Papers of Sergeant J. L. R. Royall, Royal Artillery Search Light Training Instructor (Anti Aircraft), 1939-1942

Author: 
[Sergeant J.L.R. Royall; Anti-Aircraft; Search Light]
Publication details: 
1939-1942
£800.00
SKU: 18958

These papers provide a unique insight into the top-secret workings of a vital branch of defensive warfare at its apogee - the Battle of Britain - during a period while it was integrating into its systems the new radar technology which would ultimately render it redundant, and at a time which saw it was at the forefront of the beginning of the integration of women into the armed services. The papers mainly consist of the operational papers (information, practice and lecture notes), used by Royall as an instructor, with the large number of drafts indicating the quickly-changing nature of the technology. Also present are a number of Royall's own manuscript essays, and a number of documents relating specifically to him and his units.Comprising 245 items (228 mimeographed and 17 manuscript), totalling 438pp., 8vo; and 60pp., 12mo. The earliest dated 1 May 1939 and the latest 8 December 1942. In good condition, on aged paper. Printed documents with reference to: the Searchlight Wing School of A. A. Defence, Shrivenham, Swindon; Grove Park, Lewisham; Wingate Barracks, Oswestry; Bristol; Norton Manor Barracks, Taunton; and Copythorne, Romsey and Nursling, Hampshire. Two Royal Artillery Searchlight Training Regiments are mentioned: 222 (Taunton, Somerset) and 236 (Shrewsbury, Shropshire). For background information in the hitherto-neglected field of Anti-Aircraft Searchlights, see Keith Brigstock's excellent paper 'Royal Artillery Searchlights', read before the Royal Artillery Historical Society on 17 January 2007. The following two paragraphs attempt to precis the relevant material from Brigstock's paper. The first Gunner Searchlight regiments, formed in 1938, were equipped with new 90cm Projector Anti Aircraft, as searchlights were officially called. These were supported by lorry-mounted generators: the Tilling Stevens and the Thornycroft, supplemented by two-wheeled Lister trailers. At the time searchlights relied heavily on acoustic technology: sound locators fitted with large parabolic receivers and sensitive microphone detectors which, due to their size, were mounted on large four wheel trailers. A new development was cathode-ray tube enabling: a green screen from which the operators could see sound converted to a visual display. Another new piece of equipment was the 150cm searchlight, which, mounted on its own four-wheeled trailer, had a powerful, narrow beam capable of penetrating mist and low cloud to illuminate targets at 20,000 feet. During the Battle of Britain these 150cm Searchlights were issued in quantity but did not have the effect hoped for. In November 1940 the searchlights in the 11 Group area were reorganised and ordered to form clusters in sites with one 150cm and two 90cm searchlights. Towards the end of 1941 the Air Defence Research and Development Establishment in Christchurch produced a new radar-controlled searchlight, SLC or 'Elsie', making the sound locator redundant. At the end of 1941 there were 71 Royal Artillery Searchlight