28:
166:
Both were finished in dark green with "night black" undersides for their role as "Anti-Bomber
Formation Fighters". The first prototype carried out full performance and armament trials at Martlesham Heath from March 1927; the second went through the same tests in April 1928. The A&AEE reports were
147:
Two prototypes were built. The first was a cantilever wing design with the engines - 214 hp
Armstrong-Siddeley Lynx - on the leading edge of the wing. However initial trials showed that the wing was too flexible and so wing struts were added fixed between the bottom of the fuselage and the
162:
mounted in swiveling barbettes on fuselage. These could be angled from 0-45° upwards so the fighter could attack bombers from below without having to put the aircraft into a climb. The wingspan of the second prototype was increased by about 5 ft (1.5 m).
167:
favourable except that the top speed - 145 mph - was rather slow. More trials were carried out before they were returned to
Boulton & Paul. They were flown by the manufacturer for a while longer before being broken up.
148:
engine installations. However this added weight and drag with a commensurate effect on performance. The second prototype had the engines suspended from the wings on the struts.
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2 x two 0.303 in (7.70 mm) Lewis machine-guns in revolving barbettes either side of the nose (J7937).
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145 mph (233 km/h, 126 kn) (J7936) 152 mph (245 km/h) (J7937)
1135:
824:
133:
98:
158:
mounted on the fuselage sides. In the second the guns were changed from
Vickers to
152:
278:
2 x fixed forward-firing 0.303 in (7.70 mm) Vickers machine-guns (J7936)
170:
During testing performance was so poor that further development was abandoned.
159:
137:
132:
aircraft, the
Bittern design was unusual for its time in that it was a twin-
27:
128:
27/24, which called for a single-seat night fighter for use against enemy
101:
225:
7-cyl. air-cooled radial piston engine, 230 hp (170 kW) each
141:
113:
109:
431:(1st ed.). London: Putnam ; Language English. p. 187.
129:
526:
1104:
1078:
1037:
991:
960:
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565:
461:. Annapolis, Maryland, US: Naval Institute Press.
325:The WWII Fighter Gun Debate: Upward firing guns
538:
8:
957:
545:
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523:
427:Mason, Francis K. (17 September 1992).
422:
420:
317:
285:Night landing flares under the fuselage
373:
362:
17:
484:. Putnam & Company Ltd. pp.
399:. Putnam & Company Ltd. pp.
7:
1162:Twin piston-engined tractor aircraft
203:41 ft 0 in (12.50 m)
197:32 ft 4 in (9.86 m)
174:Specifications (P.31 Bittern J7936)
347:The Encyclopedia of World Aircraft
151:The first prototype had two fixed
14:
182:Boulton Paul Aircraft since 1915.
480:Boulton Paul Aircraft since 1915
395:Boulton Paul Aircraft since 1915
26:
349:. Prospero Books. p. 118.
1147:1920s British fighter aircraft
459:The British Fighter since 1912
429:The British Fighter since 1912
1:
215:4,500 lb (2,041 kg)
209:3,215 lb (1,458 kg)
1157:Aircraft first flown in 1927
140:rather than a single-engine
505:Boulton & Paul Aircraft
345:Donald, David, ed. (1997).
1178:
457:Mason, Francis K. (1992).
153:.303 in (7.7 mm)
126:Air Ministry Specification
34:
25:
20:
301:List of fighter aircraft
954:By role (service names)
503:Kinsey, Gordon (1992).
223:Armstrong Siddeley Lynx
188:General characteristics
507:. Terence Dalton Ltd.
120:Design and development
1142:Boulton Paul aircraft
156:Vickers machine guns
106:Boulton Paul Limited
92:Boulton Paul Bittern
55:Boulton Paul Limited
476:Brew, Alec (1993).
391:Brew, Alec (1993).
1152:High-wing aircraft
554:Boulton & Paul
116:of the same name.
112:, named after the
1129:
1128:
1125:
1124:
372:Missing or empty
365:cite encyclopedia
88:
87:
35:Second prototype
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45:Type of aircraft
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238:Maximum speed:
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136:shoulder wing
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74:February 1927
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514:0-86138-085-1
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495:0-85177-860-7
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468:1-55750-082-7
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438:0-85177-852-6
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410:0-85177-860-7
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356:1-85605-375-X
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295:Related lists
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245:
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235:
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213:Gross weight:
211:
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207:Empty weight:
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99:night-fighter
97:
93:
83:
78:
77:
73:
71:First flight
70:
69:
66:
63:
60:
59:
56:
53:
51:Manufacturer
50:
49:
42:
39:
38:
33:
29:
24:
21:P.31 Bittern
19:
16:
1038:Experimental
972:
659:
568:designations
566:Manufacturer
558:Boulton Paul
504:
479:
458:
450:Bibliography
428:
394:
386:
374:|title=
346:
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177:
169:
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150:
146:
124:Designed to
123:
94:was a 1920s
91:
89:
80:Number built
15:
231:Performance
219:Powerplant:
1136:Categories
1079:Transports
1024:Overstrand
1019:Sidestrand
335:Kinsey p52
307:References
244:Endurance:
160:Lewis guns
114:marsh bird
65:J.D. North
1091:Mailplane
983:Partridge
201:Wingspan:
179:Data from
138:monoplane
104:built by
61:Designer
1105:Trainers
1086:Atlantic
1045:Atlantic
968:Bobolink
961:Fighters
560:aircraft
290:See also
265:Armament
102:aircraft
1117:Balliol
1112:Phoenix
1004:Bourges
992:Bombers
978:Defiant
973:Bittern
254:⁄
195:Length:
142:biplane
134:engined
110:Norwich
96:British
43:Fighter
1060:P.92/2
1009:Bodmin
999:Bolton
511:
492:
488:–203.
465:
435:
407:
403:–203.
353:
130:bomber
1096:P.71A
1070:P.120
1065:P.111
1014:Bugle
945:P.146
940:P.145
935:P.144
930:P.143
925:P.142
920:P.141
915:P.140
910:P.137
905:P.136
900:P.135
895:P.134
890:P.132
885:P.130
880:P.120
875:P.119
870:P.116
865:P.115
860:P.112
855:P.111
850:P.108
845:P.107
840:P.103
312:Notes
273:Guns:
259:hours
40:Role
1055:P.10
1029:P.32
835:P.97
830:P.94
825:P.93
820:P.92
815:P.90
810:P.85
805:P.82
800:P.80
795:P.79
790:P.75
785:P.71
780:P.64
775:P.63
770:P.62
765:P.60
760:P.59
755:P.58
750:P.57
745:P.55
740:P.54
735:P.49
730:P.48
725:P.47
720:P.46
715:P.45
710:P.42
705:P.41
700:P.40
695:P.38
690:P.37
685:P.36
680:P.35
675:P.34
670:P.33
665:P.32
660:P.31
655:P.29
650:P.28
645:P.25
640:P.19
635:P.15
630:P.12
625:P.11
620:P.10
556:and
509:ISBN
490:ISBN
463:ISBN
433:ISBN
405:ISBN
378:help
351:ISBN
221:2 ×
90:The
1050:P.6
615:P.9
610:P.8
605:P.7
600:P.6
595:P.5
590:P.4
585:P.3
580:P.2
575:P.1
486:199
401:199
108:of
1138::
419:^
369::
367:}}
363:{{
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413:.
380:)
376:(
359:.
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249:+
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