# List of anti-aircraft cooperation units of the Royal Air Force

This is a List of Anti-aircraft co-operation units of the Royal Air Force.

## Anti-Aircraft Co-operation Units

| Unit | Formed on | Formed at | Disbanded on | Disbanded at | Notes |
| Anti-Aircraft Co-operation Flight | 22 October 1931 | Biggin Hill | 14 April 1936 | Biggin Hill | Previously the Night Flying Flight |
| Anti-Aircraft Co-operation Unit | 14 April 1936 | Biggin Hill | 10 February 1937 | Biggin Hill | Previously the Anti-Aircraft Co-operation Flight |
| No. 1 Anti-Aircraft Co-operation Unit | 10 February 1937 | Biggin Hill | 1 October 1942 | Farnborough | Previously the Anti-Aircraft Co-operation Unit |
| 'A' Flight, 1 AACU then 'A1' Flight, 1 AACU | 10 February 1937 | Biggin Hill | 1 November 1942 | Weston Zoyland | Previously 'A' Flight, AACU |
| 'B' Flight, 1 AACU then 'B1' Flight, 1 AACU | 10 February 1937 | Bircham Newton | 1 November 1942 | Carew Cheriton | Previously 'B' Flight, AACU |
| 'C' Flight, 1 AACU then 'C1' Flight, 1 AACU | 15 March 1937 | Biggin Hill | 1 November 1942 | Towyn | |
| 'D' Flight, 1 AACU then 'D1' Flight, 1 AACU | 16 September 1937 | Biggin Hill | 1 November 1942 | Cleave | Previously No. 1 Queen Bee Flight |
| 'E' Flight, 1 AACU then 'E1' Flight, 1 AACU | 11 April 1938 | Farnborough | 1 October 1942 | West Freugh | |
| 'F' Flight, 1 AACU then 'F1' Flight, 1 AACU | 28 April 1938 | Farnborough | 1 November 1942 | Cark | |
| 'G' Flight, 1 AACU then 'G1' Flight, 1 AACU | 1 May 1939 | Usworth | 1 November 1942 | Cleave | |
| 'H' Flight, 1 AACU | 1 April 1939 | Biggin Hill | 1 July 1941 | Christchurch | |
| 'H1' Flight, 1 AACU | 1 January 1942 | Farnbrough | 1 November 1942 | Martlesham Heath | |
| 'J' Flight, 1 AACU then 'J1' Flight, 1 AACU | 1 December 1939 | Farnborough | 1 November 1942 | Bodorgan | |
| 'K' Flight, 1 AACU then 'K1' Flight, 1 AACU | December 1939 | Farnborough | 1 November 1942 | Langham | |
| 'L' Flight, 1 AACU then 'L1' Flight, 1 AACU | 26 March 1940 | Farnborough | 1 November 1942 | Aberporth | |
| 'M' Flight, 1 AACU then 'M1' Flight, 1 AACU | 27 September 1940 | Bircham Newton | 1 November 1942 | Langham | |
| 'N' Flight, 1 AACU then 'N1' Flight, 1 AACU | 13 January 1942 | Thornaby | 1 November 1942 | West Hartlepool | |
| 'O' Flight, 1 AACU then 'O1' Flight, 1 AACU | 5 November 1940 | Cleave | 1 November 1942 | Cleave | |
| 'P' Flight, 1 AACU then 'P1' Flight, 1 AACU | 25 August 1941 | Weston Zoyland | 1 November 1942 | Weston Zoyland | |
| 'Q' Flight, 1 AACU then 'Q1' Flight, 1 AACU | 30 June 1941 | Aberporth | 1 November 1942 | Aberporth | |
| 'R' Flight, 1 AACU then 'R1' Flight, 1 AACU | 30 June 1941 | Farnborough | 1 October 1942 | Cark | |
| 'S' Flight, 1 AACU | 26 January 1942 | Newtownards | 1 November 1942 | Newtownards | |
| 'T' Flight, 1 AACU | 21 January 1941 | Farnborough | 29 April 1942 | Weybourne | |
| 'U' Flight, 1 AACU | 15 August 1940 | St Athan | 30 October 1942 | Morfa Towyn | |
| 'V' Flight, 1 AACU | 14 May 1939 | Cleave | 1 November 1942 | Cleave | |
| 'W' Flight, 1 AACU | 16 May 1939 | Henlow | 18 April 1942 | Kidsdale | |
| 'X' Flight, 1 AACU | 15 May 1939 | Henlow | 1 November 1942 | Aberporth | Flying DH Queen Bee target drones from Weybourne from June 1939 |
| 'Y' Flight, 1 AACU | 11 April 1938 | Henlow | 16 August 1942 | Manorbier | |
| 'Z' Flight, 1 AACU | 11 April 1938 | Watchet | 1 November 1942 | Bodorgan | Previously 'D' Flight, 1 AACU |