Regiments. A regiment had a strength of 52 Officers and 1622 ORs. It was commanded by a lieutenant-colonel, and consisted of four batteries, each commanded by a major, with a strength of 11 officers and 365 ORs. A battery consisted of four troops each with six searchlights and was usually commanded by a captain. Both the 90 and 150 cm searchlights had ten-man detachments on static sites. This gave a regiment a total equipment strength of 96 searchlights. Following a secret trial called the Newark Experiment carried out in April 1941, women were sent for training at Rhyl. In July 1942 the first seven searchlight troops were formed with ATS members. The top secret nature of Royall's work makes the survival of these papers all the more fortuitous. An undated set of 'Notes for G. L. Operators' emphasizes the point: 'SECRECY: The following notes on G. L. are SECRET. | It is known that the enemy has been experimenting on the development of equipment similar to G. L. but has failed to produce a satisfactory instrument. [...] Many lives have been sacrificed in this war to prevent our equipment from falling into enemy hands [...] Don't let it be YOU who unwittingly gives the enemy any information which has so far been withheld from him. NEVER discuss or even mention G. L. outside Camp or your Gun Station, and even in Camp do not include non-O's. F.C. in discussions [...] Your notes, when not under your personal observation must be kept LOCKED UP. Loss of secret notes through negligence is a very serious crime.' The series nature of the work is emphasized throughout. A number of documents are headed 'NOT TO BE PUBLISHED. The information given in this document is not to be communicated either directly or indirectly to the press, or to any person not holding an official position in His Majesty's Service.' In the earliest item in the list, a circular dated 1 May 1939 to 'All No. 6's' at Grove Park (Lewisham), Lieut. A. E. F. James writes: 'As a No. 6 your efficiency is of the utmost importance both to your own detachment, and to the 329th A.A. Coy. as a whole. Unless you know your job thoroughly, the work of the listener will be practically useless. [...]'. A hint at the new role of women is to be found in the document titled 'Manning Drill Mk. III.' (section 7 below), on the first page of which, in 'Instructor' column, we find: 'No. 1 will prepare her station for action & "Fall her Detachment in"'.The following description is divided into eight sections:1. Miscellaneous dated documents, May 1939 to November 1942.2. Miscellaneous undated documents.3. Searchlight Wing, November 1940 to July 1941.4. Precis, c. December 1940.5. P.P.S documents, c. May 1942. a. Lessons. b. Plotting.6. S.L.C. Lecture Demonstration.7. Tabulated Lists.8. Manuscripts.Abbreviations:ADGB - Air Defence of Great BritainGL - Gun Laying (which enabled the guns to engage unseen targets)PPS - Practice PapersSLC - Search Light Control (radar-guided searchlight)1. Miscellaneous dated documents, May 1939 to December 1942.45 items, totalling 77pp., 8vo; 12pp., 12mo. With several diagrams, some in colours.'Subject: - Training Programme - May 1939 - No. 6's. | To: All No. 6's.' Circular, signed in pencil by A. E. F. James, '2/Lieut. R.E. (T.) for. O. i/c Training.' Grove Park; 1 May 1939. 