Unit |
Dates |
Aircraft |
Base |
Notes |
226 OCU |
Aug 46–Aug 49 Sep 49–Jun 55 Jun 63–Sep 74 Oct 74–Sep 91 |
Oxford I, Beaufighter X Hornet F.1 Mosquito III/TT.35 Tiger Moth II Vampire F.1/FB.5/T.11 Meteor F.3/F.4/T.7/F.8/FR.9 Tempest II Martinet I Spitfire XIV/XVI/XVIII/XIX/F.22 Javelin T.3 Lightning F.1/F.1A/F.3/T.4/T.5 Jaguar GR.1/T.2 |
RAF Molesworth RAF Bentwaters RAF Driffield RAF Stradishall RAF Middleton St. George RAF Coltishall RAF Lossiemouth |
Formed at Molesworth by re-designating 1335 (Meteor) CU. Disbanded at Driffield to become 203 AFS. Re-formed at Stradishall by renaming 203 AFS. Re-formed at Middleton St. George by merging the Lightning Conversion Squadron and the Fighter Command Instrument Rating Squadron. Disbanded at Coltishall. Immediately re-formed at Lossiemouth by re-designating the Jaguar Operational Conversion Unit. Disbanded at Lossiemouth to become 16 (Reserve) Sqn |
227 OCU 227 (AOP) CU |
May 47–Dec 47 Dec 47–May 50 |
Tiger Moth II Oxford I Auster V Auster VI Auster T.7 Auster A.2/45 Harvard IIB |
RAF Andover RAF Middle Wallop |
Formed by re-designation of No. 43 OTU Became the Air Observation Post School. |
228 OCU |
May 47–Sep 61 May 65–Dec 66 Aug 68–Jul 92 |
Martinet I Master II Oxford I Tiger Moth II Brigand B.1/T.4/T.5 Tempest V Buckmaster T.1 Wellington XVIII Mosquito III/VI/NF.30/TT.35/NF.36 Balliol T.2 Valetta C.1/T.3/T.4 Prentice T.1 Vampire T.11 Meteor F.4/T.7/NF.11/NF.12/NF.14 Anson XIX Chipmunk T.10 Javelin T.3/FAW.5/FAW.7/FAW.9 Canberra T.4/T.11 Phantom FGR.2 Jet Provost T.4 |
RAF Leeming RAF Leuchars RAF Coningsby |
Formed by merging No. 13 OTU and No. 54 OTU Became 64 (R) Sqn |
229 OCU |
Dec 50–Sep 74 Nov 84–Jul 92 |
Vampire FB.5/T.11 Meteor T.7/F.8/TT.8 Hunter F.1/F.4/F.6/T.7/FGA.9/FR.10 Tempest V Beaufighter X Oxford I/II Mosquito III/TT.35 Martinet I Anson T.21/T.22 Sabre F.2/F.4 Chipmunk T.10 Jet Provost T.3A Tornado F.2(T)/F.3 |
RAF Leuchars RAF Chivenor RAF Brawdy RAF Coningsby |
Formed from 'B' and 'D' Flights of 226 OCU. Reformed 1957 at Chivenor, still there late 1962. Relocated to RAF Brawdy mid 1960s Disbanded 2 September 1974 at Brawdy to become the Tactical Weapons Unit Designated 65 (Shadow) Squadron from 31 December 1986 Became 56 (R) Sqn. |
230 OCU |
Mar 47–Oct 52 Aug 53–Feb 55 May 56–Aug 81 |
Lancaster I/III Lincoln B.2 Mosquito III/B.35/NF.36 Tiger Moth Anson XIX Vulcan B.1/B.2 Hastings T.5 Canberra T.4 |
RAF Lindholme RAF Scampton RAF Upwood RAF Waddington RAF Finningley RAF Scampton |
Formed by re-designting 1653 HCU Disbanded 15 October 1952 to become the Reserve Training Squadron Became the Lincoln Conversion Flight at Upwood 1 February 1955. |
