|No. 231 Squadron RAF|
20 Aug 1918 - 7 Jul 1919|
1 Jul 1940 - 15 Jan 1944
8 Sep 1944 - 15 Jan 1946
|Branch||Royal Air Force|
|Motto(s)||Prepared to Attack (unofficial)|
|Squadron Codes||VM (Jul 1940 - Apr 1943)|
In World War I
No. 231 Squadron was formed form Nos. 329 and 330 Flights of the seaplane station at the Seaplane Experimental Station at Royal Naval Air Station Felixstowe on 20 August 1918 and flew anti-submarine patrols for the remaining months of the war. On 7 July 1919 it was disbanded.
In World War II
As an army co-operation squadron
On 1 July 1940, No. 231 reformed from No. 416 Flight at RAF Newtownards as an army co-operation squadron equipped with Lysanders. In addition to taking part in excesises with the Army, it flew patrols along the border with Éire. In September 1941 conversion to Curtiss Tomahawks began, but a flight of Lysanders was retained until July 1943. In March 1943 the squadron moved to Yorkshire but left a detachment in Ulster until July, and in April North American Mustangs began to arrive. By the time No. 231 joined No. 128 Airfield of Second TAF on 22 July 1943, it was fully equipped with Mustangs, this type having flown the squadron's first offensive operations on 4 July. Shipping and weather reconnaissance missions, defensive patrols and ground attack sorties over northern France were flown until the squadron disbanded on 15 January 1944.
In the transport and communications role
On 8 September 1944, No. 231 reformed at Dorval, Canada, from No. 45 Group Communications Squadron. The Group's main task was the ferrying of American and Canadian built aircraft across the Atlantic. It also administrated trans-Atlantic passenger and freight services and No. 231's Coronado flying boats opererated between North America, West Africa and the UK, using Largs as its British terminal. Other flights were flown with landplanes, using several of the types available to No. 45 Group as required. In September 1945 the squadron moved to Bermuda, where it disbanded on 15 January 1946. On 1 December 1945, a flight was formed to train Avro Lancastrian crews at RAF Full Sutton but its task was taken over by the station when No. 231 disbanded, the Lancastrian Flight becoming the Lancastrian Training Unit/No 1699 HCU. Although it was allotted the squadron number on 16 January 1946, training ceased on 28 March 1946.
There is no official insignia noted for this squadron. There is however a black-and-white photograph of an unofficial insignia affixed to an entry dated March 30, 1942 in the Pilots Log Book of Kenneth Oliver Peachey. The insignia is of a light coloured horse leaping over a fence from right to left. This is superimposed over a 3 leaf clover. A motto "in hoc signo vinces" appears under the insignia, which would translate as "In this sign you will conquer".
|Aug 1918||Mar 1919||Felixstowe F.2a
|twin-engined reconnaissance flying boats|
|Nov 1918||Mar 1919||Felixstowe F.5||twin-engined reconnaissance flying boat|
|Jul 1940||Jul 1943||Westland Lysander||Mk. II, III||Single-engined liaison monoplane|
|Sep 1941||Jul 1943||Curtiss Tomahawk||Mk. I, IIb||Single-engined fighter|
|Apr 1943||Jan 1944||North American Mustang||Mk. I||Single-engined fighter|
|1944–1946||Various (see below)||Transport aircraft|
|Dec 1945||Jan 1946||Avro Lancaster||Mk. III||Four-engined transport version of the bomber|
|Jan 1946||Jan 1946||Avro Lancastrian||C2||Four-engined transport|
From September 1944 the squadron operated various different transport aircraft from Dorval:
- Douglas Dakota(1944–1946)
- Lockheed Hudson IIIA (1944–1946)
- Lockheed Hudson VI (1944–1945)
- Consolidated Liberator I, II and II (1944–1946)
- Consolidated Coronado (1944–1946)
- Spartan Executive (1944–1945)
- Martin Marauder(1944–1945)
- C-87 Liberator Express (1945–1946)
- Halley 1988, p. 299.
- Halley, James J. The Squadrons of the Royal Air Force & Commonwealth 1918-1988. Tonbridge, Kent, UK: Air Britain (Historians) Ltd., 1988. ISBN 0-85130-164-9.
- Jefford, Wing Commander C.G., MBE,BA, RAF (Retd). RAF Squadrons, a Comprehensive Record of the Movement and Equipment of all RAF Squadrons and their Antecedents since 1912. Shrewsbury, Shropshire, UK: Airlife Publishing, 2001. ISBN 1-84037-141-2.
- Peachey, K.O. RAF Pilot's Flying Log Book, R.C.A.F Form r.95 (R.A.F 414) 13M-10-40 (7786) H.Q. 1062-3-78
- Rawlings, John D.R. Coastal, Support and Special Squadrons of the RAF and their Aircraft. London: Jane's Publishing Company Ltd., 1982. ISBN 0-7106-0187-5.
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