'The 90 cm. H.C.D. Lamp.' 6pp., 8vo, with seventh page of diagrams in coloured pencil. [c. May 1939 (with last item)]'Theory of the Ring Sight'. 2pp., 8vo. [c. May 1939, with last two items)]'Duties of No. 6'. 1p., 8vo. [c. May 1939 (with last three items)]'Notes on Generating Set - 22K.W. - "Lister".' [August 1940]'Notes on Lorries, 3-Ton, 4-Wheeled, Searchlight, T.S.M. Petrol Electric.' [August 1940]'L.C. Engines and S/L Lorries.' With 'Bdr K B D Martin' in pencil at head of first page, and purple oval stamp of 'HEADQUARTERS | SCHOOL OF A.A. DEFENCE | Date. [14 August 1940]'.'Notes on Lorries 3-Ton. 4-Ton. Wheeled Searchlight "Guy".' [c. August 1940 (stapled with last three items)]'First Aid - Blister Group. With 'Bdr Royall' in pencil at head of first page, and purple oval stamp of '"B" BATTERY | 236 S/L TRAINING RGT. R.A. | 14 Nov 1940'.'Wireless Set. No. 17. | Description, Sitting and Operation' [S/L Wing, S.A.A.D., 7 December 1940]'Switchboard Five-line' [March 1941]'"B" Searchlight Training Battery, R.A. Instructions for Tattoo Roll Call' by 'Wingate Barracks, Oswestry. | BSM/-'. 'E. J. Farmer Major R.A., Commanding B Searchlight Training Battery, R.A.' ['These Orders will come into operation from Roll Call, Monday 10th March, 1941.''Arc Lamp. (Mark I).' [April 1941]'Duties of Officers' [May 1941]'Mechanical Wheeled Vehicle Inspection Report'. Printed form, fillled in by L/Sgt. D. J. Galley ('Driver's Name A. A. Hall'). Royall's name at head. Dated 13 May 1941.'Lamps H.C.D. 150 cm Mk. I.' [July 1941]'Automatic Remote Control. Control Gear, Mark IV.' [7 July 1941]'Telephones' [August 1941]'Focusing of Lamps, A.A.S.L., H.C.D., (As laid down in A.C.I. 1638, 1941)' [3 September 1941]'8 A.A. Division. | Ref. 8AA/S/152/2/G | Searchlight Training Note No. 4. | Secret | Plotting' [Bristol, 30 June 1941]'S/L Tactics and Layouts - A.D.G.B. Winter 1941-42' [Shrivenham, 16 September 1941, 'LR']'Notes on Simple Explanation of A.R.C. Gear' [21 October 1941]'222nd S/L Training Regiment. R.A. | Locator (S.L.C.) Mark I* | Notes on lining up drill.' [Norton Manor Barracks, Taunton, 17 November 1941]'Appendix II(b) | Class Practices for Listeners on the Savage Sound Locator Trainer' [25 November 1941, 'FM']'222nd S/L Training Regiment. R.A. | Engagement of selected targets and controlled exposure of searchlights'. [Taunton, 1 December 1941]'Provisional Drill at Orbit Beacon Sites' [Taunton, 14 January 1942, 'EDM.']'Duties of 6, 7 and 8 (S. L. C.)' [Taunton, 16 February 1942, 'EDM.']'Training Appliances - Description and use of. Ringsight Teacher.' [Taunton, 16 February 1942]'Officers Examination. | Only four categories to be answered. Time allowed 1 hour.' [Taunton, 17 April 1942.]'Secret | Appxd. "A" to 47 A A Bde. S/7/2/G | dated 21. Apr. '42.' Form, partially completed in pencil.'8 A.A. Division Training Instruction No.27 (Searchlights) | S/152/2/G. | Avoidance of Lagging Beams in Killer Belt. | Secret' ['Bristol. | 4 Aug. 42. | (sgd) ? ? ? ? ? ? [sic] | Lt. Col. | General Staff. 