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Boulton Paul

BP_logo.jpg    Boulton & Paul Ltd
   Boulton Paul Aircraft Ltd


History

The company's origins date back to an ironmonger's shop founded in 1797 in Norwich by William Moore. William Staples Boulton joined the ironworks firm of Moore & Barnard in 1844. By 1870 Boulton had been elevated to a partner alongside of John Barnard and the firm was renamed to Barnard & Boulton. A later partner in the firm was Joseph Paul, and the firm was again renamed to Boulton & Paul Ltd, which started its construction engineering division in 1900. By the early 1900s, Boulton & Paul Ltd had become a successful general manufacturing firm. In 1915, Boulton & Paul began to construct aircraft to support the war effort. Their first product was the Royal Aircraft Factory FE.2b, contracts for which finally numbered 250. A new production site was built and an assembly and proving ground developed on Mousehold Heath in Norwich rather than transport the aircraft to the Army at Thetford. The aircraft were built in conjunction with another Norwich company, the coach building works of Howe and Sons at Chapel Field. Success with the FE.2b led to further contracts; 300 FE.2d (with nacelles built by Garrett & Sons Ltd of Leiston), 70 Felixtowe F.3 flying boat hulls and most significantly the Sopwith Camel, of which the company built more than any other manufacturer. Success as a builder of aircraft led to the company forming a design department. John D. North, who had been with the Austin Motor Co as superintendent of their aeroplane division, was engaged as chief designer, and he at once set to work on producing military aircraft. None of these resulting aircraft made a significant impact while the war lasted; the P.3 Bobolink was overshadowed by the Sopwith Snipe, the P.6, one of the first aircraft to be designed for aerodynamic research, was a handy two seater biplane which, after the war it became the company's own transport and the Armistice beat the P.7 Bourges into production. Although not succeeding with its own P.3, the company was well compensated with orders for 500 of the rival Sopwith Snipe, deliveries continuing through October 1919 before the final 25 were cancelled.

After the war came first the P.8 Atlantic and then the P.9, which was developed as a private light aircraft. Few orders were received because of the large number of cheap war surplus aircraft that were on the market at the time. J.D. North was a strong proponent of all metal structures and the next model, the all-steel P.10 biplane, created a lot of interest, so much so that North managed to convince the company that there was where the future lay. Boulton and Paul soon became acknowledged leaders in the field, and this led to an order in 1925 for the design and construction of the R.101 airship. That same year Malcolm Campbell pushed the land speed record to 150.87m.p.h. in a Sunbeam car. Prior to the record attempt, Sunbeam sent a model of the car to Boulton Paul for tests in their wind tunnel. After a series of tests Boulton Paul redesigned the car to improve its aerodynamic performance.

The company's first significant aircraft to go into production was the Sidestrand bomber, 18 of which were ordered. The agile twin engined aircraft first flew in 1926, could loop, spin and roll and had a top speed of 140mph. The aircraft entered service in 1929 equiping No.101 squadron. 1929 also saw W.H. Sayers join the company, whose first job was the design of the P.41 Phoenix light sports aircraft. Today it is unclear whether Sayers, with his experience in light aircraft, joined to assist in the Phoenix design, or whether the aircraft was a result of his joining Boulton & Paul.

The high speed Sidestrand made John North realise that the nose gunner needed some protection. As a result he designed a fully enclosed, power operated gun turret containing a single Lewis gun, powered by compressed air bottles, and a compressor driven from one of the engines. This was fitted to the Overstrand which became the last of the company's designs to be built at Norwich.

In a depressed market in 1934, the aircraft division being its weakest, Boulton & Paul Ltd sold its aircraft manufacturing component from the main construction business to a London financial group, Electric and General Industries Trust Ltd, creating a new public company, Boulton Paul Aircraft Ltd. North, along with Sam Hiscocks, who joined the company from Armstrong Whitworth, were joint managing directors. This moved to Pendeford, Wolverhampton, in 1936 as the area had a surplus of skilled labour and the council was able to provide an incentive in the form of a greenfield site and flying rights. Most of the 800 strong workforce moved to Wolverhampton but further skilled labour was required. A number of people were recruited from Ulster and Scotland, and a training school was set up at Cannock. Once again, subcontract work came to Boulton Pauls rescue with an order, eventually numbering 106, for the Hawker Demon.

French engineer De Boysson of the Société d’Applications des Machines Motrice (SAMM) had developed a 4 gun electro-hydraulic turret. John North saw its potential and superiority over his own design and the company brought the manufacturing rights. This formed the basis for much of the company's future. The turret was an immediate success and over the years a whole range of gun turrets were designed and fitted to many of the most successful aircraft of the day.

The factory was extended in 1937, eventually covering three times the area of the original Pendeford works and in March of the same year the company received an order for 87 Defiants, the first flight of which took place on 11th August. The Defiant fighter was Boulton Paul's first aircraft incorporating an all metal stressed skin and was fitted with the company’s Type 'A' Mk.IID turret.

The Royal Navy put out tenders for a turret equipped fighter. The contract went to Blackburn for its Roc aircraft. Blackburn had a lot of orders at the time for other aircraft, and so Boulton Paul was subcontracted to manufacture the aircraft, which was basically a Blackburn Skua dive-bomber fitted with Boulton Paul type 'A' turret. Boulton Paul did all of the redesign work, and the first aircraft flew on 23rd December 1938.

The Defiant was followed by the subcontract construction of the Fairey Barracuda and following the end of the war 270 Vickers Wellington bombers were converted to T.10 navigation trainers. The Balliol T1 and T.2 advanced trainers were built for the RAF in reasonable numbers, and there was an overseas order from the Royal Ceylon Air Force.

