List of Air Ministry specifications
1930–1939
Table:
Spec

OR

Type

Designs

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 (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 Wellington(renamed from '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)

1/34

Two-seat Army Co-operation Fighter Bomber for the Royal Australian Air Force[35]

Hawker Demon

2/34

High-altitude research aircraft capable of reaching 50,000 ft

Bristol Type 138A

B.3/34

OR.12

Heavy bomber landplane,[35] twin-engine night bomber & bomber/transport – Virginia, Heyford & Hendon replacement – transport requirement later removed after protests from manufacturers

Armstrong Whitworth Whitley, Bristol Type 144

P.4/34

OR.13

Light day bomber for tactical support[35]

Fairey P.4/34, Hawker Henley

F.5/34

OR.15

Single-seat fighter[35] (although contracts were placed for prototypes with three companies none were ordered into production)[35]

Bristol Type 146, Martin-Baker M.B.2, Vickers Type 279 Venom, Gloster F.5/34

6/34

Single-engine biplane amphibian for Australia.[35]

Supermarine Seagull V

G.7/34

Two-seat general purpose light bomber,[35] Interim Hart day bomber replacement

Hawker Hind

8/34

Two-seat interceptor fighter[35] (production of Demon I for the RAF[35])

Hawker Demon

9/34

Two-seat day bomber and army co-operation aircraft[35] (production of Hawker Audax[35])

Hawker Audax

10/34

Hawker Hart communications aircraft (two aircraft delivered to No. 24 Squadron RAF[35])

Hawker Hart

11/34

Torpedo spotter reconnaissance aircraft development[35] (One Fairey Seal fitted with an Armstrong Siddeley Panther VI engine[35])

Fairey Seal

12/34

Torpedo spotter reconnaissance aircraft development[35] (production of 16 Sharks for use by No. 820 Squadron RAF[35])

Blackburn Shark

13/34

Bulldog trainer production[35] (production of Bulldog TM Type 124[35])

Bristol Bulldog

R.14/34

Singapore III production order[35]

Short Singapore III

15/34

Three-seat torpedo bomber[35] (production of Mk III[35])

Vickers Vildebeest

16/34

Three-seat general purpose aircraft - Vincent I production order including conversion of outstanding Vildebeests to Vincents

Vickers Vincent I

17/34

Torpedo bomber[35] (additional Baffin T.8A aircraft for conversion training, three built[35])

Blackburn Baffin

18/34

Single-engine day bomber[35] (Hawker Hart IB production[35])

Hawker Hart

19/34

Two-seat Army co-operation aircraft[35] (production of Audax Is for use in India, 50 aircraft built[35]

Hawker Audax

B.20/34

Twin-engine night bomber - Hendon production order to this spec - see also B.19/27

Fairey Hendon

21/34

Two-seat fleet spotter reconnaissance aircraft[35] (Osprey III production[35])

Hawker Osprey

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

25/34

Amphibian trainer[35] (production of three Clouds[35])

Saro Cloud

26/34

Float seaplane trainer[35] (production of 16 Tutors for the Seaplane Training School[35])

Avro Type 646 Sea Tutor

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

29/34

Hawker Fury for the South African Air Force[35]

Hawker Fury

30/34

Twin-engined troop and cargo transport – Valentia I production order

Vickers Valentia I

31/34

Armoured day bomber (development of armoured crew protection for the Hart[35])

Hawker Hart

32/34

Navigation trainer - Prefect production order

Avro 626/Prefect

F.36/34

OR.16

High Speed Monoplane Single Seater Fighter (based on the Hawker submission to F.5/34)[35]

Hawker Hurricane

F.37/34

High Speed Monoplane Single Seater Fighter (based on the private venture Supermarine Type 300 submission)[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 250 mph cruise, 1500 mile range, 4000 lb bomb load[36]

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[note 1]

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.[citation needed]

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[37]

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)[37]

B.18/38

Twin-engine medium bomber of mixed wood/metal construction

Armstrong Whitworth Albemarle[37]

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[38]

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 × 0.303 machine guns

Gloster E.28/39

Taking into account the tabular data covering the '1930–1939' part of 'List of Air Ministry specifications', write a one-sentence description of the highlighted cells and provide it inside the JSON object {"answer": "YOUR ANSWER"}.