with 291. 257 CCA 3cm - - 1945? Carrier controlled approach (BABS). 258 BeN 15m 179/182 - 1943 Mk 3 shore radar beacon responding to 242. 259 BeN 15m -- 1944 Mk 3 beacon for carriers responding to Al Mk 10. 261 WS 50cm -- (1941) Based on 282. 261W WS 3cm - - (1942) Early 3cm development, leading to 267W. 262 GC 3cm :::::: 9650 20 1945 STAAG, CRBFD 263 GB 3cm -- (1945) Au to-barrage for main or secondary armament, replacing 283. 267W/MW/PW WS/WC 3cm & ::::::9670 15-25 1945 Submarines. Hy brid WS/WC with common disp lay. 15m & 214 & 100 268 WS 3cm 9400 - 1945 For coastal forces, replacing 291U. 269 GS 3cm 10000 - (1943) Modified 3-em AI set for coastal forces gunnery . 271/M/P WS 10cm ~3000 5-lO 1941 Small ships. 271Q WS 10cm ~3000 70 1943 Small ships. 272/M/P WS 10cm ~3000 5-lO 1941 Small cruisers, carriers, sloops, etc. 273/M/P WS 10cm ~3000 5-10 1941 Large ships. 273Q WS lOcm ~3000 70 1943 Large ships. 274 GS lOcm ~3300 400 1944 Main armament directors, replacing 284. 275 GA lOcm 3530 400 1945 HA directors (HA/LA directors in destroyers), replacing 285. 276 WS lOcm 3000 500 1944 Small ships, replacing 271/2. 277/P/Q WS 10cm 3,000 500 1944 Replaced 271/2/3. Could measure approximate elevation. 277S WS/lowair lOcm 3000 SOO 1943 277 permanent shore installation for surface and low air. 277T WS/lowair lOcm 3000 500 1943 Trailer-mounted 277. 'Monrads'. 279 WA 75m 39-42 Wg.70 1940 Long-range air warning for large ships. Type 79 with gunnery Rg.6O ranging. 280 WA/GA 3.6m 82 25 1940 Based on Army GLl . In Carlisle and 'Bank' class ships only. 281 WA 35m 86-94 Wg.600 1940 Long-range air warning for large ships. Rg.l ,OOO 281B WA 35m 86-94 600 1943 Single-masted version of 28t. 281BM/BP/BQ WA 35m 86-94 350 1945 Continuous rotation. 282 GC 50cm ~600 15 1941 Porn-porn directors, etc. 282Ml/M2/M3 GC 50cm ~600 60 or 80 1942 Increased power. 282M4 GC 50cm ~600 60 or 80 1942 Beam-switching. 282Q GC 50cm ~600 150 - Beam-switching and increased power. 283/M GB 50cm ~600 150 1943 Auto-barrage for main or secondary armaments. 284/M/P GS 50cm ~600 As 282 1940 Main armament directors. 285/M/P/Q GA 50cm ~600 As 282 1940 HA directors (HA/LA directors in destroyers). 286M/P WC 15m 214 7 1940 Small ships. 286M fixed aerial, 286P revolving aerial 286PQ WC 15m 214 100 1943 Small ships. Higher power. 286U WC 15m 214 7 1941 Coastal forces. 286W WC 15m 214 7 1941 Submarines. 287 Minewatch 50cm ~600 15 1941 284 adapted for minewatching ashore. VJ 288(1) GC 50cm ~600 15 (1941) 284 adapted for Armed Merchant Cruisers. ...... ...... VJ Type Classification Wavelength Freq. Power To sea ..... number nominal (MHz) (kW) (abandoned) Description N 288(2) GC 5Dem ~600 15 - 284 adapted for training ashore. 289 GA 70cm ~430 - 1940 Dutch. Fitted in Isaac Sweers and Heemskerck only. 290 WC 15m 214 100 1941 Small ships, replacing 286 but abandoned in favour of 291. 291/M WC 15m 214 100 1941 Small ships, replacing 286/290. 291U WC 15 m 214 100 1943 Coastal forces. 291W WC 15m 214 100 1943 Submarines. 293/M WC/TI 10cm 3000 500 1944 Destroyers and above. Replaced 271/2/3. 294 WC/FD lOcm 3000 - (1944) Combined plan-display and heightfinding, replacing 277. 295 WC/FD lOcm 3000 - (1944) Higher-powered 294. 650 Jammer ~6m ~ 50 IG-20w 1944 Jamming of air-launched FX 1400 and HS 293 anti -ship guided weapons. Sine-wave mod ulation. 651 Jammer ~6m ~50 2 x lkw 1944 As Type 650 bu t capable of handling muIti- missile attack. CW mod ulation. 930 GS/splash I Dem 3000 7 1945 Splash-spotting; Naval version of Army CA No.1, Mk.5 ('William'). 931 GS/splash 1.25cm ~24000 - 1945 Splash-spotting, Canadian. 940/1 INT 15m 209 1 1944 G-band interrogator with 281BP/BQ. 951 BeN ---- Marker beacon for use with lOcm WS and WC sets . 