231 OCU |
Mar 47–Dec 49 Dec 51–Dec 90 May 1991–Apr 93 |
Lancaster I/III Anson XII/XIX/T.22 Mosquito III/VI/XVI/PR.34/PR.34A/B.35 Chipmunk T.10 Meteor T.7/PR.10 Canberra B.2/PR.3/T.4 |
RAF Coningsby RAF Waddington RAF Bassingbourn RAF Cottesmore RAF Marham RAF Wyton |
Formed by re-designating No. 16 OTU re-formed at Bassingbourn by re-designation of 237 OCU Disbanded at Wyton, 15 December 1990, to become the Canberra Standardisation and Training Flight Re-formed at Wyton 13 May 1990 from the Canberra Standardisation and Training Flight |
232 OCU |
Feb 55–Jun 65 Feb 70–Apr 86 |
Valiant B.1 Victor B.1/B(PR).1/B.1A/B.2/BK.2 Canberra T.4 |
RAF Gaydon RAF Marham |
At Gaydon, 30 June 1965, the Victor element became the Tanker Training Flight Re-formed at Marham 6 February 1970 by amalgamating the Victor (B.2) Training Flight and the Victor Training Unit |
233 OCU |
Sep 52–Sep 57 Oct 70–Sep 92 |
Vampire FB.5/FB.9/T.11 Balliol T.2 Meteor T.7/F.8 Oxford I Tiger Moth II Mosquito III/PR.34A/TT.35 Tempest V Chipmunk T.10 Hunter F.1 Harrier GR.1/GR.1A/GR.3/GR.3A/T.2/T.4/T.4A/GR.5 |
RAF Pembrey[1] RAF Wittering |
Became 20 (R) Sqn |
235 OCU |
Jul 47–Oct 53 |
Sunderland V Short Seaford |
RAF Calshot |
Became the Flying Boat Training Squadron |
236 OCU |
Jul 47–Sep 56 Jul 70–Sep 92 |
Lancaster III Oxford I/II Beaufighter X Shackleton GR.1/MR.1A Neptune MR.1 Martinet I Tiger Moth II Spitfire XVI Vampire FB.5 Anson XI/XIX Mosquito TT.35 Brigand T.5 Buckmaster T.1 Nimrod MR1 & MR2 |
RAF Kinloss RAF St Mawgan |
Formed by re-designating No. 6 OTU |
237 OCU |
Jul 47–Dec 51 Oct 56–Jan 58 Mar 71–Oct 91 |
Oxford I Mosquito III/PR.34/PR.34A Spitfire XVI/XIX Harvard IIB Meteor T.7/PR.10 Canberra PR.3/T.4 Hunter F.6/T.7/T.7A/T.7B/T.8C Buccaneer S.2A/S.2B |
RAF Benson RAF Bassingbourn RAF Wyton RAF Honington RAF Lossiemouth |
Formed by re-designating No. 8 OTU Became 231 OCU at Bassingbourn. Re-formed at Wyton, 1956, by re-designating 'C' Squadron of 231 OCU. Re-absorbed by 231 OCU January 1958. |
238 OCU |
1 Jun 52–Mar 58 |
Buckmaster T.1 Brigand T.4/T.5 Mosquito TT.35 Balliol T.2 Meteor NF.12/NF.14 Valetta C.1/T.3 |
RAF Colerne RAF North Luffenham |
Formed by re-designating the Airborne Interception School |
240 OCU |
Jan 48–Apr 51 Dec 71–Oct 93 |
Anson I/X/XII/XIX Dakota IV Hastings MET.1 Valetta C.1 Wessex HC.2 Puma HC.1 ChinookHC.1 |
RAF North Luffenham RAF Odiham |
Formed by merging 1333 (TS)CU with 1382 (T)CU |
241 OCU |
Jan 48–Apr 51 Jul 70–Oct 93 |
York C.1 Halifax IX Hastings C.1 Valetta C.1 Tiger Moth II Anson XI/XII Brittania C.1/C.2 Andover C.1 Belfast C.1 VC10 C.1 Tristar C.1 BAe 146 |
