Record revealed
Copy of Henry VIII's diplomatic assurances to João III of Portugal
Recently rediscovered, this letter offers new archival evidence into Britain and Portugal's shared history.
Series
Ministry of Civil Aviation and successors: Telecommunications Directorate: Registered...
Catalogue reference: BT 252
What's it about?
BT 252
This series contains files of the Telecommunications Directorate of the Civil Aviation Departments relating to the development, siting, organisation and maintenance of telecommunications systems and equipment.The subject matter of the files...
Full description and record details
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Reference (The unique identifier to the record described, used to order and refer to it)
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BT 252
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Title (The name of the record)
- Ministry of Civil Aviation and successors: Telecommunications Directorate: Registered Files (TN and Tels Series)
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Date (When the record was created)
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1926-1971
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Description (What the record is about)
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This series contains files of the Telecommunications Directorate of the Civil Aviation Departments relating to the development, siting, organisation and maintenance of telecommunications systems and equipment.
The subject matter of the files includes:
- international convention on aeronautical telecommunications
- British participation in international telecommunications developments through organisations such as the International Civil Aviation Organisation and the International Telecommunications Union
- the selection of radio frequencies to be used for aeronautical telecommunications
- the investigation, development and elevation of radar surveillance systems and equipment, navigational aids and landing aids, including the Instrument Landing System, 'Decca', and Distance Measuring Equipment
- the provision of air traffic control facilities and centres, including some files which relate to specific airports and air traffic control centres
The series also contains minutes and papers of the Civil Aviation Radio Advisory Committee, and a small number of files relating to air accidents and air misses.
The papers in this series are of the TN and Tels registered file series, which ran roughly from 1947 to 1956 and 1953 to 1970 respectively. The Tels series includes some re-registered TN files. A series of TE files opened in 1970 passed to the Civil Aviation Authority upon their formation in 1972.
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Related material (A cross-reference to other related records)
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For registered files of the National Air Traffic Services Directorate of Air Navigation Services see DR 37
Further TELS series files are in DR 39
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Held by (Who holds the record)
- The National Archives, Kew
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Former department reference (Former identifier given by the originating creator)
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TN and Tels file series
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Legal status (A note as to whether the record being described is a Public Record or not)
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Public Record(s)
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Language (The language of the record)
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English
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Creator(s) (The creator of the record)
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- Board of Trade, Telecommunications Directorate, 1966-1970
- Board of Trade, Telecommunications Directorate (Air Traffic Services), 1969-1970
- Department of Trade and Industry, Telecommunications Directorate (Air Traffic Services), 1970-1972
- Ministry of Aviation, Navigational Services, 1959-1966
- Ministry of Civil Aviation, Directorate of Navigational Services (Telecommunications), 1948-1953
- Ministry of Civil Aviation, Telecommunications Directorate, 1945-1948
- Ministry of Transport and Civil Aviation, Civil Aviation Department, Telecommunications Directorate, 1953-1959
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Physical description (The amount and form of the record)
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494 file(s)
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Access conditions (Information on conditions that restrict or affect access to the record)
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Subject to 30 year closure
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Subjects (Categories and themes found in our collection (our subject list is under development, and some records may have no subjects or fewer than expected))
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Administrative / biographical background (Historical or biographical information about the creator of the record and the context of its creation)
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The Telecommunications Directorate consisted of a number of sections (Tels 1, Tels 2 etc.) and its Director reported to the Director General of Navigational Services. In November 1948 it became the Directorate of Navigational Services (Telecommunications) which it remained until 1953, when on the formation of the Ministry of Transport and Civil Aviation its title reverted back to the Telecommunications Directorate (or Civil Aviation Telecommunications Directorate).
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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C3289/
Catalogue hierarchy
Over 27 million records
This record is held at The National Archives, Kew
2,674,133 records
Within the department: BT
Records of the Board of Trade and of successor and related bodies
You are currently looking at the series: BT 252
Ministry of Civil Aviation and successors: Telecommunications Directorate: Registered Files (TN and Tels Series)
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