The company carried out a lot of modification work on the English Electric Canberra's. They were the main Canberra contractor and continued this work for 14 years. The company became a world leader in the production of aircraft power control units and fly by wire systems. The electronics department designed and built a computer called 'The Brain' in the early 1950's. A lot of work was carried out on Vampires for de Havilland, and Boulton Paul became a subcontractor for Beagle Aircraft. The company built the wings and undertook structural testing of the fuselage. The last two Boulton Paul aircraft to fly were the P.111 and P.120 delta wing jets.

In 1961 Boulton Paul Aircraft, by now a producer of aircraft equipment rather than complete aircraft, merged with the Dowty Group to form first Dowty Boulton Paul Ltd and then Dowty Aerospace.

Company References
  1. Boulton & Paul Aircraft, Gordon Kinsey (Terence Dalton, 1992)
  2. Boulton Paul Aircraft Since 1915, Alec Brew (Putnam, 1993)
  3. Boulton Paul Aircraft, Alec Brew (Tempus, 2001)
  4. http://www.historywebsite.co.uk/Museum/Transport/planes/boultonPaul.htm
  5. Aeromilitaria, 1995/3 (Air-Britain Publications)
  6. Air Enthusiast Quarterly 108
  7. Flight Magazine 8 July 1955
  8. The History of Black Country Aviation, Alec Brew (Alan Sutton, 1993)




Project Data top

Boulton and Paul Ltd.
Project No Type No Name Alternative Name(s) Year Spec Status Qty Description References
   P.1          Proj  0  1S, 1E fighter  (1)
   P.2          Proj  0  1S, 1E fighter  (1)
   P.3  Bobolink    1917  A.1A  Proto  1  1S, 1E fighter  1,2,3,4,6,11,34,39
   P.4      1917    Proj  0  1S, 1E fighter  (1)
   P.5    Hawk  1917  A.1A  Proj  0  1S, 1E fighter  (1),6
   P.6      1918    Proto  1  2S, 1E experimental biplane  1,2,3,6,7,22,30
   P.7  Bourges    1918  see prdn list  Proto  3  3S, 2E reconnaissance bomber  1,2,3,5,6,7,12
   P.8  Atlantic    1919    Proto  2  3S, 2E transatlantic aircraft  1,2,3,23,23,329,330
   P.9      1919    Prdn  8  2S, 1E light biplane  1,2,3,7,22,319,320,321
   P.10      1919    Pro(n)  1  2S, 1E light biplane  1,2,3
   P.11      1919  RAF Type XXI  Proj  0  2S, 1E amphibian fleet reconnaissance aircraft  2
   P.12  Bodmin  Bodeigre  1920  see prdn list  Proto  2  2E postal aircraft  1,2,3,30
   P.13  Not Used              
   P.14      1922    Proj  0  Biplane??  (1)
   P.15  Bolton    1922  4/20  Proto  1  3S, 2E reconnaissance bomber  1,2,3,5,12
   P.16      1920  5/20  Proj  0  Troop carrier  (1)
   P.17      1920    Proj  0  2S, 1E fleet spotter  (1)
   P.18      1921    Proj  0  Reconnaissance aircraft  (1)
   P.19      1921  15/21  Proj  0  2E bomber  (1)
   P.20      1921  5/21?, 10/21  Proj  0  3S, 1E army co-operation aircraft  1
   P.21      1921    Proj  0  High altitude photo-reconnaissance aircraft  (1)
   P.22      1921    Proj  0  Coastal torpedo aircraft  (1)
   P.23          Proj  0  Amphibian  (1)
   P.24  Unknown              
   P.25  Bugle    1923  see prdn list  Prdn  7  3S, 2E medium bomber  1,2,3,5,12
   P.26  Unknown              
   P.27          Proj  0  3S, 2E medium bomber  (1)
   P.28      1923  10/23  Proj  0  1E day bomber  (1)
   P.29  Sidestrand    1924  B.9/24, B.10/29  Prdn  20  3S, 2E day bomber  1,2,3,5,9,12,303,306,307,308,351
   P.30          Proj  0  1S, 1E fighter  (1)
   P.31  Bittern    1924  27/24  Proto  2  1S, 2E night fighter  1,2,4,11
   P.32      1927  B.22/27  Proto  1  5/6S, 3E long range night bomber  1,2,3,5,12,300
   P.33  Partridge    1926  F.9/26  Proto  1  1S, 1E fighter  1,2,3,4,11,309
   P.34      1926  N.21/26  Proj  0  1S, 1E naval fighter  (1)
   P.35      1928  F.29/27  Proj  0  2S, 1E bomber-destroyer with C.O.W. gun  2
   P.36          Proj  0  14-seat, 3E transport derived from the P.32  8
   P.37      1929    Proj  0  2E high speed day bomber  1,816
   P.38      1928    Proj  0  3E aerial survey monoplane  (1)
   P.39          Proj  0  6E flying boat  1
   P.40      1929  C.16/28  Proj  0  3E troop carrier  (1)
   P.41  Phoenix    1929    Proto  1  1S, 1E light aircraft  1,2,3,22,37,812
   P.42      1929  6/29  Proj  0  3E civil general purpose biplane  (1)
   P.42A      1929  6/29  Proj  0  3E civil general purpose monoplane  (1)
   P.43      1929    Proj  0  4S, 3E cabin light airliiner  8
   P.44      1929    Proj  0  4S, 1E light aircraft  8
   P.45      1929    Proj  0  5S, 2E cabin light airliner  8
   P.46      1929    Proj  0  5S, 2E cabin light airliner  8
   P.47      1929    Proj  0  2E high speed mail carrier, derived from the P.37  8
   P.48      1930    Proj  0  4E airliner  8
   P.49          Proj  0  1S, 1E high speed racing aircraft  (1)
   P.50      1930    Proj  0  2S, 1E general purpose monoplane  (1)
   P.51      1930    Proj  0  6-passenger, 1E monoplane  8
   P.52          Proj  0  2E bomber  (1)
   P.53          Proj  0  1E reconnaissance seaplane  (1)
   P.54      1930    Proj  0  5-passenger, 2E cabin biplane  8
   P.55      1930  26/28  Proj  0  5S, 1E light airliner  2
   P.56          Proj  0  2E mail carrier  (1)
   P.57      1930    Proj  0  Development of P.29 for Ireland  (1)
   P.58      1930  S.9/30  Proj  0  3S, 1E (radial) equal span biplane fleet spotter  (1)
   P.58A      1930  S.9/30  Proj  0  3S, 1E (in line) equal span biplane fleet spotter  (1)
   P.58B      1930  S.9/30  Proj  0  3S, 1E sesquiplane fleet spotter  (1)
   P.59          Proj  0  3E transport  8
   P.60          Proj  0  2E photographic dev. of P.29 for Canada  (1)
   P.61          Proj  0  2E mail carrier  8
   P.62          Proj  0  2E day/torpedo bomber  27,328
   P.62A          Proj  0  2E civil transport version of P.62  (1)
   P.63          Proj  0  1S, 1E high speed interceptor  (1)
   P.64  Mail-Carrier    1931  21/28  Proto  1  3S, 2E mail carrier  1,2,3,23,32,302,349,815
   P.65      1931    Proj  0  Cargo floatplane derivative of P.64  (1)
   P.66      1931  G.4/31 (OR.2)  Proj  0  2S, 1E general purpose monoplane  1
   P.67      1932  F.7/30 (OR.1)  Proj  0  1S, 2E fighter  1,28,344,811
   P.68          Proj  0  8-seat, 4E passenger aircraft  8
   P.69      1932  C.26/31 (OR.4)  Proj  0  2E bomber / transport  (1)
   P.70      1932  B.9/32 (OR.5)  Proj  0  3S, 2E bomber  1,328
   P.71          Proj  0  Passenger derivative of P.64  (1)
   P.71A      1932    Prdn  2  6/7 seat, 2E airliner  1,2,3,23,32,302,347,350
   P.72          Proj  0  2S, 2E fighter  (1)
   P.73      1934  P.27/32  Proj  0  1E day bomber  (1)
   P.74A      1934  F.22/33  Proj  0  3S, 2E (inline) turret fighter  18,20
   P.74B      1934  F.22/33  Proj  0  3S, 2E fighter - as P.74A with different turrets.  18,20
   P.74C      1934  F.22/33  Proj  0  3S, 2E (radial) turret fighter  18,20
   P.74D      1934  F.22/33  Proj  0  3S, 2E fighter - as P.74D with different turrets.  18,20

