The following squadrons were stationed at RAF Portreath during WW 2.
Poplar – code name for reconaissance and destroy mission.
Rhubarb – pairs of aircraft assigned to hit a designated target.
Ranger – pairs of aircraft assigned to hit targets of opportunity.

Unit Sqd Code Other Information Dates stationed Aircraft Used Duties
66 LZ 14 Dec 1941 to 27 Apr 1942 Supermarine Spitfire Fighter sweeps over the Channel
130 PJ 16 Jun 1941 to 25 Oct 1941 Supermarine Spitfire Convoy protection and local air defence
143 TW 16 Sep 1943 to 12 Feb 1944 Bristol Beaufighter
152 UM 9 Apr 1941 to 25 Aug 1941 Supermarine Spitfire Convoy patrols
153 TB 18 Dec 1942 to 20 Dec 1942 Bristol Beaufighters Ground attack
217 On Detachment 1 Jun 1942
234 AZ 27 Apr 1942 to 26 Apr 1943 Supermarine Spitfire Convoy patrols
235 LA 29 Aug 1943 to 06 Sep 1944 Bristol Beaufighters Fighter sweeps over France and the Bay of Biscay
247  ZY 10 May 1941 to 18 Jun 1941 Hawker Hurricane Fighter sweeps over Northern France and night interceptions
248 DM 17  Feb 1944 to 12 Sep 1944 Bristol Beaufighters Fighter sweeps over France and the Bay of Biscay
263 HE 18 Mar 1941 to 10 Apr 1941 Westland Whirlwind Convoy protection and bomber escorts
313         (Czech) RY 26 Aug to 15 Dec 1941 Supermarine Spitfire Offensive sweeps and fighter cover
400    (Canadian) SP On Detachment Dec 1942 North American P51 Mustang Rhurbarbs and populars over France and the Channel and convoy escorts and coastal protection
414   (Canadian) RU 4 Jun 1943 to 19 Jun 1943 North American P51 Mustang Rhurbarbs and Populars over France and the Channel and convoy escorts and coastal protection
613 SY 20 Jun 1943 to 15 Jul 1943 North American P51 Mustang Rhurbarbs and fighter sweeps over France
639 R9 On Detachment Summer 1944 to 1945 Hawker Henley Anti-Aircraft co-coperation
639 R9 On Detachment Summer 1944 to 1945 Hawker Hurricane Anti-Aircraft co-coperation
330 (B) Wing 9 Dec to 18 Dec 1942  142,150 Squadron
153 (GR) Wing 15 Apr 1944 to 14 Sep 1944 235,248 Squadron
Oversears Air Dispatch Unit Jan 1942 to 10 Oct 1945
1478 Flight 11 Jun 1943 to 12 Jun 1943
ASDU 1944 to 1945  Vickers Wellington
ASDU 1945 to 1945  Vickers Warwick