RAF Dishforth RAF Brize Norton |
Formed by re-designating 1332 HTCU. Became No. 55 (Reserve) Squadron RAF |
242 OCU |
Apr 51–Jul 92 |
Valetta C.1 Hastings C.1/MET.1/C.1A Beverley C.1 Argosy C.1 Andover C.1 Hercules C.1/C.1K/C.1P/C.3 Tiger Moth II Anson XII Chipmunk T.10 |
RAF Dishforth RAF Thorney Island RAF Lyneham |
Became 57 (R) Sqn |
1330 CU |
Jun 44–Mar 46 |
Harvard IIA Baltimore IV/V Vengeance IV Hudson IIIA Expeditor I Marauder II/III Ventura V Hellcat II Beaufighter X Spitfire Vb Mustang IVA Anson I Dakota I/III Douglas DC-2 Mosquito III/IV Oxford I |
RAF Bilbeis |
No. 1 (Middle East) Check and Conversion Unit RAF re-designated. |
1331 CU 1331 HTCU |
Sep 44–Jan 46 Dec 46–Jan 48 |
Harvard IIB Vengeance IA/II/IV Beaufighter VI/X Spitfire VIII Mustang IV Mosquito III Oxford I Blenheim V Thunderbolt I/II Hurricane IIC Wellington XVI Liberator III/VI |
RAF Mauripur RAF Risalpur RAF Syerston |
Formed by re-designating Check and Conversion Flight. |
1332 (T)HCU 1332 HTCU |
Sep 44–May 47 May 47–Jan 48 |
Liberator III/V /VI/VII/IX York C.1 Stirling III Halifax VII/IX Skymaster C.1 Oxford I |
RAF Longtown RAF Dishforth |
Became 241 OCU. |
1333 (TS)CU 1333 TSCU |
Mar 45–Jul 46 Jul 46–Jan 48 |
Dakota III/IV Horsa I/II Halifax VII/IX Oxford II Miles Magister Tiger Moth Proctor IV Auster III |
RAF Leicester East RAF North Luffenham |
Formed by re-designating No. 107 OTU Merged with 1382 (T)CU to become 240 OCU. |
1334 (TS)CU |
Apr 45–Mar 45 |
Dakota III/IV |
RAF Gujrat RAF Baroda |
|
1335 (M)CU |
Mar 45–Aug 46 |
Meteor F.1/F.3 Oxford II Martinet I |
RAF Colerne RAF Molesworth |
Became 226 OCU |
1336 (TS)CU 1336 TCU |
Jun 45–Mar 46 |
Dakota III |
RAF Welford |
|
1380 (TS)CU 1380 TCU |
Aug 45–Jan 46 |
Wellington X Anson I Proctor II |
RAF Tilstock |
Formed by re-designating No. 81 OTU |
1381 (T)CU |
Aug 45–Feb 48 |
Dakota III/IV Wellington X Miles Magister Tiger Moth II Oxford I |
RAF Bramcote RAF Dishforth |
Formed by re-designating No. 105 OTU |
1382 (T)CU |
Aug 45–Jan 48 |
Oxford I Miles Magister Dakota III/IV |
RAF Wymeswold RAF North Luffenham |
Formed by re-designating No. 108 OTU Merged with 1330 TSCU to form 240 OCU. |
1383 (T)CU |
Aug 45–Aug 46 |
Dakota III Oxford II Halifax VII |
RAF Crosby-on-Eden |
Formed by re-designating No. 109 OTU |
1384 (HT)CU |
Nov 45–Jun 46 |
Dakota I Oxford I York C.1 |
RAF Ossington RAF Wethersfield |
Formed by re-designating No. 6 Lancaster Finishing School RAF |
1385 (HTS)CU |
Apr 46–Jun 46 |
Stirling V Halifax VII Horsa II Oxford I |
RAF Wethersfield |
Absorbed by 1333 TSCU |
1584 (HB)CU |