952 BCN Rx 3cm Rx ~9400 - 1945 Portable combined ops . navigational. Triggered by X-band, Tx 15m Tx 182 response on Type 242. 960 WA 3.4m ~88 450 1946 Long-range air warning for large ships, replacing 281/79/279. 961 CCA 3cm ~9320 - - Carrier controlled approach. Modified ASV II. 970 WS 10cm ~3300 - 1943 Combined operations. Modified RAF H2S II. 971/M WS 3cm ~9320 - 1945 As 970 but based on H2S III. 972 WS 3cm ~9375 - 1946 Surveying. 980 WC/ FD 1Oem 3000 500 (1949) Fighter direction plan display, replacing 294/5. 981 Ht-fndr 10cm 3000 500 (1949) Fighter direction heightfinder, replacing 294/5. 990 WC 10cm 3000 - (1944) Low cover, to go wit h 960, 294/5. 992 TI IDem 3000 - 1959 Target indica tion, replacing 293. American sets fitted in British ships SA WA 15m 1943 Captain and Colony-class frigates . SG WS 10cm ~3195 1943 Escort carriers, Indomitable, Victorious. SJ WS 10cm 1945 Submarines Tiptoe and Trump. SK WA 15m 1943 Escort carriers. SL WS 10cm 1943 Cap tain and Colony-class frigates. SM-1 FD 10.7cm ~ 2 800 1944 Carriers Indomitable, Ocean; FD ships Boxer, Palomares. SO WS 10cm 1944 Coas tal forces, SQ WS 12cm 1945 Big ships' portable 'after-action' set. Naval Airborne Radar ASV Mk.II ASV 15 m 176 - 1940 Standard RAF versio n. ASV Mk.IIN ASV 15m 214 7-22 1941 Nava l versio n of ASV II. Swordfish, Walrus, Albacore, Barracuda ASV Mk.XI ASV 3cm - 35-50 1943 Swordfish III, Barracud a III. ASB ASV 15 m 214 - 1944 US copy of ASV lIN. Avenger. ASH ASV/AI 3cm ~9375 35 1944 US A NIAPS-4. Avenger, Firefly. Barracuda V. AI Mk.IV AI 15m - 10 1944 Fulmar. AlA AI 3cm - - 1945 US ANIAPS-6. Hellcat. Principal source: Adm iralty, CB 4497, Simple Guide to Naval Radar (1949) . w ...... I Depending upon frequ ency. w Glossary of Technical Terms and Abbreviations Used in This Work AA Anti-aircraft AB Able Seaman ABU Auto-barrage unit for radar-controlled blind-fire ACNS Assistant Chief of Naval Staff Acorn valve A small high-frequency valve about 'l-In in diameter shaped like an acorn, with the leads arranged radially around the middle of the envelope ADEE Air Defence Experimental Establishment (Army) Admiralty Divisions of the Naval Staff were responsible for operational organization matters, such as the Operations, Plans, Training and Staff Duties, and Naval Intelligence Divisions, reported to the First Sea Lord through the Deputy and Assistant Chiefs of Naval Staff. Admiralty Departments generally responsible for materiel matters, such as the Naval Ordnance, Naval Construction, Scientific Research, and Signals Departments, reported to the Controller. Operational sections of the Signal Department and the Naval Ordnance Department were in London, materiel sections in Bath from the outbreak of war ADP Air Defence Position ADR Aircraft Direction Room ADRDE Air Defence Research and Development Establishment (Army) (formerly ADEE, qv) AFC Automatic Frequency Control AFCC Admiralty Fire Control Clock AFCT Admiralty Fire Control Table AFO Admiralty Fleet Order AGC Automatic Gain Control, in a receiver AGE Admiralty Gunnery Establishment AI Air interception (airborne radar) AIC Action Information Centre AIO Action Information Organization AITC Action Information Training Centre A/I Anti-jamming (techniques) AMRE Air Ministry Research Establishment, later the Telecommunica­ tions Research Establishment ANCXF Allied Naval Commander-in-Chief Expeditionary Force AOP Angle of presentation (of an aircraft target) AOR Air Operations Room ARL Admiralty Research Laboratory ARM Availability, Reliability, Maintainability (of electronic equip­ ment) ARP Auto-radar plot A/S Anti-submarine A-scan See Display ASCBS Admiral Superintendent, Contract-Built Ships 315 316 Glossary Asdic Underwater detection equipment using acoustic waves .
