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–May 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 |