World War, 1939-1945, War Work

Scope and Contents

2 reports relating to the detection of ships and aircraft:

‘Report on the Use of Radiation of Wave-Length 5-10 cms. for the Detection and Automatic Following of Aircraft and Ships'. The material consists of a 16 page typescript, with photographs, regarding the Klystron and magnetron, no author or date, c. 1941).

‘Reception of R.D.F. [Radio Direction Finding] by ships at sea'. The material consists of a manuscript note and diagrams, no author or date.

Scope and Contents

The material consists of 3 reports on radio detection:

‘The power required in R.D.F. [Radio Direction Finding] systems and the echoing properties of various targets.’ A report from H. M. Signal School, Portsmouth, dated February 1941.

Report, ‘Material for prediction' (page 1 and cover missing), c. March 1941.

'A Note on the Optimum Wavelength for R.D.F. Performance’. A report from H.M. Signal School, Haslemere, dated May 1941.

Scope and Contents

Signed by Gordon Brown, then Prime Minister of the UK. 'The Government wishes to express to you its deepest gratitude for the vital service you performed during World War II'

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The material consists of Correspondence and calculations relating to reflection by C.G. Darwin and 3 reports by N.F. Mott relating to the scattering power of aircraft and echoes, all dated 1940.

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Correspondence, calculations and reports from F.M. Colebrook and J.M.C. Scott, dated 1940. The material relates to scattering and it includes a copy of a paper by Scott as submitted to the R.D.F. [Radio Direction Finding] Application Committee of Ministry of Supply, October 1940.

Scope and Contents Photographs, correspondence, postcards, notes, articles, magazines, material re Bletchley Park Trust, calendar, pamphlets.Includes the offer of employment from the Foreign Office to Irene Young for a technical assistant position at Bletchley Park, September 1942.Also includes a letter from Emily Young to her dautgher Irene Young on the rapprochement with Lieut. Leslie Cairns, Royal Artillery (then on service in North Africa), 1943. Leslie Cairns had sent a letter to...

Scope and Contents There are six bundles of lantern slides relating to Marjorie Rackstraw's war relief service in Russia. Photographer is unknown. Some slides include messages to encourage those in London to aid in the efforts, and include images of victims of the war, and places in Russia, as well as slides of text describing how and why it is Great Britain’s duty to assist in this aid. Others are images of children and families who are refugees of the famine. It may be of note that the lists Marjorie...

Scope and Contents

Offprint, and English translation of an Italian article on wireless range-finding. The material consists of 4 pages only of a report on German detection of English aircraft, dated September 1939.

Scope and Contents Reports and data. The material consists of:‘Ionization in the vicinity of an exploding shell’, a report from the Road Research Laboratory, dated July 1941.'Horizontal and vertical polarisation for R.D.F. [Radio Direction Finding] work'. A report from the Baddow Research Laboratories, dated August 1941.Optimum frequency tables. From the H.M. Signal School, Hademere, dated October 1941.'Experimental determination of the reflection coefficient of...

Scope and Contents Reports and newscuttings. The material consists of:'The limiting ranges of R.D.F. sets over the sea'. A report by F. Hoyle and M.H.L. Pryce for R. D. F. [Radio Direction Finding] Application Committee, Ministry of Supply, dated January 1942.Press-cutting (with scoring by Appleton) from ‘The Engineer’, on the history of radar, dated May 1942.'Reflection of 10 cm radiation by model aircraft'. A report from A.D.R.D.E. Christchurch [Air...