1930-1939
Spec. | OR | Type | Designs (accepted and tendered) |
M.1/30 | Torpedo bomber - Spec. supersedes M5/28 (q.v.) | Blackburn M.1/30, Handley Page H.P.46, Vickers Type 207 | |
2/30 | Dual control conversion set issued to Blackburn but then cancelled | ||
3/30 | Basic trainer - Avro 504N replacement | Avro Type 621 Trainer | |
5/30 | Mail carrier | Vickers Type 166 Vellore II | |
6/30 | ab initio trainer - Lynx-Avro (Avro 504N) production order | Avro 504N | |
F.7/30 | Fighter capable of at least 250 mph and armed with four machine guns | Blackburn F.3, Bristol Type 123, Bristol Type 133, Gloster Gladiator, Gloster SS.19, Hawker P.V.3, Supermarine Type 224, Westland F.7/30 | |
8/30 | ab initio trainer - Moth with Gypsy II order | de Havilland Moth | |
S.9/30 | Two-seat carrier-borne torpedo bomber/three-seat spotter-reconnaissance aircraft | Fairey T.S.R.I, Gloster FS.36 ;see also S.15/33 | |
16/30 | Naval fighter - written for Nimrod | Hawker Nimrod | |
18/30 | Fairey IIIF replacement | Fairey Gordon I | |
19/30 | Naval fighter/reconnaissance with folding wings and interchangeable wheel/float U/C | Hawker Osprey | |
G.4/31 | General-purpose/torpedo bomber - Wapiti & Gordon replacement - Wellesley one of two designs submitted by Vickers and itself a PV - see also G.22/35 | Blackburn B-7, Bristol Type 120, Fairey G.4/31, Handley Page H.P.47, Hawker P.V.4, Parnall G.4/31, Vickers G.4/31, Vickers Wellesley, Westland PV-7 | |
5/31 | Long-range bomber - Virginia production order | Vickers Virginia | |
13/31 | ab initio trainer with complete freedom for parachute escape by both occupants - D.H.60T accepted with modifications, becoming D.H.82 - see also T.23/31 (Note: some sources give 13/31 as an order for the Ripon IIC) | Avro Type 631 Cadet, de Havilland D.H. 60T Tiger Moth | |
18/31 | Basic trainer - Avro Type 621 Trainer with Lynx engine | Avro Tutor | |
R.19/31 | Three-engined long-range reconnaissance flying boat - Rangoon three-aircraft production order | Short Rangoon | |
R.20/31 | Twin-engined flying boat - all-metal Kestrel-engined Southampton II (Southampton IV/Scapa) | Supermarine Scapa | |
T.23/31 | Tiger Moth I production order | de Havilland Tiger Moth I | |
R.24/31 | General Purpose Open Sea Patrol Flying Boat | Saunders Roe London, Short R.24/31 Knuckleduster, Supermarine Stranraer | |
C.26/31 | OR.4 | Bomber-transport - Valentia replacement | Armstrong Whitworth A.W.23, Bristol Bombay, Handley Page H.P.51. Vickers Type 230 - (not built) |
B.9/32 | OR.5 | Twin-engine medium day bomber with appreciably higher performance than predecessors - later revised to specify Goshawk power and subsequently re-revised with Goshawk requirement dropped | Vickers Crecy, Handley Page Hampden, Bristol Type 131 |
S.11/32 | Naval catapult observation/spotting seaplane for carriage on cruisers | Fairey Seafox | |
T.12/32 | Trainer | Bristol Type 124 | |
19/32 | Conversion of Westland Wapiti into Westland Wallace standard | Westland Wallace | |
20/32 | Three-engined long-range reconnaissance flying boat - improved Iris with Buzzard engines | Blackburn Perth | |
25/32 | Basic trainer - revised-Tutor production order | Avro Tutor I | |
B.23/32 | Twin-engine medium bomber - written for Heyford I & IA production order | Handley Page Heyford Mk. I/IA | |
P.27/32 | Light day bomber - Hart/Hind replacement - see P.23/35 | Armstrong Whitworth A.W.29, Fairey Battle, Gloster P.27/32, Bristol Type 136 | |
R.1/33 | Patrol/reconnaissance flying boat | Westland-Hill Pterodactyl Mk.VII | |
R.2/33 | Long-range patrol/reconnaissance flying boat | Short Sunderland, Saro A.33 | |
R.3/33 | Long-range patrol/reconnaissance flying boat - trials order for Singapore III | Short Singapore III | |