Load more

Recommended publications
  • Royal Air Force Historical Society Journal 29
    ROYAL AIR FORCE HISTORICAL SOCIETY JOURNAL 29 2 The opinions expressed in this publication are those of the contributors concerned and are not necessarily those held by the Royal Air Force Historical Society. Copyright 2003: Royal Air Force Historical Society First published in the UK in 2003 by the Royal Air Force Historical Society All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical including photocopying, recording or by any information storage and retrieval system, without permission from the Publisher in writing. ISSN 1361-4231 Typeset by Creative Associates 115 Magdalen Road Oxford OX4 1RS Printed by Advance Book Printing Unit 9 Northmoor Park Church Road Northmoor OX29 5UH 3 CONTENTS BATTLE OF BRITAIN DAY. Address by Dr Alfred Price at the 5 AGM held on 12th June 2002 WHAT WAS THE IMPACT OF THE LUFTWAFFE’S ‘TIP 24 AND RUN’ BOMBING ATTACKS, MARCH 1942-JUNE 1943? A winning British Two Air Forces Award paper by Sqn Ldr Chris Goss SUMMARY OF THE MINUTES OF THE SIXTEENTH 52 ANNUAL GENERAL MEETING HELD IN THE ROYAL AIR FORCE CLUB ON 12th JUNE 2002 ON THE GROUND BUT ON THE AIR by Charles Mitchell 55 ST-OMER APPEAL UPDATE by Air Cdre Peter Dye 59 LIFE IN THE SHADOWS by Sqn Ldr Stanley Booker 62 THE MUNICIPAL LIAISON SCHEME by Wg Cdr C G Jefford 76 BOOK REVIEWS. 80 4 ROYAL AIR FORCE HISTORICAL SOCIETY President Marshal of the Royal Air Force Sir Michael Beetham GCB CBE DFC AFC Vice-President Air Marshal Sir Frederick Sowrey KCB CBE AFC Committee Chairman Air Vice-Marshal
    [Show full text]
  • THE RADAR WAR Forward
    THE RADAR WAR by Gerhard Hepcke Translated into English by Hannah Liebmann Forward The backbone of any military operation is the Army. However for an international war, a Navy is essential for the security of the sea and for the resupply of land operations. Both services can only be successful if the Air Force has control over the skies in the areas in which they operate. In the WWI the Air Force had a minor role. Telecommunications was developed during this time and in a few cases it played a decisive role. In WWII radar was able to find and locate the enemy and navigation systems existed that allowed aircraft to operate over friendly and enemy territory without visual aids over long range. This development took place at a breath taking speed from the Ultra High Frequency, UHF to the centimeter wave length. The decisive advantage and superiority for the Air Force or the Navy depended on who had the better radar and UHF technology. 0.0 Aviation Radio and Radar Technology Before World War II From the very beginning radar technology was of great importance for aviation. In spite of this fact, the radar equipment of airplanes before World War II was rather modest compared with the progress achieved during the war. 1.0 Long-Wave to Short-Wave Radiotelegraphy In the beginning, when communication took place only via telegraphy, long- and short-wave transmitting and receiving radios were used. 2.0 VHF Radiotelephony Later VHF radios were added, which made communication without trained radio operators possible. 3.0 On-Board Direction Finding A loop antenna served as a navigational aid for airplanes.
