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40:
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on 14 September 1932, with all examples built being in service by the end of March 1933. The new bomber proved impossible to intercept during air exercises in May 1932, strengthening calls for improved air defense warning systems. Two B-9s were destroyed during crashes in 1933, one of the accidents
247:, demonstrating a speed of 163 mph (262 km/h). Testing was successful, and both the XB-901 and the as-yet incomplete Model 214 were purchased as the YB-9 and Y1B-9 respectively on 13 August 1931, with an order for a further five for service testing following.
266:, increased its top speed to 173 mph (278 km/h). The YB-9, meanwhile, had been re-engined with more powerful Hornet Bs, demonstrating slightly better performance than the Y1B-9, which was therefore also re-engined with Hornet Bs.
225:. Both aircraft were low winged cantilever monoplanes with a slim, oval cross-section fuselage accommodating a crew of five. The pilot and co-pilot sat in separate open cockpits, with the co-pilot, who doubled as the
229:
sitting forward of the pilot. Two gunners, each armed with a single machine gun sat in nose and dorsal positions, while a radio operator sat inside the fuselage. Like the
Monomail, a retractable
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transport. While enclosed canopies were considered and designed, the B-9 was never fitted with them. Although it equaled the speed of existing
American
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918:
403:(Y1G1SR-1860B) (600 hp). Metal instead of fabric covering on the control surfaces. There were also many internal structural and equipment changes
214:
Boeing built two prototypes of a new bomber as a private venture, which differed in the engines used, with the Model 214 powered by two liquid-cooled
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2155:
2135:
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2105:
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2015:
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262:-29 'Conqueror' engines, first flew on 5 November 1931. The increased power from these engines, combined with improved streamlining of the engine
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being fatal, while the remaining aircraft were gradually phased out over the next two years, with the last being withdrawn on 26 April 1935.
5004:
3843:
1755:
1750:
211:, and Boeing decided to design and build a twin-engined bomber using the same techniques used in the Monomail to re-equip the Air Corps.
4693:
165:
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4475:
911:
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1032:
1601:
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527:
400:
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219:
4999:
904:
310:
203:
with a retractable undercarriage. Air Corps bomber squadrons of the day were largely equipped with slow strut-braced
350:(600 hp or 450 kW) and was fitted with three-bladed propellers. Trim tab ran the full height of the rudder
1423:
1296:
4709:
4647:
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1464:
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886:
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236:
The first of the two prototypes to fly was the radial powered Model 215 which, carrying civil markings and the
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1113:
1103:
859:
Pelletier, Alain (September–October 2002). "End of the
Dinosaurs: Boeing's B-9, Breaking the Bomber Mold".
454:
326:
243:, made its first flight on 13 April 1931. It was leased to the Air Corps for testing under the designation
150:
85:
17:
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4391:
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215:
5009:
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3449:
1428:
1286:
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1133:
1108:
589:
375:
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had flown a prototype of a more advanced bomber, the XB-907, which was ordered into production as the
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indicating funding outside normal fiscal year procurement), powered by two liquid-cooled
4906:
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1413:
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4781:
4257:
4237:
4130:
4120:
3394:
1403:
882:
845:
826:
382:(600 hp) and was fitted with three-bladed propellers. Short trim tab on rudder.