8. A.A. Div.']'Subject: - Troop Concentration at Copythorne on Friday Oct 30th | To: - All Detachment Commanders and Lieut. Dale. for information' ['"C" Troop. | Romsey. | 28.10.42. | (Sgd) E. H. Hart. Lieut. R.A. | Officer ic "C" Troop.']'Subject: - Concentration at Romsey. | To: - All Detachment Commanders.' Signed by Lieut. E. A. Hart, 'Officer i/c Training "D" Troop.' From '"C" Troop. H.Q. | Romsey. | 3.11.42. | EHH/RHL.''Subject: - Concentration at T. H. Q. | To: - All Detachment Commanders and Lt Dale, for information' ['"C" Troop. H.Q, | Romsey. | 10.11.42. | [signed] E. H. Hart. | Lieut. R.A. | Officer i/c "C" Troop.']Three Training Programmes, all 'To: - Detachment Nursling | From: "C" Troop. H.Q.' For weeks ending 1, 8 and 15 November [1942]. The first signed in type by 'E. H. Hart. Lieut. R.A. | Officer i/c "C" Troop', and the last with Hart's actual signature.'Subject: - S.L.C. Training. | To: - All D.C.s.' Signed by Lieut. W. J. Chard, for 'O. i/c Training "D" Troop.' Romsey, 28 November 1942.'392 S/L Batter. S.L.C. School. | Programme'. Signed by R. N. Mahoney, 'Lieut. R.A. | O. i/c Training D Troop'. Romsey, 28 November 1942. With another version, also signed, and a covering typed circular of the same date, signed by Mahoney and headed 'Subject: S.L.C. Training. | To: All D.C.s.' The letter begins: 'the attached S.L.C. Programme is forwarded for information of all ranks. | The School will be held at HURSLEY 0114. | N.C.O. Instructor i/c School is Sgt. Royall.''Subject: - S.L.C. Training. | To: - D.O.'s. O113, O115, O116.' Signed by Lieut. W. J. Chard, 'O. i/c "D" Troop.' Romsey, 29 November 1942.'Subject: - Changing of Personnel. | To: - D.O.'s Plaitford, Braishfield, & Hursley.' Signed by R. N. Mahoney, 'Lieut. R.A. | O. i/c Training "D" Troop.' Romsey, 3 December 1942.'Subject: - Movement of Personnel. | To: - O113, O114, O115, O116. | Tuesday. 8 Dec. 1942.' Initialed by Mahoney.'Subject: S.L.C. Training. | To: All D.O.s and Sgt. Roull [sic].' Signed by R. N. Mahoney, 'Lieut. R.A. | D Troop.' Romsey, 8 December 1942.2. Miscellaneous undated documents.43 items, totalling 57pp., 8vo; 6pp., 12mo.'NOTES FOR G. L. OPERATORS'. 26pp. Undated. First page headed in pencil 'Sgt. J. L. R. Royall. "B" Battery.' With diagrams, both printed and in coloured pencil.'American Aircraft for Britain.''British Military Aircraft. | (Standard Types in Service.)''Recognition of Aircraft. | Standard Lecturette' [numbered in manuscript 13]'Recognition of Aircraft.' [different from last] [numbered 15]'Binoculars' and 'Spotting Chairs''Clock Face Notation for teaching the Selection of Leading Point''Connections for Broadcasting to all eight sites.''Elementary Electricity and Magnetism ''Engagements of Selected Targets and Controlled Exposure of Searchlights''Guards and Sentryes [sic]''Maintenance and Inspection of Vehicles''Parachute Action''Theory of Flight''Notes on Lorries. 3-Ton, 4 Wheeled, Searchlight. "Thorneycroft" [sic].''A.R.C. General Lecture. | Increase in accuracy over Mk. III** Equipment''A.R.C. Locator'. Mimeographed handwritten diagram. 