Nov 43–Feb 44 |
Liberator III |
RAF Kolar RAF Salbani |
Formed by re-designating No. 1584 (Heavy Bomber Conversion) Flight RAF. Became 1673 HCU. |
1651 CU 1651 HCU |
Jan 42–July 44 May 44–Mar 45 Mar 45–Jul 45 |
Stirling I/III Lancaster I/III Oxford I Spitfire Vb Tiger Moth II Beaufighter X Halifax II |
RAF Waterbeach RAF Wratting Common RAF Woolfox Lodge |
During 1942 it flew 49 operational sorties for RAF Bomber Command with a loss of five aircraft. Formed by merging No. 26 Conversion Flight RAF and No. 106 Conversion Flight RAF. Absorbed 15 Squadron Conversion Flight and 24 Squadron Conversion Flight. |
1652 CU 1652 HCU |
Jan 42–Jun 45 |
Halifax I/II/III/V Spitfire Vb Hurricane IIC Spitfire Vb Hurricane IIC/IV |
RAF Marston Moor RAF Bentwaters |
During 1942 it flew 42 operational sorties for RAF Bomber Command with a loss of three aircraft. Formed by merging No. 28 Conversion Flight RAF and No. 109 Conversion Flight RAF. Absorbed 35 Squadron Conversion Flight |
1653 CU 1653 HCU |
Jan 42–Oct 42 Nov 43–Nov 46 |
Liberator II Stirling I/III Lancaster I/III Blenheim IV Ventura I Mosquito XIX Hurricane IIC Spitfire Vb Beaufighter VI |
RAF Polebrook RAF Burn RAF Chedburgh RAF Lindholme RAF North Luffenham |
Formed by re-designating No. 108 Conversion Flight RAF Became No. 230 Operational Conversion Unit RAF in March 1947. |
1654 CU 1654 HCU |
May 42–Jul 42 Jul 42–Sep 45 |
Manchester I Lancaster I Halifax II/V Stirling III Oxford I Hurricane IIC Spitfire Vb |
RAF Swinderby RAF Wigsley |
During 1942 it flew 12 operational sorties with a loss of two aircraft. |
1655 MCU |
Aug 42–May 43 |
Mosquito III/IV/XVI/B.20/B.25 Blenheim IV Oxford I |
RAF Horsham St. Faith RAF Upper Heyford RAF Marham |
Became Mosquito Training Unit RAF at RAF Marham |
1656 HCU |
Oct 42–Nov 45 |
Lancaster I/III Halifax II/V Manchester I Spitfire IIa/Vb Hurricane IIC |
RAF Lindholme Tiger Moth II |
Formed by merging 103 and 460 Squadron Conversion Fights. |
1657 HCU |
Oct 42–Dec 44 |
Stirling I/III/IV Lancaster I/II Tomahawk IIB Oxford II Hurricane IIC |
RAF Stradishall |
Formed by merging 7, 101 and 149 Squadron Conversion Fights. |
1658 HCU |
Oct 42–Apr 45 |
Halifax I/II/III Oxford II Hurricane IIC |
RAF Riccall |
Formed by merging 10, 76 and 78 Squadron Conversion Fights. |
1659 HCU |
Oct 42–Mar 43 Mar 43–Sep 45 |
Halifax I/II/III Lancaster I/III Oxford II Spitfire IIa/Vb Hurricane IIC Tiger Moth |
RAF Leeming RAF Topcliffe |
Formed by merging 405 and 408 Squadron Conversion Fights. Trained Canadian aircrew. |
1660 HCU |
Oct 42–Nov 46 |