Boulton Paul Aircraft Ltd. top
Project No  Type No  Name  Alternative Name(s)  Year  Spec Status  Qty  Description  References
   P.75  Overstrand    1933  B.29/33, B.23/34  Prdn  24 (4)  3S, 2E day bomber  1,2,3,5,9,12,303,306,307,308,316,338,340
   P.76      1934  F.5/33 (OR.9)  Proj  0  2S, 2E fighter  20
   P.77          Proj  0  Coastal reconnaissance version of B.75  (1)
   P.78          Proj  0  2E day/night bomber  (1)
   P.79      1934  B.3/34 (OR.12)  Proj  0  4S, 2E heavy bomber  1,15,328,348
   P.80  Superstrand        Proj  0  3S, 2E day bomber  1,15,307,328,802
         1935  O.27/34 (OR.15)  Proj  0  2S, 1E dive bomber  
   P.81      1935  A.39/34 (OR.18)  Proj  0  1E army co-operation monoplane  (1),15
         1935  B.1/35  Proj  0  4S, 2E heavy bomber derivative of P.79  
   P.82  Defiant    1935  F.9/35 (OR.20)  Prdn  1062  2S, 1E turret fighter  1,2,3,4,8,9,11,15,18,20,26,27,33,35,36,40,41,43,
 44,44,45,46,47,48,49,301,310,313,324,333,334,
 335,336,337,341
   P.83      1935  M.15/35 (OR.22)  Proj  0  2E shore based torpedo bomber  15
   P.84      1935  G.24/35 (OR.25)  Proj  0  2E shore based general reconnaissance aircraft  15
   P.85      1935  O.30/35  Proj  0  2S, 1E naval turret fighter  15,49,20,331
   P.86      1935  M.15/35 (OR.22),
 G.24/35
 Proj  0  2E shore based torpedo bomber/ GR aircraft 15
   P.87          Proj  0  2E heavy bomber  (1),15
   P.88A      1936  F.37/35 (OR.31)  Proj  0  1S, 1E (radial) fighter  1,15,28,49,332,808
   P.88B      1936  F.37/35 (OR.31)  Proj  0  1S, 1E (inline) fighter  1,15,28,49,332,808
   P.89      1937  F.9/37  Proj  0  1S, 2E fighter  15
   P.90      1936  B.12/36 (OR.40)  Proj  0  4E heavy bomber  1,2,15,328,810
   P.91      1936  P.13/36 (OR.41)  Proj  0  2E heavy bomber  15
   P.92      1938  F.11/37 (OR.50)  Proj  0  3S, 2E turret fighter  1,15,17,20,49,304,803
   P.92/2          Proto  1  Half scale model of P.92; built by Heston Aircraft  1,2,17,20,49,304,322,339
   P.93          See Blackburn Roc
   P.94      1940    Proj  0  1S, 1E fighter derivative of the P.82  2,15,18,49,331,334,800
   P.95      1940  B.20/40  Proj  0  2S, 1E bomber/tactical reconnaissance aircraft  1,2,15,49
   P.96A      1940  F.18/40 (OR.95)  Proj  0  2S, 1E night fighter, Sabre-powered, no turret  1,2,15,20,49,334,813
   P.96B      1940  F.18/40 (OR.95)  Proj  0  2S, 1E night fighter, Sabre-powered, with turret  1,2,15,20,49,334,813
   P.96C      1940  F.18/40 (OR.95)  Proj  0  2S, 1E night fighter, Sabre-powered, with turret  1,2,15,20,49,334,813
   P.96D      1940  F.18/40 (OR.95)  Proj  0  2S, 1E night fighter, Centaurus powered  1,2,15,20,49,334,813
   P.97A      1940  F.18/40 (OR.95)  Proj  0  2S, 2E night fighter, no turret  1,6,15,20,49
   P.97B      1940  F.18/40 (OR.95)  Proj  0  2S, 2E night fighter, with turret  1,6,15,20,49
   P.98      1942  F.6/42  Proj  0  1E, 1S tail-first fighter bomber  15,49
   P.99      1942  F.6/42  Proj  0  1E, 1S fighter bomber  1,15,801
   P.100      1942  F.6/42  Proj  0  1E, 1S tail-first fighter bomber  1,15,38,807
   P.101      1942  F.6/42  Proj  0  1E, 1S fighter bomber  1,15
   P.102      1943    Proj  0  1S, 1E jet fighter  15,49,333
   P.103      1943  N.7/43  Proj  0  1S, 1E naval fighter  2,15,49,331,809
   P.104      1943  N.7/43  Proj  0  1S, 1E tail-first naval fighter  15,49
   P.105      1944    Proj  0  1E fighter/torpedo-bomber/recce aircraft  15,49,38
       Jet Barracuda  1944    Proj  0  Fairey Barracuda with additional jet engine mounted
 in the tail
15,333
   P.106        T.23/43 (OR.131)  Proj  0  2/3S, 1E elementary trainer  1,15,24,327