F.5/33 | Twin-engine two-seat turret fighter - later cancelled | Armstrong Whitworth A.W.34, Boulton Paul P.76, Bristol Type 140, Gloster F.5/33, Parnall F.5/33, Westland-Hill Pterodactyl Mk.V | |
T.6/33 | Tiger Moth floatplane two aircraft evaluation order | de Havilland Tiger Moth | |
13/33 | 4-engined mail seaplane and 4-engine flying boat carrier - Short-Mayo Composite | Short S.20 Mercury, Short S.21 Maia | |
14/33 | Fairey Gordon II production order | Fairey Gordon II | |
S.15/33 | Naval carrier-borne torpedo bomber/spotter/reconnaissance (TSR) - Fairey 9/30 (q.v.) design modified and re-submitted as T.S.R.II - Spec. replaces S.9/30 & M.1/30 (q.v.) | Blackburn Shark, Fairey Swordfish, Gloster TSR.38 | |
18/33 | Radio-controlled Fleet gunnery target aircraft | de Havilland Queen Bee | |
21/33 | Three-seat general purpose/Army co-operation aircraft - Fairey IIIF/Wapiti replacement - improved Vildebeest | Vickers Vincent | |
F.22/33 | Fighter | Bristol Type 141 | |
G.23/33 | General purpose aeroplane - Hart for Middle East | Hawker Hardy | |
24/33 | Gloster Gauntlet production order | Gloster Gauntlet | |
25/33 | Twin-engined troop and cargo transport - improved Victoria | Vickers Valentia | |
T.26/33 | Tiger Moth II production order | de Havilland Tiger Moth II | |
B.29/33 | Twin engine medium day bomber with power-operated nose turret | Boulton Paul Sidestrand V (Overstrand) | |
2/34 | High-altitude research aircraft capable of reaching 50,000 ft | Bristol Type 138A | |
B.3/34 | Twin-engine night bomber & bomber/transport - Virginia, Heyford & Hendon replacement - transport requirement later removed after protests from manufacturers | Armstrong Whitworth Whitley, Handley Page Harrow, Bristol Type 144 | |
P.4/34 | Light bomber and close air support aircraft | Fairey P.4/34, Hawker Henley | |
F.5/34 | High-performance fighter with air-cooled engine for overseas (hot climate) use | Bristol Type 146, Gloster G.38, Martin-Baker M.B.2, Vickers Type 279 Venom | |
G.7/34 | Interim Hart day bomber replacement | Hawker Hind | |
R.14/34 | Written for Singapore III production order | Short Singapore III | |
16/34 | Three-seat general purpose aircraft - Vincent I production order including conversion of outstanding Vildebeests to Vincents | Vickers Vincent I | |
B.20/34 | Twin-engine night bomber - Hendon production order to this spec - see also B.19/27 | Fairey Hendon | |
22/34 | Close-support aircraft - Audax for SAAF | Hawker Hartebees | |
B.23/34 | Twin engine medium day bomber - Overstrand production order | Boulton Paul Overstrand | |
24/34 | Basic trainer - production order for second batch of definitive Tutor design - see 3/30, 18/31 & 25/32 | Avro Tutor I | |
O.27/34 | Naval dive bomber | Blackburn Skua | |
B.28/34 | Twin-engine medium bomber - written for Heyford II production order | Handley Page Heyford Mk. II | |
30/34 | Twin-engined troop and cargo transport - Valentia I production order | Vickers Valentia I | |
32/34 | Navigation trainer - Prefect production order | Avro 626/Prefect | |
F.36/34 (modified by F.5/34) | Eight-gun fighter with Rolls-Royce PV-12 engine | Supermarine Spitfire, Hawker Hurricane | |
F.37/34 | Eight-gun fighter with Rolls-Royce PV-12 engine capable of 350 mph - see also F.36/34 & F.10/35 | Supermarine Spitfire | |
S.38/34 | Written for Swordfish production order | Fairey Swordfish I | |
A.39/34 | Two-seat Army co-operation aeroplane | Bristol Type 148, Westland Lysander | |
B.1/35 | OR.19 | Twin-engine medium bomber | Airspeed A.S.29, Armstrong Whitworth A.W.39, Handley Page H.P.55, Vickers Warwick |
2/35 | Naval catapult-launched observation/spotting flying boat for carriage on cruisers | Supermarine Walrus | |