| No. 2 Anti-Aircraft Co-operation Unit | 15 February 1937 | Lee-on-Solent | 14 February 1943 | Unk | |
| 'A' Flight, 2 AACU | Unk | Unk | 14 February 1943 | Gosport | |
| 'C' Flight, 2 AACU | Unk | Unk | 14 February 1943 | Roborough | |
| 'D' Flight, 2 AACU | Unk | Unk | 14 February 1943 | Detling | |
| Co-operation Flight, Mount Batten, 2 AACU | Unk | Unk | Unk | Unk | |
| No. 3 Anti-Aircraft Co-operation Unit | 1 March 1937 | Kalafrana, Malta | 19 September 1940 | Kalafrana | Became 830 Naval Air Squadron and No. 431 (General Reconnaissance) Flight RAF |
| No. 4 Anti-Aircraft Co-operation Unit | 1 August 1938 | Seletar, Singapore | 28 March 1942 | Mingaladon, Burma | |
| No. 5 Anti-Aircraft Co-operation Unit | 6 May 1940 | Ringway | August 1940 | Perth | |
| No. 6 Anti-Aircraft Co-operation Unit | 1 March 1940 | Ringway | 1 December 1943 | Castle Bromwich | Merged with No. 7 and No. 8 AACU's to become No. 577 Squadron RAF |
| No. 7 Anti-Aircraft Co-operation Unit | 26 March 1940 | Ringway | 1 December 1943 | Castle Bromwich | Merged with No. 6 and No. 8 AACU's to become No. 577 Squadron RAF |
| No. 8 Anti-Aircraft Co-operation Unit | 16 April 1940 | Ringway | 1 December 1943 | Pengham Moors | Merged with No. 6 and No. 7 AACU's to become No. 577 Squadron RAF |
| No. 9 Anti-Aircraft Co-operation Unit | 15 April 1940 | Ringway | Unk | Woodley | |
| No. 21 Anti-Aircraft Co-operation Unit | December 1942 | Takoradi, Gold Coast | 10 May 1945 | Robertsfield, Liberia | |
| No. 22 Anti-Aircraft Co-operation Unit | 3 December 1942 | Drigh Road, India | 1 April 1947 | Santa Cruz, India | |
| 'HQ' Flight, 22 AACU | Unk | Unk | 1 April 1947 | Santa Cruz, India | |
| 'A' Flight, 22 AACU | Unk | Unk | 1 April 1947 | Drigh Road, India | |
| 'B' Flight, 22 AACU | Unk | Unk | 1 April 1947 | Poona, India | |
| No. 23 Anti-Aircraft Co-operation Unit | 1 August 1943 | Habbaniya, Iraq | 15 March 1946 | Ciampino, Italy | |
| No. 25 Anti-Aircraft Co-operation Unit | 15 January 1943 | UK | 5 November 1945 | Eastleigh, Kenya | |
| No. 26 Anti-Aircraft Co-operation Unit | November 1942 | El Firdan, Egypt | 31 March 1947 | Aqir, Palestine | |
| No. 1 Civilian Anti-Aircraft Co-operation Unit | 7 December 1950 | RAF Hornchurch | 31 December 1956 | RAF Hornchurch | |
| No. 2 Civilian Anti-Aircraft Co-operation Unit | 20 July 1951 | RAF Little Snoring | 1 November 1958 | RAF Langham | |
| No. 3 Civilian Anti-Aircraft Co-operation Unit | 18 March 1951 | RAF Exeter | 1 July 1954 | RAF Exeter | |
| No. 3/4 Civilian Anti-Aircraft Co-operation Unit | 1 July 1954 | RAF Exeter | 31 December 1971 | RAF Exeter | |
| No. 4 Civilian Anti-Aircraft Co-operation Unit | 1 August 1951 | RAF Llandow | 1 July 1954 | RAF Llandow | |
| No. 5 Civilian Anti-Aircraft Co-operation Unit | 16 September 1951 | RAF Llanbedr | 30 September 1971 | RAF Woodvale | |
* Anti-Aircraft Co-operation Flight RAF (1931–36) became Anti-Aircraft Co-operation Unit RAF
* Anti-Aircraft Co-operation Flight, Indian Air Force Volunteer Reserve (1941–42) became No. 1 Anti-Aircraft Co-operation Flight, Indian Air Force Volunteer Reserve
* No. 1 Anti-Aircraft Co-operation Flight, Indian Air Force Volunteer Reserve (1942) became No. 1 Anti-Aircraft Co-operation Unit, Indian Air Force
* No. 2 Anti-Aircraft Co-operation Flight, Indian Air Force Volunteer Reserve (1942) became No. 2 Anti-Aircraft Co-operation Unit, Indian Air Force
* No. 3 Anti-Aircraft Co-operation Flight, Indian Air Force Volunteer Reserve (1942) became No. 3 Anti-Aircraft Co-operation Unit, Indian Air Force