   P.107          Proj  0  2S, 1E long range escort fighter  2,15,49
   P.108  Balliol    1945  T.7/45, T.14/47
 (OR.159)
 Prdn  229  2S, 1E trainer  1,2,3,7,8,9,10,29,33,312,314,315,323,327,342,
 343,345,346,352,353
   P.109      1945  T.7/45 (OR.159)  Proj  0  2S, 1E trainer  2,327
   P.110          Proj  0  3S, 1E light aircraft  1,24
   P.111      1947  E.27/46 (OR.241)  Proto  1  1S, 1E experimental delta  1,2,3,13,14,21,30,31,42,305,311,315,814
   P.112          Proj  0  3S, 1E elementary trainer  327
         1947  E.10/47 (OR.252)  Proj  0  1S, 1E experimental tailless research aircraft  19
   P.113          Proj  0  1S, 1E transonic research aircraft  1,2,13
   P.114          Proj  0  1S, 2E transonic research aircraft  13
   P.115      1948  T.16/48 (OR.257)  Proj  0  2S, 1E trainer  
   P.116      1948  T.16/48 (OR.257)  Proj  0  2S, 1E trainer  1,327
   P.117  Wing controlled aerodyne studies      n/a  n/a    
   P.118          Proj  0  1E swept wing aircraft  13
   P.119      1951    Proj  0  2S, 1E jet powered advanced trainer  1,2,3,327,354,806
   P.120        E.27/46 (OR.241)  Proto 0  1S, 1E experimental delta  1,2.13,14,21,30,31,305,315
   P.121      1951  ER.110T  Proj  0 1S, 2E supersonic fighter  1,13,317,326
   P.122      1951  F.124T (OR.301)  Proj  0  1S, 1E rocket powered interceptor fighter  13,38
   P.123      1951 UB.109T(AST.1097)  Proj  0  Short range unmanned bomber  1,14,16
   P.124          Proj  0  2S, 1E jet powered advanced trainer  2,327,805
   P.125          Proj  0  2S, 1E jet powered version of P.108  2,327
   P.126  Thin Wing Studies        n/a  n/a    
   P.127          Proj  0  Supersonic interceptor  13
   P.128      1952  ER.134T  Proj  0  1S, 2E supersonic research aircraft  13,325
   P.129          Proj  0  1S, 3E mixed powerplant research aircraft  2,13
   P.130          Proj  0  Family of 12 fanlift VTOL studies  1,804
   P.131          Proj  0  2S, 1E jet powered advanced trainer for Australia  327
   P.132      1955  ER.166D  Proj  0  1S, 4E fanlift VTOL research aircraft  1,2,318,804
   P.133      1956    Proj  0  1S, 3E, 6 lift fan VTOL land fighter  13,14
   P.133A      1956    Proj  0  1S, 3E, 4 lift fan VTOL land fighter  13,14
   P.133B      1956    Proj  0  2S, 2E, 4 lift fan VTOL naval search/strike aircraft  13,14
   P.134      1956    Proj  0  1S, 2E, 4/6 lift fan VTOL fighter  2,13
   P.135A      1957    Proj  0  1S, 2E, 4 lift fan VTOL double-delta research aircraft  1,13,804
   P.135B      1957    Proj  0  1S, 2E, 4 lift fan VTOL delta research aircraft  1,13,804
   P.136      1957    Proj  0  1S, 2E, 6 lift engine VTOL research aircraft  1,14,817
   P.137          Proj  0  2S, 2E, 10 lift fan VTOL naval search/strike aircraft  14
   P.138          Proj  0  4E, 32 passenger VTOL airliner  (1),25
   P.139          Proj  0  1S, 2E, 3 lift fan VTOL research aircraft  (1)
   P.140      1957    Proj  0  4E, 12 lift fan 72/80 passenger VTOL airliner  1,25,38,817
   P.141      1960    Proj  0  6E, 24 lift fan 40 passenger VTOL airliner  1,25
   P.142      1958    Proj  0  6E, 8 lift fan VTOL research aircraft  (1)
   P.143          Proj  0  10E, 40 lift fan 46/52 passenger VTOL airliner  (1),25
   P.144      1959    Proj  0  6S, 2E, 4 lift fan airborne vehicle  1,817
   P.144A          Proj  0  5S, 1E airborne vehicle  (1)
   P.145          Proj  0  4E, 12 lift engine VTOL transport  1,25,817
   P.146      1960    Proj  0  3E, 18 lift engine 96 passenger VTOL airliner  1,2,25,817
   P.147  Project Prodigal    1960    Proj  0  Limited airborne capable vehicle  2
   P.148  Air transportable road vehicle            

