| No. 540 Squadron RAF | |
|---|---|
| Active | 19 Oct 1942 – 30 Sep 1946 1 Dec 1947 – 31 Mar 1956 |
| Country |  United Kingdom |
| Branch |  Royal Air Force |
| Role | Photographic reconnaissance |
| Part of | No. 18 Group RAF, Coastal Command No. 16 Group RAF, Coastal Command No. 106 Group RAF, Coastal Command[1] |
| Motto(s) | Latin: Sine qua non (Translation: "Indispensable")[2][3] |
| Insignia | |
| Squadron Badge heraldry | A mosquito[3] The badge indicates the squadron as the first user of the de Havilland Mosquito[2] |
| Squadron Codes | DH (Nov 1945 – Sep 1946 and Dec 1947 – Aug 1953)[4][5] |
No. 540 Squadron RAF was a photoreconnaissance squadron of the Royal Air Force from 1942 to 1956.
- ^ Rafcommands
- ^ a b Rawlings 1982, p. 231.
- ^ a b Halley 1988, p. 405.
- ^ Bowyer & Rawlings 1979, p. 30.
- ^ Flintham & Thomas 2003, p. 149.