1p., 8vo.'Mark III Control Gear. | General Lecture''Mark III Control Gear. | Leading Unit Side''Control Gear Mark IV - Drill for Lining Up''Arc Lamp Mk. V.''Lamp, Searchlight, H.C.D. 90 cm. Mk. I & Mk. I*''Lamp, Searchlight, H.C.D. 90 cm. Mk. V.''Projector A.A. 90 cm. Mk. V. | Daily maintenance. (Each task 30 minutes)'.'Projector A.A. 90 cm. Mk. V. | Weekly maintenance. (Each task 90 minutes)'.'Projector A.A. 90 cm. Mks. VI, VI*, and VI** | Daily Maintenance. (30 minutes)'.'Projector A.A. 150 cm. Mk. I and Mk. I* and Lamp Searchlight 150 cm. Mk. I | Daily Maintenance'.'Maintenance Tasks - A.A. No. 2. Mk. III. [V., VI.]'.'Weekly Maintenance Task No. 4 Guy (1938). Fuel Supply System.'Four 8vo practice pages, pasted onto 3 pieces of board:'Practical Period. Inspect Mark V. Lamp.''Practical Period - Operation of Control Arm.'[recto] 'Projector A.A. 90 cm. Mk. V. | Daily maintenance.' [verso] 'Projector A.A. 90 cm Mk. V. | Weekly maintenance.''Extract from S.A.A.A. Bulletin No. 2. | Secret. | Item 26. - B.S.T. - Modifications to Drill and Procedure.''Extract from the Manual of Elementary Drill. 1935.''Duties on Preparation for Action - Mk. III Manning Drill'.'Appendix to 8 A.A. Division Searchlight Training Note No. 4. | Class Practices for Individual Plotters. | C.P. P/1''Appendix "A" | Hygiene | Suggested Items for inspection by Inspecting Officers or W.O. 3's'.'Appendix "B" | Technical Inspection''Questions.' List of 10 questions. 1p., 8vo.'Regimental Orderly Sergeant Report', Norton Manor Barracks. Mimeographed form. Not completed.'Searchlight Station Reconnaissance Report.' Printed form. Not completed.3. Searchlight Wing, November 1940 to July 1941.Group of 35 documents, dated from 11 November 1940 to 1 July 1941. Totalling 89pp., 8vo, including 9pp. of diagrams, several in colours. Including 4 undated documents and 4 examination papers. Uniformly printed in purple, with 26 of the 31 carrying Royall's name in manuscript and the purple rectangular stamp of 'Searchlight Wing | School of A. A. Defence | Shrivenham, Swindon.'. Documents headed (in chronological order):27 dated:'Syllabus of Practical Detachment Training.' [11 November 1940]'Training in Detachment Hut' [22 November 1940]'Detachment Training.' [9 December 1940]'Searchlight Training at Night' [December 1940]'Means of Air Defence.' [December 1940]'Searchlight Layouts and Tactics.' [5 December 1940]'The "Sperry" Sound Locator and Sight.' [26 December 1940]'Section Vehicle Inspection' [27 December 1940]'Notes on Lecturing.' [7 January 1941]'Lecturettes - Operational Subjects.' [7 January 1941]'Duties of N.C.Os. in a Searchlight Unit.' [8 January 1941]'Reconnaissance and Occupation of a S/L Area.' [8 January 1941]'Plotting (2)' [13 January 1941]'The "Sperry" Remote Control System.' [14 January 1941]'Lamps, Searchlight H.C.D., 60-in. ("Sperry" & "G. E.")' [26 February 1941]'Plotting I | Theory and Principles' [17 March 1941]'Scheme "3" | Administration' [17 March 1941] [two copies]'Recognition of Aircraft.' [April 1941]'Searchlight Layouts and Tactics.' ['3'] [9 April 1941]'Elements of Electricity.' [21 April 1941]'Engagement of Selected Targets and Controlled Exposure of Searchlights.' [8 May 1941]'Duties of No. 6 - A.R.C.' [10 May 1941]'Recognition of Aircraft.' [June 1941] [numbered in manuscript '17']'Duties of 6. (S.L.C.)' [2 June 1941]'The Cluster Policy in A.D.G.B.' [5 June 1941]'Suggested Type of Two Hour Manning Programme.' [7 June 1941]'Duties of No. 9. in action.' [1 July 1941, 'MA.']4 undated:'Control Gear Mk. III. | Maintenance by Searchlight Operator.' [undated]'The Maintenance Task System''Searchlight Wing, School of A.A. Defence. | Technical Lecturettes.' [undated]'"Serry" [sic] Searchlight Equipment - General.' [undated]Four examination papers:'Searchlight Wing, School of A.A. Defence. | Course Serial No. 75 - No. 31. Unit Assistant Instructors. | Operational Examination. | Time. 1400-1630. hours. 