Project References                    To show project references in a floating window

Project References      

1        Boulton Paul Aircraft Since 1915, Alec Brew (Putnam, 1993)

2        Boulton Paul Aircraft, Alec Brew (Tempus, 2001)

3        Boulton & Paul Aircraft, Gordon Kinsey (Terence Dalton Ltd, 1992)

4        The British Fighter since 1912, Peter Lewis (Putnam, 1965)

5        The British Bomber since 1914, Peter Lewis (Putnam, 1967)

6        British Aeroplanes, 1914-1918, J.M. Bruce (Putnam, 1969)

7        British Civil Aircraft since 1919 Volume 1, A.J. Jackson (Putnam, 2nd Ed., 1973)

8        British Naval Aircraft Since 1912, Owen Thetford (Putnam, 1978)

9        Aircraft of the Royal Air Force since 1918, Owen Thetford (Putnam, 1979)

10      Blackburn Aircraft since 1909, A.J. Jackson (Putnam, 1989)

11      The British Fighter Since 1912, Francis K. Mason (Putnam, 1992)

12      The British Bomber Since 1914, Francis K. Mason (Putnam, 1994)

13      British Secret Projects 1: Jet Fighters since 1950, Tony Buttler (Crecy, 2nd Ed. 2017)

14      British Secret Projects 2: Jet Bombers since 1949, Tony Buttler (Crecy, 2018)

15      British Secret Projects: Fighters and Bombers 1935-1950, Tony Buttler (Midland, 2004)

16      British Secret Projects: Hypersonics, Ramjets and Missiles, Chris Gibson and Tony Buttler (Midland, 2007)

17      British Experimental Combat Aircraft of World War II, Tony Buttler (Hikoki, 2012)

18      The Defiant File, Alec Brew (Air Britain (Historians), 1996)

19      British Aircraft Specifications File, K.J. Meekcoms and E.B. Morgan (Air-Britain Publications, 1994)

20      Turret Fighters, Alec Brew (The Crowood Press,2002)

21      British Experimental Turbojet Aircraft, Barry Jones (The Crowood Press, 2003)

22      British Light Aeroplanes 1920-1940, Arthur W.J.G. Ord-Hume (GMS Enterprises, 2000)

23      British Commercial Aircraft 1920-1940, Arthur W.J.G. Ord-Hume (GMS Enterprises, 2003)

24      British Private Aircraft 1946-1970 Volume 2, Arthur W.J.G. Ord-Hume (Mushroom Model Publications, 2013)

25      Stuck on the Drawing Board, Richard Payne (Tempus, 2004)

26      Aircraft of the Fighting Powers Vol.I, H.J. Cooper and O.G. Thetford (Harborough, 1940)

27      Aircraft of the Fighting Powers Vol.IV, H.J. Cooper and O.G. Thetford (Harborough, 1943)

28      Interceptor, James Goulding (Ian Allan, 1986)

29      British Military Training Aircraft, Ray Sturtivant (Haynes, 1987)

30      British Research and Development Aircraft, Ray Sturtivant (Haynes, 1990)

31      Combat Aircraft Prototypes since 1945, Robert Jackson (Airlife, 1985)

32      Back To The Drawing Board, Bill Gunston (Airlife 1996)

33      Merlin Power, Victor Bingham (Airlife, 1998)

34      Warplanes of the First World War: Fighters Vol.1, J.M. Bruce (McDonald, 1965)

35      Famous Fighters of the Second World War, William Green (Macdonald and Janes, 3rd Ed., 1975)

36      WWII Aircraft Fact Files - RAF Fighters Part 1, William Green and Gordon Swanborough ((McDonald and Jane's, 1978)

37      Ultralights - The Early British Classics, Richard Riding (Patrick Stephens, 1987)

38      The History of Black Country Aviation, Alec Brew (Alan Sutton, 1993)

39      British Aircraft of WWI Volume 1 - Experimental Fighters Part 1, Colin A Owers (Aeronaut Books, 2017)

40      Osprey Aircraft of the Aces Series #105 - Defiant Blenheim and Havoc Aces, Andrew Thomas (Osprey Publishing, 2012)

41      The Hamlyn Concise Guide to British Aircraft Of The WWII, David Mondey (Hamlyn, 1982)

42      X-Planes and Prototypes - From Nazi Secret Weapons To The Warplanes Of The Future, Jim Winchester (Grange Books, 2005)

43      An Illustrated Guide to Allied Fighters of World War II, Bill Gunston (Salamander, 1981)

44      Mushroom Model Magazine Special - Yellow Series 6117 - Bolton Paul Defiant, Mark Ansell (Stratus Publications, 2005)