Lancaster I/II/III Halifax II Manchester I Mosquito XIX Stirling I/III Oxford I Spitfire Vc Hurricane IIC Lysander I de Havilland Puss Moth |
RAF Swinderby |
Formed by merging 61, 97, 106 and 7 Squadron Conversion Fights. Absorbed by No. 1653 Heavy Conversion Unit RAF |
1661 HCU |
Nov 42–Aug 45 |
Lancaster I/II Halifax II/V Manchester I Mosquito XIII Stirling III Oxford II Spitfire Vb Hurricane IIC |
RAF Winthorpe |
Formed by merging 9, 44 and 49 Squadron Conversion Fights. Short Stirlings replaced the planned re-equipment with Handley Page Halifaxs.[3] |
1662 HCU |
Jan 43–Apr 45 |
Lancaster I/II Halifax I/II/III/V Oxford II Spitfire Vb Hurricane IIC Tiger Moth II |
RAF Blyton |
|
1663 HCU |
Mar 43–May 45 |
Halifax I/II/III/V Stirling I Oxford II Spitfire Vb Hurricane IIC |
RAF Rufforth |
|
1664 HCU 1664 (RCAF)HCU |
May 43–Apr 44 Apr 44–Apr 45 |
Lancaster I/III Halifax II/III/V Oxford II Spitfire Vb Hurricane IIC |
RAF Croft RAF Dishforth |
The unit had the Canadian name Caribou. |
1665 HCU 1665 (HT)CU |
Apr 43–Jun 43 Jun 43–Jan 44 Jan 44–Aug 45 Aug 45–Jul 46 |
Halifax III/V/VI/VII Stirling I/III/IV Oxford II Spitfire IIa/Vb Hurricane X Tiger Moth II Mosquito VI Lancaster I |
RAF Mepal RAF Woolfox Lodge RAF Tilstock RAF Saltby RAF Marston Moor RAF Linton-on-Ouse |
Re-designated as 1665 (HT)CU on 10 August 1945 |
1666 HCU 1666 (RCAF)HCU |
Jun 43–Oct 43 Oct 43–Aug 45 |
Halifax II/III/V Lancaster I/II/III Oxford II Spitfire IIa/Vb Hurricane IIC |
RAF Dalton RAF Wombleton |
The unit had the Canadian name Mohawk. |
1667 HCU |
Jun 43–Oct 43 Oct 43–Feb 44 Feb 44–Nov 45 |
Halifax II/V Oxford II Spitfire Vb Hurricane IIC Tiger Moth II Lancaster I/III |
RAF Lindholme RAF Faldingworth RAF Sandtoft |
|
1668 HCU |
Aug 43–Nov 43 Jul 44–Mar 46 |
Lancaster I/II/III/X Mosquito XIX Spitfire Vb Hurricane IIC Beaufighter VI |
RAF Balderton RAF Bottesford |
Disbanded November 1943, re-formed July 1944. |
1669 HCU |
Aug 44–Mar 45 |
Handley Page Halifax Lancaster I/III Spitfire Vb Hurricane IIC |
RAF Langar |
|
1670 (T)CU |
Jun 44–Jan 45 |
Thunderbolt Harvard IIB |
RAF Yelahanka |
Became 8 Refresher Flying Unit |
1670 CU |
Feb 44–Jun 44 |
Beaufighter VI |
RAF Baigachi |
Formed from AI MkVIII Conversion Flight |
1670 (M)CU |
Feb 44–Aug 45 |
Blenheim V Mosquito III Oxford I |
RAF Yelahanka |
|
1673 HCU |
Feb 44–Apr 44 Apr 44–Nov 44 |
Liberator III Tiger Moth II Anson I |
RAF Salbani RAF Kolar |
Formed by re-designating No. 1584 (Heavy Bomber) Conversion Unit RAF. |
1674 HCU |
Oct 43–Nov 45 |
Liberator III/V/VI/VIII Halifax II Fortress I/II/IIA Wellington XIII Oxford I/II Hurricane IIC Martinet I |
RAF Aldergrove various bases in Northern Ireland RAF Lossiemouth |
