Knowledge (XXG)

Ilyushin DB-4

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26: 157:, an 18-cylinder liquid-cooled engine of unusual design, with three banks of six cylinders arranged in an inverted "Y"-shape, which was to have a takeoff power of 1,800 hp (1,346 kW). It was to have a crew of four consisting of a pilot, navigator, dorsal gunner and radio operator. Defensive armament was three 149:). While the DB-3F was a relatively simple upgrade of the DB-3, the TsKB-56, which had the service designation DB-3, was larger and heavier, in order to meet the requirements for greater performance and a heavier bombload. The DB-4 had a high-mounted wing to accommodate a large bomb bay, with a retractable 181:
Flight testing showed that the aircraft had poor low speed stability, while the fuselage, with its large bomb bay was prone to flexing, resulting in larger tail surfaces being fitted and the fuselage being strengthened. The AM-37 engines, while a development of the earlier
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and was intended as a replacement for the earlier aircraft, but only two prototypes were built; engine problems and the need to concentrate production on existing types following the German invasion of the Soviet Union in June 1941 meant that no more examples were built.
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twin-engined, long-range bomber. Ilyushin carried out design work on the new aircraft, which was given the internal design bureau designation TsKB-56, in parallel with the DB-3F (later designated the
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at its controls. The second aircraft, with twin tails, was completed in November 1940 with M-120 engines, but these were replaced with AM-37s before it flew on 20 February 1941.
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in 1941 lead to an end of production of the DB-4, with the factory allocated for production evacuated from Moscow to the East, and ordered to concentrate on urgently needed
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ground-attack aircraft and the Il-4 bomber. The two prototypes continued in use as testbeds to aid development of improved versions of the Il-4 and the later
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to allow testing of the first prototype to be completed. This aircraft, fitted with a single vertical fin, made its maiden flight on 15 October 1940, with
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The proposed M-120 engines proved to be troublesome, and it was decided to replace them with 1,400 hp (1,044 kW)
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engine, proved to be unreliable, and plans were made to fit alternative engines, including the
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fitted, while the radial engines of the DB-3 were to be replaced by the new
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500 km/h (310 mph, 270 kn) at 6,000 m (19,700 ft)
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OKB Ilyushin: A History of the Design Bureau and its Aircraft
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Gordon, Yefim, Dmitry Komissarov and Sergei Komissarov.
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1,000 kg (2,200 lb ) normal (3,000 kg (6,600) maximum)
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The Osprey Encyclopedia of Russian Aircraft 1875–1995
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The Osprey Encyclopedia of Russian Aircraft 1875–1995
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Gordon, Komissarov and Komissarov 2004, pp. 105–106.
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Gordon, Komissarov and Komissarov 2004, pp. 104–105.
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Hinkley, UK: Midland Publishing, 2004. 356: 291:, 1,000 kW (1,400 hp) each 15: 1152: 1132: 7: 1293:Twin piston-engined tractor aircraft 338:(nose, dorsal and ventral positions) 113:- central construction bureau) is a 111:Tsentral'noye Konstruktorskoye Byuro 882:bomber/attack aircraft designations 247:17.85 m (58 ft 7 in) 206:German invasion of the Soviet Union 253:25.0 m (82 ft 0 in) 14: 259:83.0 m (893 sq ft) 277:13,006 kg (28,673 lb) 24: 271:10,860 kg (23,942 lb) 101:(DB - Дальний бомбардировщик - 318:10,000 m (33,000 ft) 265:7,561 kg (16,669 lb) 1: 1288:Aircraft first flown in 1940 1278:1940s Soviet bomber aircraft 1309: 1253: 1171:Short-range dive bomber ( 23: 18: 453:. London: Osprey, 1995. 105:- long-range bomber) or 103:Dalniy Bombardirovshchik 1051:Heavy bomber seaplane ( 232:General characteristics 151:tailwheel undercarriage 134:In the late 1930s, the 1242:High-speed dive bomber 130:Design and development 1101:Heavy ground-attack ( 370:Gunston 1995, p. 103. 