39:
4741:
4351:
4324:
4152:
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2685:
2200:
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1970:
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1935:
1930:
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942:
802:
762:
612:
182:
154:
153:. The YB-9 was a much enlarged twin-engine development of Boeing's single-engine
55:
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331:
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530:
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222:
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2205:
2190:
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1083:
1007:
962:
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629:
208:
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4023:
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3469:
3149:
2675:
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2490:
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2270:
2175:
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2145:
2130:
2120:
2110:
2080:
1995:
1955:
1715:
1586:
1581:
1576:
1571:
1561:
1383:
1347:
1255:
1245:
1138:
1027:
1022:
1017:
1002:
997:
992:
987:
982:
977:
972:
967:
957:
624:
548:
188 mph (303 km/h, 163 kn) at 6,000 ft (1,800 m)
294:
4786:
3858:
3853:
3848:
3805:
3800:
3788:
3754:
3715:
3710:
3705:
3700:
3681:
3676:
2565:
2405:
2125:
2050:
2045:
2035:
2010:
1915:
1745:
1688:
1408:
1373:
1291:
1235:
1174:
952:
947:
282:
197:
3838:
2305:
2065:
1980:
1770:
277:
engines which powered the re-engined YB-9 and Y1B-9 and a redesigned
200:
190:
186:
143:
207:
built from steel-tube frames covered in doped fabric, such as the
263:
204:
189:. The Monomail was of radical design for the time, being a semi-
1648:
420:(not built). Proposed development of Y1B-9A with minor changes.
178:
146:
67:
4708:
346:(575 hp or 429 kW). Reengined with supercharged
305:
The first of the five Y1B-9As entered service with the
719:
717:
714:
705:
619:
Aircraft of comparable role, configuration, and era
1647:
867:
687:
273:service test aircraft (Boeing Model 246) had the
4991:
766:National Museum of the United States Air Force
680:
678:
676:
647:List of military aircraft of the United States
4694:
3963:
1633:
912:
868:Swanborough, F. G.; Bowers, Peter M. (1963).
378:) (600 hp). Reengined with supercharged
926:
780:
742:
740:
738:
673:
4701:
4687:
3970:
3956:
1640:
1626:
919:
905:
870:United States Military Aircraft since 1909
771:
469:United States Military Aircraft since 1909
460:
858:
735:
696:
554:165 mph (266 km/h, 143 kn)
289:, no further aircraft were built, as the
160:
3993:bomber designations, Army/Air Force and
325:
164:
800:
726:
664:
560:540 mi (870 km, 470 nmi)
14:
4992:
876:
820:
528:Pratt & Whitney R-1860-11 Hornet B
401:Pratt & Whitney R-1860-11 Hornet B
380:Pratt & Whitney R-1860-11 Hornet B
348:Pratt & Whitney R-1860-11 Hornet B
344:Pratt & Whitney R-1860-13 Hornet B
300:
275:Pratt & Whitney R-1860-11 Hornet B
4682:
3951:
1621:
900:
839:
5020:Twin piston-engined tractor aircraft
496:76 ft 10 in (23.42 m)
218:engines while the Model 215 had two
5005:1930s United States bomber aircraft
786:Swanborough and Bowers 1963, p. 73.
684:Swanborough and Bowers 1963, p. 72.
597:2,260 lb (1,030 kg) bombs
490:52 ft 0 in (15.85 m)
220:Pratt & Whitney R-1860 Hornet B
27:Prototype bomber aircraft by Boeing
24:
844:. Fallbrook, CA: Aero Publishers.
801:Baugher, Joe (10 September 2002).
502:12 ft 0 in (3.66 m)
25:
5031:
807:Encyclopedia of American Aircraft
533:, 600 hp (450 kW) each
508:954 sq ft (88.6 m)
863:. Vol. 101. pp. 44–49.
440:
38:
793:
588:2 Ă— .30 in (7.62 mm)
169:Boeing Y1B-9A in flight with a
749:
572:900 ft/min (4.6 m/s)
520:14,320 lb (6,495 kg)
13:
1:
652:
566:20,750 ft (6,320 m)
514:8,941 lb (4,056 kg)
5015:Aircraft first flown in 1931
657:
455:United States Army Air Corps
433:
151:United States Army Air Corps
86:United States Army Air Corps
7:
4712:project numbers (1930–1934)
4636:Fighter-bomber, in F-series
601:
330:Boeing Y1B-9 with original
321:
216:Curtiss V-1570-29 Conqueror
10:
5036:
823:Boeing Aircraft since 1916
777:Pelletier 2002, pp. 48–49.
746:Pelletier 2002, pp. 46–47.
702:Pelletier 2002, pp. 44–45.