16.5.41.''Searchlight Wing, School of A.A. Defence. | Course Serial No. 75 - No. 31. Unit Assistant Instructors. | Written Examination - Lamps & Generators. | 0900-1045 Hrs. 26.5.41.''Searchlight Wing, School of A.A. Defence. | Course Serial No. 75 - No. 31. Unit A/Instructors. | Written Examination - A.R.C. V.I.E. | Friday 6.6.41. | Part I. (V.I.E.) | Time 1400-1630. hrs.''Searchlight Wing, School of A.A. Defence | Course Serial No 75 - Unit A/Instructors. | Written Examination - Sperry; R/T; S.L.C. | Time. 1400-1535. hrs. | Friday 13.6.41'.4. Precis, c. December 1940.37 'Precis', most dated to December 1940, grouped into 26 documents. Totalling 58pp, 8vo. Irregularly numbered (as described below) between 1 and 39. 27 of the precis are signed in type by the 'Chief Instructor', and dated either 1 December 1940 (the earliest No. 3) or 15 December 1940 (the latest No. 38). The rest unattributed and undated. All but the last three stapled into one bundle, inscribed 'L/Sgt Royall.'Headings:No. 1, 'Means of Air Defence'[No. 2,] 'Aircraft Searchlights - Introductory Lecture'No. 3, 'Organisation & Equipment of S/L Units'No. 4, 'Searchlight Equipment'No. 5, 'Elementary Electricity'No. 6, 'Definition of Terms'No. 7, 'The presence of the soft ironcore strengthens the Field'No. 8, 'Application of Electricity to Searchlight'No. 7 [sic], 'Elementary Electricity'No. 9, 'Elementary Optical Principles'No. 8 [sic], 'Insulators'No. 10, 'Reflectors'No. 11, 'Mounting and Unmounting of Reflectors in Projectors A.A. 90c.m. Mks. II. III. V. & VI.'No. 12, 'Principles of 90c.m. Projector'No. 13, 'Arc Lamp'No. 14, 'Lamp H.C.D. 90 cm. Mk. 1 & Mk. 1+'No. 14A, 'Lamps H.C.D. Mk. 1. & Mk. 1+'No. 15 and 16, 'Projector A.A. 90 cm. Mk. VI'No. 17, 'Lamp Searchlight H.C.D. Mark V'No. 18, 'Focus of Lamps'No. 19, 'Focussing of S/L Lamps'[No. 20?,] 'Care and Maintenance of Telephone Gear (110 & F) and Circuits in Detachment'No. 21, 'R/T Wireless Set No. 17. - Operating Procedure'No. 22, 'R/T Wireless Set No. 17 - Operating Procedure (contd.)No. 23, 'A.R.C. | Introduction and Demonstration'No. 22, 'R/T Wireless No. 17 - Operating Procedure. (contd.)No. 26, 'The Use and Care of Binoculars'No. 27, 'The Duties and Training of Spotters'No. 28, 'Daylight Training of Spotters'No. 29, 'Sound'No. 30, 'Sound Locator'No. 31, 'Notes on Erection of Mark III** Locator'No. 32, 'Sound Locator Sight'No. 33, 'Locator Sound, Mk. III'No. 35, 'Fitting of Stethoscopes No. 5 to Locator Sound Mark VIII and IX.'No. 38, 'Care and Maintenance Mk. IX Locator on Dyson Trailer'No. 39, 'The Cluster Policy in A.D.G.B.'5. P.P.S. documents, c. May 1942.a. Lessons.40 items, totalling 60pp., 8vo; 9pp., 12mo. All except Nos. 9/27 and 9/32 draft copies:No. 4/3. 'Holding and Operation of the Control Arm.'No. 4/5. 