    [Show full text]
  • The Auction Will Take Place at 9 A.M. (+8 G.M.T.) Sunday 18Th October 2020 at 2/135 Russell St, Morley, Western Australia
    The Auction will take place at 9 a.m. (+8 G.M.T.) Sunday 18th October 2020 at 2/135 Russell St, Morley, Western Australia. Viewing of lots will take place on Saturday 17th October 9am to 4pm & Sunday 18th October 7:00am to 8:45am, with the auction taking place at 9am and finishing around 5:00pm. Photos of each lot can be viewed via our ‘Auction’ tab of our website www.jbmilitaryantiques.com.au Onsite registration can take place before & during the auction. Bids will only be accepted from registered bidders. All telephone and absentee bids need to be received 3 days prior to the auction. Online registration is via www.invaluable.com. All prices are listed in Australian Dollars. The buyer’s premium onsite, telephone & absentee bidding is 18%, with internet bidding at 23%. All lots are guaranteed authentic and come with a 90-day inspection/return period. All lots are deemed ‘inspected’ for any faults or defects based on the full description and photographs provided both electronically and via the pre-sale viewing, with lots sold without warranty in this regard. We are proud to announce the full catalogue, with photographs now available for viewing and pre-auction bidding on invaluable.com (can be viewed through our website auction section), as well as offering traditional floor, absentee & phone bidding. Bidders agree to all the ‘Conditions of Sale’ contained at the back of this catalogue when registering to bid. Post Auction Items can be collected during the auction from the registration desk, with full payment and collection within 7 days of the end of the auction.
    [Show full text]
  • Royal Navy Warrant Officer Ranks
    Royal Navy Warrant Officer Ranks anisodactylousStewart coils unconcernedly. Rodolfo impersonalizing Cletus subducts contemptibly unbelievably. and defining Lee is atypically.empurpled and assumes transcriptively as Some records database is the database of the full command secretariat, royal warrant officer Then promoted for sailing, royal navy artificer. Navy Officer Ranks Warrant Officer CWO2 CWO3 CWO4 CWO5 These positions involve an application of technical and leadership skills versus primarily. When necessary for royal rank of ranks, conduct of whom were ranked as equivalents to prevent concealment by seniority those of. To warrant officers themselves in navy officer qualified senior commanders. The rank in front of warrants to gain experience and! The recorded and transcribed interviews help plan create a fuller understanding of so past. Royal navy ranks based establishment or royal marines. Marshals of the Royal Air and remain defend the active list for life, example so continue to use her rank. He replace the one area actually subvert the commands to the Marines. How brave I wonder the records covered in its guide? Four stars on each shoulder boards in a small arms and royals forming an! Courts martial records range from detailed records of proceedings to slaughter the briefest details. RNAS ratings had service numbers with an F prefix. RFA and MFA vessels had civilian crews, so some information on tracing these individuals can understand found off our aim guide outline the Mercantile Marine which the today World War. Each rank officers ranks ordered aloft on royal warrant officer ranks structure of! Please feel free to distinguish them to see that have masters pay.
    [Show full text]
  • North Hill in World War II Minehead, Somerset SCHOOLS RESOURCE PACK for Key Stages 2 & 3
    BACKGROUND READING AND TEACHER SUPPORT & PREPARATION North Hill in World War II Minehead, Somerset SCHOOLS RESOURCE PACK for Key Stages 2 & 3 SECTION 1 – NORTH HILL BEFORE AND DURING WORLD WAR 2 P1 -3 SECTION 2 – TANKS IN WORLD WAR 2 P4-5 SECTION 3 – TANK TRAINING IN WORLD WAR 2 P6-9 SECTION 4 – RADAR IN WORLD WAR 2, NORTH HILL RADAR STATION P10-13 SOURCES, VISUALS AND LINKS – TANK BACKGROUND READING AND TASKS P14-15 TEACHER SUPPORT AND PREPARATION P16 -20 _______________________________________________________________________________________________ BACKGROUND READING SECTION 1 – NORTH HILL BEFORE AND DURING WORLD WAR 2 WORLD WAR 2, 1939 -45 On September 1st 1939 Nazi Germany invaded Poland, two days later the British Prime Minister, Neville Chamberlain, declared war on Germany. Britain joined with France and Poland, followed by the countries of the British Empire and Commonwealth. This group came to be known as ‘the Allies’. In 1941 they were joined by America and Canada, whose armies came to Minehead to train. Britain was badly-equipped for war and there was an urgent need for military training. Existing facilities were outdated and land for tank training was in short supply. North Hill became one of five major new tank training grounds in the country. NORTH HILL AS A MILITARY SITE During the Iron Age (700 BC – 43 AD), and the reigns of Henry VIII and Elizabeth I North Hill was considered an important military site. A beacon was set up above Selworthy in 1555, and in the late 1800s a large military training camp was established. The area continued as a training ground right up to the First World War.
