It had three squadrons equipped with Short Sunderland flying boat patrol bomber.

The group had two units operating with Avro Anson, a twin-engined multi-role aircraft, across four stations, No.

5 Coastal Patrol Flights, both equipped with de Havilland Tiger Moth, a biplane trainer aircraft, and de Havilland Hornet Moth, a cabin biplane, were based at RAF Hooton Park and RAF Carew Cheriton respectively.

[7] Its squadrons provided support and convoy escorts, maritime reconnaissance and anti-submarine warfare in the South West, Western Approaches and the Irish Sea.

210 Squadron had moved to RAF Oban, located in Argyll and Bute, Scotland.

502 Squadron was now operating with Armstrong Whitworth Whitley, a medium bomber, and was based alongside No.

211 Squadron, equipped with Vickers Wellington, a long-range medium bomber, at RAF Limavady, near the city of Derry, Northern Ireland.

209 and 240 Squadrons both operated with Consolidated Catalina, but were also equipped with Saunders-Roe Lerwick and Supermarine Stranraer respectively.

119 Squadron had reformed at RAF Bowmore, Strathclyde, Scotland, on 13 March 1941 as part of No.

The squadron also had a similar flight at RAF Port Ellen, on the island of Islay in Argyll and Bute.

The Coastal Command Development Unit RAF, which was set up to undertook service trials of all radar equipment, was operating under No.

15 Group and the unit was working out of RAF Ballykelly, located in County Londonderry, Northern Ireland.

1402 (Meteorological) Flight, which used Supermarine Spitfire, Lockheed Hudson and Gloster Gladiator, and No.

201 Squadron based in Northern Ireland, at RAF Lough Erne, which was also home to No.

120 and 220 Squadrons, which operated from RAF Nutts Corner, in County Antrim and were equipped with Consolidated Liberator and Boeing Fortress, both types being American four-engined heavy bomber aircraft, respectively.

The Group Communications Flight had by this time relocated to RAF Speke, located in Liverpool.

1402 (Meteorological) Flight, equipped with Gloster Gladiator, Supermarine Spitfire and Handley Page Hampden, a medium bomber, and No.

In Scotland, RAF Tiree on the island of Tiree in the Inner Hebrides, was home to 518 Squadron which was equipped with Handley Page Halifaxes, a four-engined heavy bomber and 281 Squadron with the Vickers Warwick, a maritime reconnaissance, air-sea rescue and transport aircraft.

518 Squadron, equipped with Handley Page Halifax and based at RAF Tiree.

The squadron also had a similar detachment at RAF Valley, on the island of Anglesey, Wales.

1402 (Meteorological) Flight, which used Supermarine Spitfire and Hawker Hurricane and operated out of RAF Ballyhalbert, situated in County Down, and No.

281 Squadron was based at RAF Limavady, providing air sea rescue like its detachments.

15 Group, was the Coastal Command Anti U-Boat Devices School RAF,[15] which had previously existed under different identities since 1940, and was equipped with Vickers Wellington VIII.

[19] It operated various types and marks of aircraft:[10] It disbanded at RAF Speke on 1 August 1945.