45      Aircraft Profile #117 - Boulton-Paul Defiant, Michael J.F. Bowyer (Profile Publications)

46      Camouflage & Markings #21 - USAAF 1942-45: British Aircraft in USAAF Service, Roger A. Freeman (Ducimus Books)

47      Camouflage & Markings #8 - Boulton Paul Defiant, R.C. Jones (Ducimus Books)

48      Warpaint Series 2 #42 - Boulton Paul Defiant, Alan W Hall (Warpaint Books Ltd, 2003)

49      British Secret Projects 3: Fighters 1935-1950, Tony Buttler (Crecy, 2018)

300    Aeroplane Monthly May 1979

301    Aeroplane Monthly Apr 1986

302    Aeroplane Monthly Aug 1986

303    Aeroplane Monthly Oct 1986

304    Aeroplane Monthly Nov 1990

305    Aeroplane Monthly Feb 1993

306    Aeroplane Monthly Nov 1994

307    Aeroplane Monthly Dec 1994

308    Aeroplane Monthly Jan 1995

309    Aeroplane Monthly Sep 1996

310    Aeroplane Monthly Oct 2008

311    Aeroplane Monthly Jan 2016

312    Air Britain Aeromilitaria 1986/1 (Air-Britain Publications)

313    Air Britain Aeromilitaria 1990/4 (Air-Britain Publications)

314    Air Britain Aeromilitaria 2005/2 (Air-Britain Publications)

315    Air Britain Aeromilitaria 2005/3 (Air-Britain Publications)

316    Air Britain Aeromilitaria 2008/1 (Air-Britain Publications)

317    Air Britain Aeromilitaria 2012/1 (Air-Britain Publications)

318    Air Britain Aeromilitaria 2015/3 (Air-Britain Publications)

319    Air Britain Archive 2002/1 (Air-Britain Publications)

320    Air Britain Archive 2002/2 (Air-Britain Publications)

321    Air Britain Archive 2002/4 (Air-Britain Publications)

322    Air Britain Archive 2006/4 (Air-Britain Publications)

323    Air Britain Aviation World 2010/2 (Air-Britain Publications)

324    Air Enthusiast Quarterly No 5

325    Air Enthusiast Quarterly No 60

326    Air Enthusiast Quarterly No 69

327    Air Enthusiast Quarterly No 80

328    Air Enthusiast Quarterly No 100

329    Air Enthusiast Quarterly No 101

330    Air Enthusiast Quarterly No 102

331    Air Enthusiast Quarterly No 106

332    Air Enthusiast Quarterly No 107

333    Air Enthusiast Quarterly No 108

334    Air International Jul 1991

335    Air International Aug 1991

336    Air Pictorial Aug 1961

337    Air Pictorial Sep 1961

338    Air Pictorial Oct 1966

339    Aircraft Illustrated Oct 1973

340    Aviation News Vol 1 No 18

341    Aviation News Vol 2 No 25

342    Aviation News Vol 4 No 16

343    Aviation News Vol 10 No 9

344    Wingspan (Incorporating Planes) No 23

345    Wingspan (Incorporating Planes) No 33

346    Wingspan (Incorporating Planes) No 34

347    Wingspan (Incorporating Planes) No 53

348    21st Profile No 16

349    The Aeroplane 05 Apr 1933

350    The Aeroplane 30 Jan 1935

351    The Aeroplane 18 Sep 1935

352    The Aeroplane 24 Oct 1947

353    The Aeroplane 02 Jul 1948

354    The Aeroplane 31 Aug 1951

355    Flight May 15 1919

356    Flight Oct 30 1919

357    Flight Dec 10 1919

358    Flight Jan 1 1920

359    Flight Sep 21 1922

360    Flight Oct 5 1922

361    Flight Sep 6 1923

362    Flight Apr 23 1925

363    Flight Sep 15 1927

364    Flight Mar 29 1928

365    Flight Dec 6 1928

366    Flight Jun 17 1932

367    Flight Apr 6 1933

368    Flight Jan 31 1935

369    Flight Sep 12 1935

370    Flight Oct 22 1936

371    Flight Aug 7 1947

372    Flight Jul 1 1948

373    Flight May 26 1949

374    Flight Aug 31 1951

375    Flight 18 Oct 1954

376    Flight 17 May 1962

800     https://www.secretprojects.co.uk/forum/index.php/topic,936.0.html

801     https://www.secretprojects.co.uk/forum/index.php/topic,983.0.html

802     https://www.secretprojects.co.uk/forum/index.php/topic,3136.0.html

803     https://www.secretprojects.co.uk/forum/index.php/topic,3537.0.html

804     https://www.secretprojects.co.uk/forum/index.php/topic,3668.0.html

805     https://www.secretprojects.co.uk/forum/index.php/topic,5795.0.html

806     https://www.secretprojects.co.uk/forum/index.php/topic,8723.0.html

807     https://www.secretprojects.co.uk/forum/index.php/topic,9278.0.html

808     https://www.secretprojects.co.uk/forum/index.php/topic,11133.0.html

809     https://www.secretprojects.co.uk/forum/index.php/topic,13371.0.html

810     https://www.secretprojects.co.uk/forum/index.php/topic,16443.0.html

811     https://www.secretprojects.co.uk/forum/index.php/topic,17840.0.html

812     https://www.secretprojects.co.uk/forum/index.php/topic,18255.0.html