1255:Unknown/not assigned 1211:Light armored-attack 1182:BPB-1 through BPB-21 890:Short-range bomber ( 975:DB-5 through DB-239 937:Long-range bomber ( 275:Max takeoff weight: 1283:High-wing aircraft 916:BB-4 through BB-21 694:Passenger aircraft 336:ShKAS machine guns 176:Vladimir Kokkinaki 159:ShKAS machine guns 1273:Ilyushin aircraft 1260: 1259: 847: 846: 199:Charomskiy ACh-30 95: 94: 36:Long-range bomber 1300: 1243: 1235: 1220: 1212: 1204: 1183: 1174: 1154: 1151:Torpedo bomber ( 1134: 1131:Torpedo bomber ( 1104: 1079: 1076:Armored bomber ( 1054: 1004: 976: 940: 917: 893: 874: 867: 860: 851: 490: 483: 476: 467: 418: 415: 409: 406: 400: 397: 380: 377: 371: 368: 326: 316:Service ceiling: 299: 234: 86: 76: 69:15 October 1940 46: 38:Type of aircraft 28: 16: 1308: 1307: 1303: 1302: 1301: 1299: 1298: 1297: 1263: 1262: 1261: 1256: 1249: 1203:Tactical bomber 1191: 1181: 1166: 1146: 1126: 1096: 1071: 1046: 996: 974: 932: 915: 885: 878: 848: 843: 827: 791: 745: 689: 628: 572: 526:Attack aircraft 521: 500: 494: 464: 427: 422: 421: 416: 412: 407: 403: 398: 383: 378: 374: 369: 358: 353: 327: 322: 295: 230: 222: 132: 119:bomber aircraft 84: 74: 45:National origin 44: 39: 12: 11: 5: 1306: 1304: 1296: 1295: 1290: 1285: 1280: 1275: 1265: 1264: 1258: 1257: 1254: 1251: 1250: 1248: 1247: 1239: 1231: 1230: 1229: 1216: 1208: 1199: 1197: 1193: 1192: 1190: 1189: 1184: 1178: 1176: 1168: 1167: 1165: 1164: 1158: 1156: 1148: 1147: 1145: 1144: 1138: 1136: 1128: 1127: 1125: 1124: 1119: 1114: 1108: 1106: 1098: 1097: 1095: 1094: 1089: 1083: 1081: 1073: 1072: 1070: 1069: 1064: 1058: 1056: 1048: 1047: 1045: 1044: 1039: 1034: 1029: 1024: 1019: 1014: 1008: 1006: 1001:Heavy bomber ( 998: 997: 995: 994: 989: 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207: 203: 202:Diesel engine 200: 196: 193: 189: 188:Shvetsov M-71 185: 179: 177: 174: 170: 167: 166:Mikulin AM-37 162: 160: 156: 152: 148: 144: 140: 137: 129: 127: 124: 123:Ilyushin DB-3 120: 117:twin-engined 116: 112: 108: 104: 100: 99:Ilyushin DB-4 91: 90:Ilyushin DB-3 88: 83: 82: 78: 73: 72: 68: 66:First flight 65: 64: 61: 58: 56:Manufacturer 55: 54: 51: 48: 43: 42: 35: 32: 31: 27: 22: 17: 969: 796:Experimental 706:Il-18 (1946) 593: 450: 432: 413: 404: 375: 347: 341: 334:3 × 7.62 mm 331: 323: 321: 315: 309: 303: 296: 294: 280: 274: 268: 262: 256: 250: 244: 238: 231: 229: 224: 223: 180: 163: 155:Klimov M-120 133: 110: 106: 102: 98: 96: 75:Number built 60:Ilyushin OKB 50:Soviet Union 1219:Fast bomber 1196:Descriptors 884:, 1923–1940 297:Performance 281:Powerplant: 169:V12 engines 1267:Categories 762:Il-22 (II) 645:Il-20 (II) 633:Transports 425:References 289:V12 engine 257:Wing area: 173:test pilot 604:Il-22 (I) 553:Il-20 (I) 251:Wingspan: 225:Data from 505:Fighters 499:aircraft 497:Ilyushin 324:Armament 216:bomber. 197:and the 136:Ilyushin 109:(TsKB - 880:Soviet 832:Trainer 685:PAK VTA 577:Bombers 245:Length: 107:TsKB-56 1187:BPB-22 980:DB-240 839:Il-103 777:Il-140 757:Il-20M 741:Il-114 736:Il-108 680:Il-276 675:Il-112 670:Il-106 568:Il-102 457:  439:  342:Bombs: 310:Range: 115:Soviet 1162:TOM-1 1122:TSh-3 1117:TSh-2 1112:TSh-1 1092:BSh-2 1087:BSh-1 1067:MTB-2 1062:MTB-1 992:DB-LK 921:BB-22 823:Il-26 787:A-100 772:Il-38 767:Il-24 731:Il-96 726:Il-90 721:Il-86 716:Il-62 711:Il-18 701:Il-14 665:Il-80 660:Il-78 655:Il-76 650:Il-32 640:Il-12 624:Il-54 619:Il-46 614:Il-30 609:Il-28 563:Il-42 558:Il-40 548:Il-16 543:Il-10 351:Notes 332:Guns: 239:Crew: 184:AM-35 33:Role 19:DB-4 1214:LBSh 1042:TB-7 1037:TB-6 1032:TB-5 1027:TB-4 1022:TB-3 1017:TB-2 1012:TB-1 987:DB-A 970:DB-4 958:DB-3 953:DB-2 948:DB-1 911:BB-3 906:BB-2 901:BB-1 818:Il-8 813:Il-1 808:I-21 803:A-60 782:A-50 599:Il-6 594:DB-4 589:Il-4 584:DB-3 538:Il-8 533:Il-2 517:Il-1 512:I-21 455:ISBN 437:ISBN 283:2 × 241:four 210:Il-2 192:M-82 190:and 147:Il-4 143:DB-3 97:The 1245:SPB 1237:ShB 1173:BPB 1153:TOM 1142:T-1 1103:TSh 1078:BSh 1053:MTB 926:bis 139:OKB 1269:: 1227:RK 1222:SB 1206:FB 1003:TB 939:DB 892:BB 449:. 384:^ 359:^ 79:2 1175:) 1155:) 1135:) 1133:T 1105:) 1080:) 1055:) 1005:) 963:F 941:) 894:) 873:e 866:t 859:v 489:e 482:t 475:v 461:. 443:.

Index


Soviet Union
Ilyushin OKB
Ilyushin DB-3
Soviet
bomber aircraft
Ilyushin DB-3
Ilyushin
OKB
DB-3
Il-4
tailwheel undercarriage
Klimov M-120
ShKAS machine guns
Mikulin AM-37
V12 engines
test pilot
Vladimir Kokkinaki
AM-35
Shvetsov M-71
M-82
radial engines
Charomskiy ACh-30
Diesel engine
German invasion of the Soviet Union
Il-2
Ilyushin Il-6
Mikulin AM-37
V12 engine
ShKAS machine guns

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