'Beam Speeds (A.T.S.)'No. 4/11. 'Beam Speeds (A.T.S. Timed) 90 cm. by day or night.'No. 5/7. 'Recognition of Parts. Lamps N.C.D. Mk. V and Mk. I.' [incomplete]No 5/44. 'Dismantling and Reassembling 90 cm Projector Mark V and VI'.No. 5/45. 'Test of Mk. III Control Gear'.No. 5/48. 'Introduction to Test Panel A.R.C.'No. 6/9. 'Manning Pracitese [sic] 12. | Directions Accuracy.'No. 6/10. 'Manning Practice 7. Directing, Accuracy, Fixed Target.'No. 6/11. 'Manning Practice 8. Directing Speed, Fixed Targets.'No. 9/2. 'Weekly Maintenance Task No. 15. Brakes on T.S. 20 Lorry.'No. 9/4. 'Stationary running under Load and closing down on a Four Wheeled Guy S/L Lorry.'No. 9/6. 'Weekly Maintenance Task No. 9. - T.S.M. Charging System.'No. 9/8. [Four pages of mimeographed drawings.] 'TSM (19) Lorry', 'T.S.M. 20. S/L Lorry', 'Thornycroft S/L' and 'Guy'.No. 9/9. 'Weekly Maintenance Task No. 13. T.S.M. 20 - Chassis Lubrication'No. 9/11. 'Weekly Maintenance Task. No. 3. Thornycroft 1941. Engine Cooling System.'No. 9/12. 'Weekly maintenance Task No. 5 - Thornycroft 1941. Carburettor and Controls.'No. 9/13. 'Stationery Running with a 22 K.W. Lister Generator under Load and closing down.'No. 9/14. 'Weekly Maintenance Class Task No. 8 Steering.'No. 9/15. 'Weekly maintenance task No. 10 Thornycroft (1941) Starter, Light, and Accessories.'No. 9/16. 'Weekly maintenance Task No. 17 T.S.M. (20 main Generator and Controls)'No. 9/19. 'Weekly Maintenance Task No 15 on 4 wheel Guy Brakes.'No. 9/24. 'Weekley Maintenance Task 2 Thornycroft (1941) Engine. Lubrication.'No. 9/25. 'Weekly Maintenance Task No. 7. Thornycroft (1941) Coil Ignition.'No. 9/27. 'Weekly maintenance task No. 6., Sparking Plugs and H.T. Leads. Thornycroft 1941.'No. 9/29. 'Weekly Maintenance Task No. 16 on 1941 Thornycroft Tyres.'No. 9/30 (draft). 'Weekly Maintenance Task 11 T.S.M.P.E. Electrical Transmission.' [2 May 1942]No. 9/31. 'Weekly Maintenance Task No 11 Clutch and Gear Box.'No. 9/32. 'Weekly maintenance Task 12. - T.S.M., P.E. | Cotal drive and Rear Axle.'No. 9/33. 'Lecturing for Task I.'No. 9/34. 'Weekly Maintenance Task No. 7. T.S.M. (1936) Mag. Ignition.'No. 9/35. 'setting up Thornycroft for Stationary Running.'No. 9/36. 'Stationary Running under Load and Closing Down. No. 5 having doused, on a T.S.N. 20 Lorry.'No. 9/38. 'Weekly maintenance Task No. 4. T.S.M. Fuel Supply System.'No. 9/39. 'Weekly Maintenance Task No. 4 Thornycroft 1941 Fuel Supply System.'No. 9/42. 'Setting up 22kw. Lister Generator for Stationary Running.'No. 9/43. 'Stationary Running under Load and Closing Down on a T.S.M. 19 (P.E.) S/L Lorry.'No. 9/44. 'Weekly Maintenance No. 12 Task - Transmission Shafts & Joints.'No. 9/45. 'Task. No. 3. On the Lister. (Weekly Maintenance.)'[Illegible number] 'Weekly Maintenance Task No. 14. T.S.M. (PE) Frame and Fittings'b. Plotting.22 items, totalling 22pp., 8vo; 7pp., 12mo.No. Plotting/1. 'B.O.R. Procedure Take Post & Downward Plot.'No. Plot/2. 'Instrument Drill.' [4 May 1942]No. Plot/3 (draft). ' "Dummy Run" for Case "B" Procedure.'No. Plot/4. 'B.O.R. Procedure Upward Plot.'No. Plot/5. 'Site Procedure - 14 and 15. | Take Post, Downward Plot, Upward Plot.' [6 May 1942]No. Plot/6. 'Rectification.'No. Plot/7 (draft). 