F.9/35 | Two-seat four-gun turret fighter - Demon replacement | Hawker Hotspur, Boulton Paul Defiant, Bristol Type 147 | |
F.10/35 | Drawn up for the Spitfire prototype | Supermarine Spitfire | |
13/35 | Naval torpedo-spotter-reconnaissance aircraft - written for Shark production order | Blackburn Shark | |
14/35 | Army Co-operation aircraft - Audax replacement | Hawker Hector | |
F.14/35 | Written for Gladiator I initial production order | Gloster Gladiator I | |
M.15/35 | Land-based general reconnaissance/torpedo-bomber | Blackburn Botha, Bristol Beaufort | |
16/35 | Autogyro - written for Cierva C.30/Avro 671 Rota evaluation order | Avro Rota | |
18/35 | Twin-engined coastal reconnaissance landplane - written for Anson | Avro Anson | |
20/35 | Radio-controlled Fleet gunnery target aircraft - Queen Bee production order | de Havilland Queen Bee | |
B.21/35 | Twin-engine medium bomber - written for Whitley II production order | Armstrong Whitworth Whitley II | |
G.22/35 | General-purpose day and night bomber and coastal-defence torpedo-carrier - Wellesley production order - see also G.4/31 | Vickers Wellesley | |
P.23/35 | Written for Battle I production order | Fairey Battle I | |
G.24/35 | General Reconnaissance - Anson replacement | Bristol Type 149, Bristol Beaufort | |
26/35 | Naval fighter/reconnaissance - Osprey IV production order | Hawker Osprey IV | |
B.27/35 | Twin-engine medium bomber - written for Heyford III production order | Handley Page Heyford Mk. III | |
B.28/35 | Drawn up for Bristol 142M | Bristol Blenheim | |
B.29/35 | Written for Harrow initial production order | Handley Page Harrow | |
O.30/35 | Naval turret-fighter - fighter development of Skua accepted | Blackburn Roc, Boulton Paul P.85 | |
Q.32/35 | Radio-controlled Fleet Gunnery target aircraft - Queen Bee replacement | Airspeed Queen Wasp | |
F.34/35 | Twin-engined turret-armed fighter | Gloster F.34/35 | |
F.35/35 | Very high speed fighter | Airspeed A.S.31 (not built) | |
36/35 | Trans-Atlantic mail plane | de Havilland Albatross | |
F.37/35 | OR.31 | Fighter with cannon | Westland Whirlwind, Hawker Hurricane with Oerlikon cannon, Supermarine Type 313, Bristol Type 153 |
39/35 | Twin-engine communications aircraft - Envoy with dorsal turret order for SAAF | Airspeed Envoy | |
R.1/36 | OR.32 | Small reconnaissance flying boat | Saro Lerwick, Blackburn B-20 |
2/36 | Development of the Cierva C.30 (cancelled) | ||
3/36 | Development of the Avro 652A (cancelled) | ||
4/36 | Catapult bomber (cancelled) | Short S.27 | |
5/36 | OR.33 | Improved Walrus for the Fleet Air Arm | Supermarine Walrus |
T.6/36 | OR.34 | Advanced monoplane trainer mounting manually operated dorsal turret - Don accepted but proved unsuitable | de Havilland Don, Miles Kestrel |
M.7/36 | Torpedo Spotter Reconnaissance aircraft (cancelled) | Fairey Albacore | |
O.8/36 | OR.36 | Reconnaissance dive bomber for the Fleet Air Arm (cancelled) | |
S.9/36 | Three-seat spotter fighter for the Fleet Air Arm (cancelled) | Fairey S.9/36 | |
10/36 | OR.38 | Written for Beaufort production order | Bristol Beaufort I |
11/36 | OR.39 | Interim General Reconnaissance - aircraft later renamed 'Blenheim IV' and 'Bolingbroke' name transferred to Canadian-built Blenheim | Bristol Bolingbroke I |
B.12/36 | OR.40 | Four-engine heavy bomber | Armstrong Whitworth B.12/36, Short Stirling, Supermarine Type 316 |
P.13/36 | OR.41 | Twin-engined medium bomber for "world-wide use" introduction delayed due to production difficulties necessitating further order of Whitleys & Wellingtons | Avro Manchester (2 prototypes ordered), Handley Page H.P.56 (one prototype ordered), Hawker P.13/36 (project only), Vickers Warwick with Rolls-Royce Vulture engines. |