813     https://www.secretprojects.co.uk/forum/index.php/topic,20993.0.html

814     https://www.secretprojects.co.uk/forum/index.php/topic,25819.0.html

815     https://www.secretprojects.co.uk/forum/index.php/topic,25888.0.html

816     https://www.secretprojects.co.uk/forum/index.php/topic,25890.0.html

817     https://www.secretprojects.co.uk/forum/index.php/topic,28771.0.html

Books & Booklets
 
1.Boulton Paul Aircraft Since 1915, Alec Brew (Putnam, 1993)
2.Boulton Paul Aircraft, Alec Brew (Tempus, 2001)
3.Boulton & Paul Aircraft, Gordon Kinsey (Terence Dalton Ltd, 1992)
4.The British Fighter since 1912, Peter Lewis (Putnam, 1965)
5.The British Bomber since 1914, Peter Lewis (Putnam, 1967)
6.British Aeroplanes, 1914-1918, J.M. Bruce (Putnam, 1969)
7.British Civil Aircraft since 1919 Volume 1, A.J. Jackson (Putnam, 2nd Ed., 1973)
8.British Naval Aircraft Since 1912, Owen Thetford (Putnam, 1978)
9.Aircraft of the Royal Air Force since 1918, Owen Thetford (Putnam, 1979)
10.Blackburn Aircraft since 1909, A.J. Jackson (Putnam, 1989)
11.The British Fighter Since 1912, Francis K. Mason (Putnam, 1992)
12.The British Bomber Since 1914, Francis K. Mason (Putnam, 1994)
13.British Secret Projects 1: Jet Fighters since 1950, Tony Buttler (Crecy, 2nd Ed. 2017)
14.British Secret Projects 2: Jet Bombers since 1949, Tony Buttler (Crecy, 2018)
15.British Secret Projects: Fighters and Bombers 1935-1950, Tony Buttler (Midland, 2004)
16.British Secret Projects: Hypersonics, Ramjets and Missiles, Chris Gibson and Tony Buttler (Midland, 2007)
17.British Experimental Combat Aircraft of World War II, Tony Buttler (Hikoki, 2012)
18.The Defiant File, Alec Brew (Air Britain (Historians), 1996)
19.British Aircraft Specifications File, K.J. Meekcoms and E.B. Morgan (Air-Britain Publications, 1994)
20.Turret Fighters, Alec Brew (The Crowood Press,2002)
21.British Experimental Turbojet Aircraft, Barry Jones (The Crowood Press, 2003)
22.British Light Aeroplanes 1920-1940, Arthur W.J.G. Ord-Hume (GMS Enterprises, 2000)
23.British Commercial Aircraft 1920-1940, Arthur W.J.G. Ord-Hume (GMS Enterprises, 2003)
24.British Private Aircraft 1946-1970  Volume 2, Arthur W.J.G. Ord-Hume (Mushroom Model Publications, 2013)
25.Stuck on the Drawing Board, Richard Payne (Tempus, 2004)
26.Aircraft of the Fighting PowersVol.I, H.J. Cooper and O.G. Thetford (Harborough, 1940)
27.Aircraft of the Fighting PowersVol.IV, H.J. Cooper and O.G. Thetford (Harborough, 1943)
28.Interceptor, James Goulding (Ian Allan, 1986)
29.British Military Training Aircraft, Ray Sturtivant (Haynes, 1987)
30.British Research and Development Aircraft, Ray Sturtivant (Haynes, 1990)
31.Combat Aircraft Prototypes since 1945, Robert Jackson (Airlife, 1985)
32.Back To The Drawing Board, Bill Gunston (Airlife 1996)
33.Merlin Power, Victor Bingham (Airlife, 1998)
34.Warplanes of the First World War: Fighters, Vol.1, J.M. Bruce (McDonald, 1965)
35.Famous Fighters of the Second World War, William Green (Macdonald and Janes, 3rd Ed., 1975)
36.WWII Aircraft Fact Files - RAF Fighters Part 1, William Green and Gordon Swanborough ((McDonald and Jane's, 1978)
37.Ultralights, The Early British Classics, Richard Riding (Patrick Stephens, 1987)
38.The History of Black Country Aviation, Alec Brew (Alan Sutton, 1993)
39.British Aircraft of WWI, Volume 1 - Experimental Fighters Part 1, Colin A Owers (Aeronaut Books, 2017)
40.Osprey Aircraft of the Aces Series #105 - Defiant Blenheim and Havoc Aces, Andrew Thomas (Osprey Publishing, 2012)
41.The Hamlyn Concise Guide to British Aircraft Of The WWII, David Mondey (Hamlyn, 1982)
42.X-Planes and Prototypes - From Nazi Secret Weapons To The Warplanes Of The Future, Jim Winchester (Grange Books, 2005)
43.An Illustrated Guide to Allied Fighters of World War II, Bill Gunston (Salamander, 1981)
44.Mushroom Model Magazine Special - Yellow Series 6117 - Bolton Paul Defiant, Mark Ansell (Stratus Publications, 2005)
45.Aircraft Profile #117 - Boulton-Paul Defiant, Michael J.F. Bowyer (Profile Publications)
46.Camouflage & Markings #21 - USAAF 1942-45: British Aircraft in USAAF Service, Roger A. Freeman (Ducimus Books)
47.Camouflage & Markings #8 - Boulton Paul Defiant, R.C. Jones (Ducimus Books)
48.Warpaint Series 2 #42 - Boulton Paul Defiant, Alan W Hall (Warpaint Books Ltd, 2003)
49.British Secret Projects 3: Fighters 1935-1950, Tony Buttler (Crecy, 2018)