'B.O.R. Procedure. Prepare for Action.'No. Plot/8. 'Equipment.'No. Plot/9. 'Daily Maintenance Type Telephone F. and L.'No. Plot/10 (draft). 'Telephone "L" Tests.'No. Plot/11 (draft). 'Tests for Faults Telephones Set F. Type.'No. Plot/12. 'Prediction at S/L Site'.No. Plot/13 (draft). ''Combined Instrument Drill.' [5 May 1942]No. Plot/17 (draft). '10 Line Switchboard.'No. Plot/25 (draft). 'Telling and Plotting Map References.'No. Plot/26 (draft). 'Switchboard 5 Line (Lecture Demonstration).'No. Plot/27 (draft). '5 Line Switchboard.'No. Plot/29. 'Plotting Map References.'No. Plot/30 (draft). 'Working Instructions Telephone Set "F" Type.'No. Plot/31 (draft). 'Telephone Set "F" Type - Operating of.'No. Plot/32 (draft). 'Telephone Set L. Type - Operating of.'[No.?] 'Wind Vector and Speed Protractor.'6. S.L.C. Lecture Demonstration.11 items, totalling 16pp., 8vo; 2pp., 12mo. None dated.No. 1. 'Identification of Components and their Functions S.L.C. Mk. 1+ Locator.'No. 2 (draft). 'Identification of components and their functions S.L.C. Mk. II Locator.'No. 3 (draft). 'Introduction to S.L.C. Practical.'No. 4a. 'Lesson: Erecting Locator S.L.C. Mk. I*'No. 4b. 'Lesson: Dismantling A.A. No 2 Mk III'.No. 5a (draft). 'Daily Care and Maintenance. S.L.C. M.K. 1+ | S.L.C. L.D. 5a. | S.L.C. MBT.' [Two drafts, one with 'Care and Maintainence' in heading]No. 5b. 'S.L.C. Mk. 1x (Maintenance) - Weekly Tasks.' [Two drafts, one with 'Weekly Takes' in heading]No 6a (draft). 'Daily Care and Miantenance . [sic] | (S.L.C. Mk. II (Wigwam Model)'. [Two copies]No 6b (draft). 'Lesson. S.L.C. Mk. II. (Wigwam Model)'.No. '69'. [sic, for '6C'?] 'Daily Care and Maintenance. | S.L.C. Mk. II (Wigwam Model.)' [numbered in manuscript '20']No. 7. 'Identification of Power Leads and Connections.' [numbered in manuscript '22']7. Tabulated lists.Six items, totalling 30pp., 8vo; 1p., 12mo.'Minimum Standard for S.L.C. Equipment.' 5pp., landscape 8vo. With covering TLS ('Most Secret') from Lieut. Dale, Training Officer, 392/48th S/L Regt., R.A. Lyndhurst; 23 November 1942.'Drill for Lining Up S.L.C. Mk. I* and Mk. II with Mk. IV Control Gear. Action by Detachment.' 3pp., landscape 8vo.'Manning Drill S.L.C. with E.S.T.' 11pp., landscape 8vo. With a few manuscript additions.'Appendix "A" | Types of War Games and their First Aid Treatment.' 2pp., landscape 8vo.'Manning Drill Mk. III.' 8pp., landscape 8vo. Headed in pencil 'Sgt. J. L. R. Royall'.'11th Week. | 236th Searchlight Training Regt. R.A. | "B" Searchlight Battery R.A. | Date 31st Mar. to 5th April 1941'. 1p., landscape 8vo.8. Manuscripts.17 items, totalling 29pp., 8vo; 15pp., 12mo, including five diagrams in colours.'Appreciation of a Situation''Clusters''Listeners Course for Locations. Sound. Mk. IX, With or Without V.I.E.''Maintenance. | Five important points of maintenance''Map Reading''Mills "36" Grenade''The Rifle''Spotting Chairs - Daily Maintenance - 10 Minutes | Binoculars - Daily Maintenance - 10 Minutes''Telephones'. With diagrams.7 miscellaneous tables, totalling 6pp., 8vo; 1p., 12mo.Pencil notes, totalling 13pp., 12mo, on 11 loose leaves removed from a notebook, dating from between 4 October and 9 November 1942, and relating to 'Training at Nursling'.