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Catalogue description Air Ministry: Headquarters No. 90 (Signals) Group and predecessors: Technical Drawings
| Reference: | AIR 56 |
|---|---|
| Title: | Air Ministry: Headquarters No. 90 (Signals) Group and predecessors: Technical Drawings |
| Description: |
This series includes drawings of transmitting and receiving stations, aerial systems, and various parts of telecommunications equipment. Drawings of an earlier date than 1946 originated with the several predecessors of No. 90 Group. |
| Date: | 1934-1952 |
| Related material: |
See also the Defence Signals Staff registered files in |
| Held by: | The National Archives, Kew |
| Legal status: | Public Record(s) |
| Language: | English |
| Creator: |
Air Ministry, Headquarters No 90 (Signals) Group, 1946-1958 |
| Physical description: | 61 flat sheet(s) |
| Access conditions: | Subject to 30 year closure |
| Administrative / biographical background: |
No. 90 Group was formed at Medmenham, Buckinghamshire, by the merger, on 25 April 1946, of Nos. 26 and 60 Groups, when it also assumed responsibilities previously exercised by various directorates of the Air Ministry and the Ministry of Aircraft Production. It was responsible for all aspects of radio engineering, electronic warfare, telecommunications and the operation of navigational aids in the Royal Air Force. Drawings of an earlier date than the merger originated with the predecessors of No. 90 Group. |
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