    [Show full text]
  • Taking Into Consideration All Other Factors, Evaluate the Extent to Which Bletchley Park Contributed to Victory in Europe, 1939-45
    Taking into consideration all other factors, evaluate the extent to which Bletchley Park contributed to victory in Europe, 1939-45. (2,199 words) “ULTRA was essential to victory in the battle of the Atlantic, the war in Africa and the landings in Sicily and Normandy.”1 “ULTRA, in my humble opinion, has been exaggerated in importance.”2 “… [ULTRA] shortened the war by not less than two years and probably by four years.”3 Debate over the importance of the decryption of high-level Axis signals traffic, particularly the Enigma and Fish cyphers, at Bletchley Park (codenamed ULTRA) - began as soon as the secret was revealed in 1974 and continues today. The Battle of Britain, the North African campaign and the Battle of the Atlantic have all been particularly credited as depending on ULTRA4. The air campaign in the summer of 1940 is the easiest to address: ULTRA provided useful confirmation of the German order of battle, but little more5. Indeed, Dowding was not even cleared for ULTRA until after the battle6: the key intelligence asset for the Battle of Britain was the listening posts of the “Y Service” monitoring the working chatter of the Luftwaffe’s frontline7. 1 Deutsch H, “The Influence of Ultra on World War II”, Parameters, December 1978 2 Frankland N, “Some Thoughts About and Experience Of Official Military History”, The Journal Of The Royal Air Force Historical Society No. 17 3 Hinsley H, “The Influence of ULTRA in the Second World War”, Security Group Seminar, 19 Oct 1993 4 Deutsch. 5 Bungay S, “The Most Dangerous Enemy”, 2000 Aurum 6 Lewin R, “Ultra Goes to War”, 1978 Grafton 7 Jones R V, “Most Secret War”, 1978 Hamish Hamilton Even before the revelation of ULTRA, historians such as Roskill8 and Taylor9 credited attacks on Axis shipping – particularly those based from Malta – as decisive in containing, then defeating, the Deutsche Afrika Korps (DAK), citing Rommel’s warning in May 1941 that “without Malta the Axis will end by losing control of North Africa”.
    [Show full text]
  • German WW2 ECM (Electronic Countermeasures)
    - • - • - - • - - • • • • • • - • - - • • • - • • • • • - • German WW2 ECM (Electronic Countermeasures) Adam Farson VA7OJ 17 October 2013 NSARC – German WW2 ECM 1 Glossary of terms - • - • - - • - - • • • • • • - • - - • • • - • • • • • - • Common acronyms: SIGINT: SIGnals INTelligence COMINT: COMmunications INTelligence (communications between people or entities) ELINT: ELectronics INTelligence (electronic signals not directly used in communications e.g. radar, radio-navigation) ECM: Electronic CounterMeasures ECCM: Electronic Counter-CounterMeasures EW: Electronic Warfare (encompasses all the above) System designators: AI: Airborne Interception radar ASV: Air to Surface Vessel radar CD: Coastal Defence radar CH: Chain Home radar (CHL = Chain Home Low) D/F: Direction Finding Huff-Duff: High Frequency D/F H2S: British 3 GHz radar with PPI (plan-position indicator) display (possible abbreviation for “Home Sweet Home”) H2X: US 10 GHz variant of H2S 17 October 2013 NSARC – German WW2 ECM 2 Scope of presentation - • - • - - • - - • • • • • • - • - - • • • - • • • • • - • Detection, interception & analysis Communications vs. radar monitoring Direction-finding Examples of COMINT, ELINT, SIGINT sites Radar detection VHF/UHF & microwave radar detectors & threat receivers Land, shipboard & airborne systems Notes on German microwave technology Jamming & spoofing: Radio communications: HF, VHF Navaids: GEE, OBOE Radar: VHF/UHF, 3 GHz, 10 GHz Equipment examples A case history: Operation Channel Dash (Cerberus) 17 October
    [Show full text]
  • Part 4: Conclusions and Recommendations & Appendices