Magazines and Periodicals
 
300.Aeroplane Monthly May 1979351.The Aeroplane 18 Sep 1935
301.Aeroplane Monthly Apr 1986352.The Aeroplane 24 Oct 1947
302.Aeroplane Monthly Aug 1986353.The Aeroplane 02 Jul 1948
303.Aeroplane Monthly Oct 1986354.The Aeroplane 31 Aug 1951
304.Aeroplane Monthly Nov 1990355.Flight May 15 1919
305.Aeroplane Monthly Feb 1993356.Flight Oct 30 1919
306.Aeroplane Monthly Nov 1994357.Flight Dec 10 1919
307.Aeroplane Monthly Dec 1994358.Flight Jan 1 1920
308.Aeroplane Monthly Jan 1995359.Flight Sep 21 1922
309.Aeroplane Monthly Sep 1996360.Flight Oct 5 1922
310.Aeroplane Monthly Oct 2008361.Flight Sep 6 1923
311.Aeroplane Monthly Jan 2016362.Flight Apr 23 1925
312.Air Britain Aeromilitaria 1986/1 (Air-Britain Publications)363.Flight Sep 15 1927
313.Air Britain Aeromilitaria 1990/4 (Air-Britain Publications)364.Flight Mar 29 1928
314.Air Britain Aeromilitaria 2005/2 (Air-Britain Publications)365.Flight Dec 6 1928
315.Air Britain Aeromilitaria 2005/3 (Air-Britain Publications)366.Flight Jun 17 1932
316.Air Britain Aeromilitaria 2008/1 (Air-Britain Publications)367.Flight Apr 6 1933
317.Air Britain Aeromilitaria 2012/1 (Air-Britain Publications)368.Flight Jan 31 1935
318.Air Britain Aeromilitaria 2015/3 (Air-Britain Publications)369.Flight Sep 12 1935
319.Air Britain Archive 2002/1 (Air-Britain Publications)370.Flight Oct 22 1936
320.Air Britain Archive 2002/2 (Air-Britain Publications)371.Flight Aug 7 1947
321.Air Britain Archive 2002/4 (Air-Britain Publications)372.Flight Jul 1 1948
322.Air Britain Archive 2006/4 (Air-Britain Publications)373.Flight May 26 1949
323.Air Britain Aviation World 2010/2 (Air-Britain Publications)374.Flight Aug 31 1951
324.Air Enthusiast Quarterly No 5375.Flight 18 Oct 1954
325.Air Enthusiast Quarterly No 60376.Flight 17 May 1962
326.Air Enthusiast Quarterly No 69
327.Air Enthusiast Quarterly No 80
328.Air Enthusiast Quarterly No 100
329.Air Enthusiast Quarterly No 101
330.Air Enthusiast Quarterly No 102
331.Air Enthusiast Quarterly No 106
332.Air Enthusiast Quarterly No 107
333.Air Enthusiast Quarterly No 108
334.Air International Jul 1991
335.Air International Aug 1991
336.Air Pictorial Aug 1961
337.Air Pictorial Sep 1961
338.Air Pictorial Oct 1966
339.Aircraft Illustrated Oct 1973
340.Aviation News Vol 1 No 18
341.Aviation News Vol 2 No 25
342.Aviation News Vol 4 No 16
343.Aviation News Vol 10 No 9
344.Wingspan (Incorporating Planes) No 23
345.Wingspan (Incorporating Planes) No 33
346.Wingspan (Incorporating Planes) No 34
347.Wingspan (Incorporating Planes) No 53
348.21st Profile No 16
349.The Aeroplane 05 Apr 1933
350.The Aeroplane 30 Jan 1935

Websites
 
800. https://www.secretprojects.co.uk/forum/index.php/topic,936.0.html
801. https://www.secretprojects.co.uk/forum/index.php/topic,983.0.html
802. https://www.secretprojects.co.uk/forum/index.php/topic,3136.0.html
803. https://www.secretprojects.co.uk/forum/index.php/topic,3537.0.html
804. https://www.secretprojects.co.uk/forum/index.php/topic,3668.0.html
805. https://www.secretprojects.co.uk/forum/index.php/topic,5795.0.html
806. https://www.secretprojects.co.uk/forum/index.php/topic,8723.0.html
807. https://www.secretprojects.co.uk/forum/index.php/topic,9278.0.html
808. https://www.secretprojects.co.uk/forum/index.php/topic,11133.0.html
809. https://www.secretprojects.co.uk/forum/index.php/topic,13371.0.html
810. https://www.secretprojects.co.uk/forum/index.php/topic,16443.0.html
811. https://www.secretprojects.co.uk/forum/index.php/topic,17840.0.html
812. https://www.secretprojects.co.uk/forum/index.php/topic,18255.0.html
813. https://www.secretprojects.co.uk/forum/index.php/topic,20993.0.html
814. https://www.secretprojects.co.uk/forum/index.php/topic,25819.0.html
815. https://www.secretprojects.co.uk/forum/index.php/topic,25888.0.html
816. https://www.secretprojects.co.uk/forum/index.php/topic,25890.0.html
817. https://www.secretprojects.co.uk/forum/index.php/topic,28771.0.html




Production Summary top
Select the Prdn_List button to go to the appropriate listings page.

Note: In the Production Summary, conversions are only listed where they result in a change from one Type to another. Changes to sub-type or Mark Number are not shown in the summary. For details of these, see the individual listings.

Type No

Name

Qty (New)

Qty (Conv.)

Canc'd

 

 P.3

 Bobolink

1

 

2

Prdn_List.jpg

 P.5

 Hawk

 

 

3

Prdn_List.jpg

 P.6

 

1

 

 

Prdn_List.jpg

 P.7

 Bourges

3

 

 

Prdn_List.jpg

 P.8

 Atlantic

2

 

 

Prdn_List.jpg

 P.9

 

8

 

 

Prdn_List.jpg

 P.10

 

1

 

 

Prdn_List.jpg

 P.12

 Bodmin

2

 

 

Prdn_List.jpg

 P.15

 Bolton

1

 

 

Prdn_List.jpg

 P.25

 Bugle

7

 

 

Prdn_List.jpg

 P.29

 Sidestrand

20

 

 

Prdn_List.jpg

 P.31

 Bittern

2

 

 

Prdn_List.jpg

 P.32

 

1

 

 

Prdn_List.jpg

 P.33

 Partridge

1

 

 

Prdn_List.jpg

 P.41

 Phoenix

1

 

 

Prdn_List.jpg

 P.64

 

1

 

 

Prdn_List.jpg

 P.71A

 

2

 

 

Prdn_List.jpg

 P.75

 Overstrand

24

(4)

 

Prdn_List.jpg

 P.80

 Superstrand

 

 

5

Prdn_List.jpg

 P.82

 Defiant

1062

 

340

Prdn_List.jpg

 P.92

 

 

 

3

Prdn_List.jpg

 P.92/2

 

1

 

 

Prdn_List.jpg

 P.108

 Balliol

229

 

192

Prdn_List.jpg

 P.111

 

1

 

 

Prdn_List.jpg

 P.120

 

1

 

 

Prdn_List.jpg

 

Total Boulton Paul Production

1372 

Total Boulton Paul Cancelled Orders

545 

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Page Revision History Page Top

Revised at Version 1.4.0
  • Added P.58A & B.
  • P.74 now P.74A to D, P.88 now P.88A & B, P.96 now P.96A to D, P.97 now P.97A & B, P.135 now P.135A & B.
  • Jet Barracuda now recognized as P.102.
  • Corrected dates to better match start of design.
  • Updated Specifications and OR's.

V1.4.2 Created by Roger Moss. Last updated December 2019