14/36 | Production specification for the Fairey Battle I | Fairey Battle (500 ordered later reduced to 311) | |
F.15/36 | Written for Hurricane redesigned for Merlin II | Hawker Hurricane I | |
17/36 | Written for Hotspur initial production order - later cancelled | Hawker Hotspur; cancelled | |
19/36 | Naval torpedo-spotter-reconnaissance aircraft - written for Shark additional production order | Blackburn Shark | |
B.20/36 | Twin-engine medium bomber - written for Whitley III production order | Armstrong Whitworth Whitley III | |
T.23/36 | Multi-role crew trainer | Airspeed Oxford | |
25/36 | Written for Skua initial production order | Blackburn Skua | |
26/36 | Written for Roc initial production order | Blackburn Roc | |
29/36 | Written for Wellington (revised Crecy from B.9/32) initial production order | Vickers Wellington I | |
B.30/36 | Written for Hampden initial production order | Handley Page Hampden I | |
33/36 | Written for Blenheim I production order (Rootes) | Bristol Blenheim I | |
36/36 | Written for Lysander initial production order | Westland Lysander I | |
37/36 | Written for Walrus additional production order | Supermarine Walrus I | |
39/36 | Written for Botha additional production order (Boulton Paul) - cancelled | Blackburn Botha | |
T.40/36 | OR.44 | Development and production of a trainer version of the Miles Hawk | Miles Magister |
S.41/36 | Three-seat torpedo/spotter-reconnaissance aircraft - Swordfish replacement | Fairey Albacore | |
42/36 | Target tug - order for Henley target tug conversions by Gloster's | Hawker Henley III | |
43/36 | Autogyro | Cierva C.40 Rota II | |
B.44/36 | Written for Dagger-Hampden (Hereford) production order | Handley Page Hereford I | |
45/36 | Written for Botha additional production order (Blackburn) - cancelled | Blackburn Botha | |
47/36 | Written for Bombay II production order | Bristol Bombay II | |
T.1/37 | Basic trainer | Heston T.1/37 Trainer, Miles M.15, Parnall Heck III, Airspeed A.S.36 (not built) | |
2/37 | Written for Blenheim I production order (Avro) | Bristol Blenheim I | |
6/37 | Twin-engine VIP transport aircraft - order for The King's Flight | Airspeed Envoy | |
Q.8/37 | Radio-controlled Fleet Gunnery target aircraft - Queen Bee replacement - role subsequently carried-on by Queen Wasp - see Q.32/35 | Airspeed A.S.37 (not built) | |
F.9/37 | OR.49 | Twin-engine day/night fighter | Gloster G.39 |
F.11/37 | Twin-engine two-seat day & night fighter/ground support | Boulton Paul P.92 | |
F.18/37 | Heavily armed interceptor armed with 12 x 0.303 mgs and capable of at least 400 mph | Bristol F.18/37, Gloster F.18/37, Hawker Tornado, Hawker Typhoon, Supermarine Type 324, Supermarine Type 325 | |
19/37 | Written for Manchester I production order | Avro Manchester I | |
20/37 | Written for Roc floatplane production order | Blackburn Roc | |
S.23/37 | OR.52 | Four-engine carrier-based Fleet shadower/follower - low-speed, high-endurance, ship-tracking aircraft - requirement later rendered obsolete due to introduction of radar | Airspeed AS.39, General Aircraft GAL.38 |
S.24/37 | OR.53 | Naval torpedo/dive-bomber, reconnaissance - Supermarine entry featured variable-incidence wing | Supermarine S.24/37, Fairey Barracuda |
32/37 | Written for Halifax initial production order | Handley Page Halifax I Srs 1 - I Srs 3 | |
B.32/37 | OR.44 | Production contract for a four-engine version of the P.13/36 H.P.56 design | Handley Page H.P.57 Halifax |
37/37 | Magister I production order | Miles Magister I | |
38/37 | Three-seat communications aircraft & instrument/wireless trainer | Miles Mentor | |
T.39/37 | Three-seat communications aircraft & instrument/wireless trainer | Airspeed AS.42 Oxford for the Royal New Zealand Air Force | |