|
1675 HCU |
Oct 43–Aug 44 Aug 44–Oct 45 |
Liberator II Harvard IIA Hurricane IIB Argus II |
RAF Lydda RAF Abu Sueir |
Formed by re-designating 5 Heavy Bomber Conversion Unit, Lydda |
1678 HCU |
Sep 43–Jun 44 |
Lancaster II |
RAF Foulsham RAF Waterbeach |
|
1699 (BS)CU 1699 HCU |
Oct 44–Jun 45 |
Fortress II/III Liberator VI Lancastrian II |
RAF Oulton RAF Full Sutton |
Became the Lancastrian Flight of No. 231 Squadron RAF |
All-Weather OCU |
?–? |
Anson T.21 Vampire T.11 Meteor T.7/F.8/NF.12/NF.14 |
nomadic |
|
Argosy CU |
Nov 61–Apr 63 |
Argosy C.1 |
RAF Benson |
Became the Argosy Flight of 242 OCU |
Belvedere CU |
Aug 64–Aug 68 |
Belvedere HC.1 |
RAF Odiham |
Absorbed by the Short-Range Conversion Unit |
Short-Range CU |
Aug 64–Jul 67 |
Twin Pioneer CC.2 Wessex HC.2 Auster AOP.9 |
RAF Odiham |
Became the Helicopter Operational Conversion Flight |
Jaguar OCU |
Jun 74–Sep 74 |
Jaguar GR.1/T.2 |
RAF Lossiemouth |
Formed from Jaguar Conversion Team. Became 226 OCU |
5 Heavy Bomber Conversion Unit |
?–? |
Liberator |
RAF Lydda, RCAF Boundary Bay and RCAF Abbotsford] |
Became 1675 HCU
In April 1944 RCAF Boundary Bay BCATP No. 5 Operational Training Unit (for Heavy Conversion) established when Seventeen B-24 Liberators were scheduled to arrive fresh from American factories that first month. However, only sixteen would actually be delivered. By Sept 30th 1944 RCAF 5 O.T.U. reported B-24 Liberators; Abbotsford 24, Boundary Bay 14, total 38. B-25 Mitchells; Boundary Bay only total 35. Bolingbrokes; Boundary Bay only total 5. P-40 Kittyhawks; Boundary Bay only 8. Norseman; Boundary Bay only 1. Total aircraft on Unit strength 87 |
Heavy Bomber Conversion Unit, Salbani |
Sep 42–Jul 43 |
Liberator III |
RAF Salbani |
Became 1584 HCU |
Heavy Glider Conversion Unit |
Jul 42–Oct 44 |
Whitley V Albemarle I/GT.I/ST.II/ST.V Horsa I/II Oxford I/II Tiger Moth II Miles Magister |
RAF Shrewton RAF Brize Norton |
Became No. 21 Heavy Glider Conversion Unit RAF |
21 HGCU |
Oct 44–Dec 47 |
Whitley V Albemarle GT.VI Horsa I/II Oxford I Tiger Moth I Miles Magister Hotspur II/III Hadrian I Stirling IV Halifax III/VII Master II
|
RAF Brize Norton RAF North Luffenham |
Formed by re-designation of the Heavy Glider Conversion Unit |
22 HGCU |
Oct 44–Dec 47 |
Albemarle GT.I/ST.II/ST.V/GT.VI Horsa I/II Oxford I Hadrian I |
RAF Keevil RAF Blakehill Farm |
Formed by re-designation of an element of the Heavy Glider Conversion Unit |
23 HGCU |
Oct 44–Dec 45 |
Albemarle GT.I/ST.V/ST.VI Horsa I/II Oxford I Hadrian I Proctor III |
RAF Peplow |
Formed by elements of No. 83 OTU the Heavy Glider Conversion Unit |