    Twentieth Century Naval Dockyards Devonport and Portsmouth: Characterisation Report PART FOUR CONCLUSIONS AND RECOMMENDATIONS The final focus of this report is to develop the local, national and international contexts of the two dockyards to highlight specific areas of future research. Future discussion of Devonport and Portsmouth as distinct designed landscapes would coherently organise the many strands identified in this report. The Museum of London Archaeology Portsmouth Harbour Hinterland Project carried out for Heritage England (2015) is a promising step in this direction. It is emphasised that this study is just a start. By delivering the aim and objectives, it has indicated areas of further fruitful research. Project aim: to characterise the development of the active naval dockyards at Devonport and Portsmouth, and the facilities within the dockyard boundaries at their maximum extent during the twentieth century, through library, archival and field surveys, presented and analysed in a published report, with a database of documentary and building reports. This has been delivered through Parts 1-4 and Appendices 2-4. Project objectives 1 To provide an overview of the twentieth century development of English naval dockyards, related to historical precedent, national foreign policy and naval strategy. 2 To address the main chronological development phases to accommodate new types of vessels and technologies of the naval dockyards at Devonport and Portsmouth. 3 To identify the major twentieth century naval technological revolutions which affected British naval dockyards. 4 To relate the main chronological phases to topographic development of the yards and changing technological and strategic needs, and identify other significant factors. 5 To distinguish which buildings are typical of the twentieth century naval dockyards and/or of unique interest.
    [Show full text]
  • Naval Dockyards Society
    20TH CENTURY NAVAL DOCKYARDS: DEVONPORT AND PORTSMOUTH CHARACTERISATION REPORT Naval Dockyards Society Devonport Dockyard Portsmouth Dockyard Title page picture acknowledgements Top left: Devonport HM Dockyard 1951 (TNA, WORK 69/19), courtesy The National Archives. Top right: J270/09/64. Photograph of Outmuster at Portsmouth Unicorn Gate (23 Oct 1964). Reproduced by permission of Historic England. Bottom left: Devonport NAAFI (TNA, CM 20/80 September 1979), courtesy The National Archives. Bottom right: Portsmouth Round Tower (1843–48, 1868, 3/262) from the north, with the adjoining rich red brick Offices (1979, 3/261). A. Coats 2013. Reproduced with the permission of the MoD. Commissioned by The Historic Buildings and Monuments Commission for England of 1 Waterhouse Square, 138-142 Holborn, London, EC1N 2ST, ‘English Heritage’, known after 1 April 2015 as Historic England. Part of the NATIONAL HERITAGE PROTECTION COMMISSIONS PROGRAMME PROJECT NAME: 20th Century Naval Dockyards Devonport and Portsmouth (4A3.203) Project Number 6265 dated 7 December 2012 Fund Name: ARCH Contractor: 9865 Naval Dockyards Society, 44 Lindley Avenue, Southsea, PO4 9NU Jonathan Coad Project adviser Dr Ann Coats Editor, project manager and Portsmouth researcher Dr David Davies Editor and reviewer, project executive and Portsmouth researcher Dr David Evans Devonport researcher David Jenkins Project finance officer Professor Ray Riley Portsmouth researcher Sponsored by the National Museum of the Royal Navy Published by The Naval Dockyards Society 44 Lindley Avenue, Portsmouth, Hampshire, PO4 9NU, England navaldockyards.org First published 2015 Copyright © The Naval Dockyards Society 2015 The Contractor grants to English Heritage a non-exclusive, transferable, sub-licensable, perpetual, irrevocable and royalty-free licence to use, copy, reproduce, adapt, modify, enhance, create derivative works and/or commercially exploit the Materials for any purpose required by Historic England.