42/37 | Specification for wooden mockup of Miles X2 large transport aeroplane - not built - lead to Miles M.30X Minor scale testbed | Miles M.30X Minor | |
43/37 | Engine testbed | Folland Fo.108; designs also tendered by General Aircraft & Percival | |
S.7/38 | Naval catapult-launched observation/spotting flying boat - Walrus replacement | Supermarine Sea Otter | |
O.8/38 | Naval carrier-borne fighter/observation - winner developed from Fairey's earlier P.4/34 entry | Fairey Fulmar | |
B.9/38 | Twin-engine medium bomber of simple construction using materials other than light alloy wherever possible | see B.17/38 and B.18/38 | |
14/38 | Long-range pressurised high-altitude monoplane transport/airliner (Shorts) - 3 prototypes ordered, construction started - cancelled | Short S.32 | |
15/38 | Short/Medium-range monoplane transport/airliner (Fairey) - Fairey FC.1, 14-aircraft production order - cancelled | Fairey FC1, General Aircraft GAL.40 | |
16/38 | Trainer - Master I production order | Miles Master T.Mk.I | |
B.17/38 | Twin-engine medium bomber of mixed wood/metal construction | Bristol Type 155 (cancelled by Bristol) | |
B.18/38 | Twin-engine medium bomber of mixed wood/metal construction | Armstrong Whitworth Albemarle | |
B.19/38 | Bomber with 8,000 lb load and eight 20mm cannon in two turrets - revised to become B.1/39 | Bristol Type 157 | |
20/38 | Communications aircraft - Vega Gull order | Percival Vega Gull | |
21/38 | Communications aircraft - Dominie production order | de Havilland Dominie | |
S.22/38 | Naval helicopter | Cierva C.41 Gyrodyne | |
24/38 | Twin-engine communications aircraft - Envoy production order | Airspeed Envoy | |
25/38 | Twin-engine communications aircraft | Percival Petrel | |
26/38 | OR.65 | Three-seat wireless or navigation training aircraft with dual controls - Vega Gull adapted for communications training | Percival Proctor I |
28/38 | OR.66 | Two-seat helicopter - written for Weir W.6 | Weir W.6 |
T.29/38 | Twin-engine R/T (Radio Telephony) training aircraft - Dominie three aircraft order | de Havilland Dominie | |
B.1/39 | "Ideal Bomber" Four-engined heavy bomber with 9,000 lb bomb load and 20mm cannon defence (revised B.19/38) - work suspended June 1940 | Handley Page H.P.60, Bristol Type 159 | |
T.4/39 | OR.68 | Single-engined trainer | Airspeed Cambridge - (two prototypes ordered, no production contract) |
R.5/39 | Long-range patrol flying boat - Sunderland replacement - superseded by R.14/40 (q.v.) | Saunders-Roe S.38 - later cancelled | |
N.8/39 | Naval two-seat carrier-borne fighter - Roc replacement - replaced by N.5/40 | see N.5/40 | |
N.9/39 | Naval two-seat carrier-borne fighter - Fulmar replacement - replaced by N.5/40 | see N.5/40 | |
F.17/39 | Long-range fighter development of Bristol Beaufort - written for Beaufighter | Bristol Beaufighter | |
F.18/39 | Fighter - Hurricane/Spitfire replacement | Martin-Baker M.B.3, Martin-Baker M.B.5 | |
19/39 | Twin-engine transport aircraft - order for Hertfordshire later cancelled | de Havilland Hertfordshire | |
20/39 | Twin-engine communications aircraft - order for No. XXIV Squadron RAF | de Havilland Flamingo | |
21/39 | Twin-engine VIP transport aircraft - order for The King's Flight | de Havilland Flamingo | |
F.22/39 | OR.76 | Fighter fitted with heavy-calibre nose-mounted gun | Vickers 414 Vickers Type 432 - also tests with Vickers Type 439 testbed - specification later cancelled |
B.23/39 | Very high altitude version of Wellington capable of operating at 40,000 ft | Vickers Wellington V | |
E.28/39 | Experimental aircraft using Whittle jet-propulsion with provision for 4 x 0.303 machine guns | Gloster E.28/39 |
Read more about this topic: List Of Air Ministry Specifications, List of Specifications (incomplete)