    [Show full text]
  • The Origination and Evolution of Radio Traffic Analysis: the World War I Era
    UNCLASSI Fl ED The Origination and Evolution of Radio Traffic Analysis: The World War I Era (b )(3)-P. L. 86-36 Not unlike the telegraph and ita influence on the American Civil War, the invention of radio had a profound affect on World War I military operations and in all conflicts since 1901. Signals intelligence, a new form. of intelligence produced from. the intercept of radio traffic, developed on a parallel course with radio during the early years of the twentieth century. Although signals intelligence was identified as a method to produce useful and critical information during war, it did not mature as a significant tool until after the ,.War to End All Wars." Radio traffic analysis, a branch of signals intelligence, was not even recognized as a separate technique until long after the First World War ended. Nevertheless, traffic analysis, or TIA, existed as a function in that era and made significant contributions to military operations and to the development ofsignals intelligence. For the American signals intelligence service, radio traffic analysis originated as a technique in the codebreaking section and with the clerks in the goniometric or Direction Finding (DF) service of the American Expeditionary Force. The early cryptanalysts developed TIA techniques to identify the originator and receiver of radio messages and to determine the more important encoded or enciphered messages to attack. TIA also evolved in the DF service with the clerks who discovered ways to produce intelligence from analysis of the externals of messages and from the location ofthe radio transmitters. The increasingly more complex communications systems which defied cryptanalytic attack provided the impetus for these developments.
    [Show full text]
  • The First Americans the 1941 US Codebreaking Mission to Bletchley Park
    United States Cryptologic History The First Americans The 1941 US Codebreaking Mission to Bletchley Park Special series | Volume 12 | 2016 Center for Cryptologic History David J. Sherman is Associate Director for Policy and Records at the National Security Agency. A graduate of Duke University, he holds a doctorate in Slavic Studies from Cornell University, where he taught for three years. He also is a graduate of the CAPSTONE General/Flag Officer Course at the National Defense University, the Intelligence Community Senior Leadership Program, and the Alexander S. Pushkin Institute of the Russian Language in Moscow. He has served as Associate Dean for Academic Programs at the National War College and while there taught courses on strategy, inter- national relations, and intelligence. Among his other government assignments include ones as NSA’s representative to the Office of the Secretary of Defense, as Director for Intelligence Programs at the National Security Council, and on the staff of the National Economic Council. This publication presents a historical perspective for informational and educational purposes, is the result of independent research, and does not necessarily reflect a position of NSA/CSS or any other US government entity. This publication is distributed free by the National Security Agency. If you would like additional copies, please email [email protected] or write to: Center for Cryptologic History National Security Agency 9800 Savage Road, Suite 6886 Fort George G. Meade, MD 20755 Cover: (Top) Navy Department building, with Washington Monument in center distance, 1918 or 1919; (bottom) Bletchley Park mansion, headquarters of UK codebreaking, 1939 UNITED STATES CRYPTOLOGIC HISTORY The First Americans The 1941 US Codebreaking Mission to Bletchley Park David Sherman National Security Agency Center for Cryptologic History 2016 Second Printing Contents Foreword ................................................................................
    [Show full text]
  • Shoreham's Radar Station-Bookv2
    The Story of RAF Truleigh Hill by Roy Taylor Copyright Aug. 2020 Page 1 of 107 Contents Introduction……………………………………………. 1 1. Radar Development………………………………... 3 2. Wartime…………………………………………….. 4 3. Poling………………………………………………. 20 4. GEE Navigational Aid……………………..............26 5. ROTOR Period – Technical Site………………….33 6. Stoney Lane Domestic Site……………………….. 43 7. Sport………………………………………………. .52 8. Commanding Officers…………………….…….. 57 9. Finding the Veterans…………………………….. .61 10. Local Involvement………………………………. 74 11. Later Developments……………………………... 77 Appendix 1 - Roll Call………………………… …… 81 Gallery…………………………............ 86 Appendix 2 – Other Sussex RAF Radar Stations….. 93 Appendix 3 – Further Reading……………………… 94 Appendix 4 – Technical Notes (CHEL) 95 Acknowledgements………………………………… 98 The Story of RAF Truleigh Hill by Roy Taylor Copyright Aug. 2020 Page 2 of 107 Shoreham’s Radar Station The Story of RAF Truleigh Hill Introduction The Story of RAF Truleigh Hill by Roy Taylor Copyright Aug. 2020 Page 3 of 107 It is over fifty years since I first set foot in Shoreham, as a 19-year-old radar operator at RAF Truleigh Hill. I served the final 15months of my compulsory period of National Service at this, the last of my six postings. On demob, I stayed in the area and have been here ever since. I have kept in contact with four of my former colleagues. Photos and memories come out for an airing every so often, but it is only in the last few years, however, that I have started to think seriously about the history of RAF Truleigh Hill. The radar operation started in 1940, just before The Battle of Britain, and continued in several different formats until closure in 1958.
    [Show full text]