376:Curtis V-1570-29 Conqueror
372:Curtiss GIV-1570 Conqueror
311:49th Bombardment Squadrons
149:aircraft designed for the
4980:
4717:
4656:
4635:
4614:
4607:
4584:
4556:
4143:
4113:
4092:
4011:
4002:
3929:
3913:
3867:
3831:
1656:
1524:
1473:
1442:
1366:
1315:
1264:
1203:
1168:Piston-engined transports
1167:
1071:
935:
821:Bowers, Peter M. (1989).
723:Bowers 1989, pp. 202–203.
711:Bowers 1989, pp. 200–201.
128:
120:
112:
104:
99:
91:
81:
73:
61:
51:
46:
37:
32:
5000:Boeing military aircraft
936:Fighters/attack aircraft
768:. Retrieved 7 July 2010.
761:August 29, 2007, at the
142:was the first all-metal
1525:Experimental/prototypes
1367:Patrol and surveillance
881:. New York: Doubleday.
642:List of bomber aircraft
475:General characteristics
461:Specifications (Y1B-9A)
360:contract number: XB-901
291:Glenn L. Martin Company
231:tailwheel undercarriage
1651:aircraft model numbers
879:American Combat Planes
732:Pelletier 2002, p. 47.
670:Pelletier 2002, p. 44.
335:
174:
161:Design and development
157:commercial transport.
4615:Redesignated A-series
3937:Boeing Customer Codes
840:Jones, Lloyd (1974).
334:liquid-cooled engines
329:
238:aircraft registration
168:
77:No surviving examples
4585:Tri-Service sequence
877:Wagner, Ray (1982).
693:Bowers 1989, p. 200.
607:Related development
518:Max takeoff weight:
301:Operational history
279:vertical stabilizer
47:General information
4003:Original sequences
825:. London: Putnam.
427:Boeing model B-276
410:Boeing model B-246
389:Boeing model B-214
357:Boeing model B-215
336:
183:Model 200 Monomail
175:
155:Model 200 Monomail
5010:Low-wing aircraft
4987:
4986:
4676:
4675:
4672:
4671:
4557:Long-range bomber
4139:
4138:
3945:
3944:
1615:
1614:
1265:Tanker-transports
930:military aircraft
872:. London: Putnam.
756:"YB-9 factsheet."
399:(five produced).
332:Curtiss Conqueror
136:
135:
113:Introduction date
16:(Redirected from
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3694:-100/146/148/166
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682:
671:
668:
580:
564:Service ceiling:
541:
477:
446:
444:
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370:(one produced).
342:(one produced).
287:fighter aircraft
42:
30:
29:
21:
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3832:Turbine engines
3827:
3731:Next Generation
1652:
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1520:
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763:Wayback Machine
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613:Boeing Monomail
604:
581:
576:
537:
473:
463:
441:
439:
436:
324:
303:
281:modeled on the
185:single-engined
163:
116:5 November 1931
56:Bomber aircraft
28:
23:
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12:
11:
5:
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5017:
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4616:
4609:
4608:Non-sequential
4605:
4604:
4602:
4601:
4596:
4590:
4588:
4587:(1962–current)
4582:
4581:
4579:
4578:
4573:
4568:
4562:
4560:
4554:
4553:
4551:
4550:
4545:
4540:
4535:
4530:
4525:
4520:
4515:
4510:
4505:
4500:
4495:
4490:
4485:
4480:
4479:
4478:
4473:
4463:
4458:
4453:
4448:
4443:
4438:
4433:
4432:
4431:
4421:
4416:
4411:
4410:
4409:
4399:
4394:
4389:
4384:
4379:
4374:
4369:
4364:
4359:
4354:
4349:
4348:
4347:
4342:
4332:
4327:
4322:
4317:
4312:
4307:
4302:
4301:
4300:
4290:
4285:
4280:
4275:
4270:
4265:
4260:
4255:
4250:
4245:
4240:
4235:
4230:
4225:
4220:
4215:
4210:
4205:
4200:
4195:
4190:
4185:
4180:
4175:
4170:
4165:
4160:
4155:
4149:
4147:
4141:
4140:
4137:
4136:
4134:
4133:
4128:
4123:
4117:
4115:
4111:
4110:
4108:
4107:
4102:
4096:
4094:
4090:
4089:
4087:
4086:
4081:
4076:
4071:
4066:
4061:
4056:
4051:
4046:
4041:
4036:
4031:
4026:
4021:
4015:
4013:
4006:
4000:
3999:
3975:
3974:
3967:
3960:
3952:
3943:
3942:
3940:
3939:
3933:
3931:
3927:
3926:
3924:
3923:
3917:
3915:
3911:
3910:
3908:
3907:
3902:
3897:
3892:
3887:
3882:
3877:
3871:
3869:
3865:
3864:
3862:
3861:
3856:
3851:
3846:
3841:
3835:
3833:
3829:
3828:
3826:
3825:
3820:
3815:
3814:
3813:
3803:
3798:
3797:
3796:
3786:
3785:
3784:
3779:
3778:
3777:
3767:
3762:
3752:
3751:
3750:
3745:
3744:
3743:
3738:
3728:
3723:
3713:
3708:
3703:
3698:
3697:
3696:
3686:
3685:
3684:
3673:
3672:
3667:
3662:
3657:
3652:
3647:
3642:
3637:
3632:
3627:
3622:
3617:
3612:
3607:
3602:
3597:
3592:
3587:
3582:
3577:
3572:
3567:
3562:
3557:
3552:
3547:
3542:
3537:
3532:
3527:
3522:
3517:
3512:
3507:
3502:
3497:
3492:
3487:
3482:
3477:
3472:
3467:
3462:
3457:
3452:
3447:
3442:
3437:
3432:
3427:
3422:
3417:
3412:
3407:
3402:
3397:
3392:
3387:
3382:
3377:
3372:
3367:
3362:
3357:
3352:
3347:
3342:
3337:
3332:
3327:
3322:
3317:
3312:
3307:
3302:
3297:
3292:
3287:
3282:
3277:
3272:
3267:
3262:
3257:
3252:
3247:
3242:
3237:
3232:
3227:
3222:
3217:
3212:
3207:
3202:
3197:
3192:
3187:
3182:
3177:
3172:
3167:
3162:
3157:
3152:
3147:
3142:
3137:
3132:
3127:
3122:
3117:
3112:
3107:
3102:
3097:
3092:
3087:
3082:
3077:
3072:
3067:
3062:
3057:
3052:
3047:
3042:
3037:
3032:
3027:
3022:
3017:
3012:
3007:
3002:
2997:
2992:
2987:
2986:
2985:
2975:
2970:
2965:
2960:
2955:
2950:
2945:
2940:
2935:
2930:
2925:
2920:
2915:
2910:
2905:
2900:
2895:
2890:
2885:
2880:
2879:
2878:
2868:
2863:
2858:
2853:
2848:
2843:
2838:
2833:
2828:
2823:
2818:
2813:
2808:
2803:
2798:
2793:
2788:
2783:
2778:
2773:
2768:
2763:
2758:
2753:
2748:
2743:
2738:
2733:
2728:
2723:
2718:
2713:
2708:
2703:
2698:
2693:
2688:
2683:
2678:
2673:
2668:
2663:
2658:
2653:
2648:
2643:
2638:
2633:
2628:
2623:
2618:
2613:
2608:
2603:
2598:
2593:
2588:
2583:
2578:
2573:
2568:
2563:
2558:
2553:
2548:
2543:
2538:
2533:
2528:
2523:
2518:
2513:
2508:
2503:
2498:
2493:
2488:
2483:
2478:
2473:
2468:
2463:
2458:
2453:
2448:
2443:
2438:
2433:
2428:
2423:
2418:
2413:
2408:
2403:
2398:
2393:
2388:
2383:
2378:
2373:
2368:
2363:
2358:
2353:
2348:
2343:
2338:
2333:
2328:
2323:
2318:
2313:
2308:
2303:
2298:
2293:
2288:
2283:
2278:
2273:
2268:
2263:
2258:
2253:
2248:
2243:
2238:
2233:
2228:
2223:
2218:
2213:
2208:
2203:
2198:
2193:
2188:
2183:
2178:
2173:
2168:
2163:
2158:
2153:
2148:
2143:
2138:
2133:
2128:
2123:
2118:
2113:
2108:
2103:
2098:
2093:
2088:
2083:
2078:
2073:
2068:
2063:
2058:
2053:
2048:
2043:
2038:
2033:
2028:
2023:
2018:
2013:
2008:
2003:
1998:
1993:
1988:
1983:
1978:
1973:
1968:
1963:
1958:
1953:
1948:
1943:
1938:
1933:
1928:
1923:
1918:
1913:
1908:
1903:
1898:
1893:
1888:
1883:
1878:
1873:
1868:
1863:
1858:
1853:
1848:
1843:
1838:
1833:
1828:
1823:
1818:
1813:
1808:
1803:
1798:
1793:
1788:
1783:
1778:
1773:
1768:
1763:
1758:
1753:
1748:
1743:
1738:
1733:
1728:
1723:
1718:
1713:
1708:
1703:
1698:
1697:
1696:
1686:
1681:
1676:
1671:
1666:
1660:
1658:
1654:
1653:
1645:
1644:
1637:
1630:
1622:
1613:
1612:
1610:
1609:
1604:
1599:
1594:
1589:
1584:
1579:
1574:
1569:
1564:
1559:
1554:
1549:
1544:
1539:
1534:
1528:
1526:
1522:
1521:
1519:
1518:
1513:
1508:
1503:
1498:
1493:
1488:
1483:
1477:
1475:
1471:
1470:
1468:
1467:
1462:
1457:
1452:
1446:
1444:
1443:Reconnaissance
1440:
1439:
1437:
1436:
1431:
1426:
1421:
1416:
1411:
1406:
1401:
1396:
1391:
1386:
1381:
1376:
1370:
1368:
1364:
1363:
1361:
1360:
1355:
1350:
1345:
1340:
1335:
1330:
1325:
1319:
1317:
1313:
1312:
1310:
1309:
1304:
1299:
1294:
1289:
1284:
1279:
1274:
1268:
1266:
1262:
1261:
1259:
1258:
1253:
1248:
1243:
1238:
1233:
1228:
1223:
1218:
1213:
1207:
1205:
1204:Jet transports
1201:
1200:
1198:
1197:
1192:
1187:
1182:
1177:
1171:
1169:
1165:
1164:
1162:
1161:
1156:
1151:
1146:
1141:
1136:
1131:
1126:
1121:
1116:
1111:
1106:
1101:
1096:
1091:
1086:
1081:
1075:
1073:
1069:
1068:
1066:
1065:
1060:
1055:
1050:
1045:
1040:
1035:
1030:
1025:
1020:
1015:
1010:
1005:
1000:
995:
990:
985:
980:
975:
970:
965:
960:
955:
950:
945:
939:
937:
933:
932:
924:
923:
916:
909:
901:
894:
893:
887:
874:
865:
861:Air Enthusiast
856:
850:
837:
831:
818:
797:
795:
792:
789:
788:
779:
770:
748:
734:
725:
713:
704:
695:
686:
672:
662:
661:
659:
656:
654:
651:
650:
649:
644:
633:
632:
627:
616:
615:
603:
600:
599:
598:
592:
574:
573:
570:Rate of climb:
567:
561:
555:
549:
546:Maximum speed:
535:
534:
521:
515:
509:
503:
497:
491:
485:
462:
459:
458:
457:
451:
450:
435:
432:
431:
430:
429:
428:
422:
421:
414:
413:
412:
411:
405:
404:
393:
392:
391:
390:
384:
383:
364:
363:
362:
361:
358:
352:
351:
323:
320:
315:2nd Bomb Group
302:
299:
260:Curtiss V-1570
223:radial engines
181:had flown its
162:
159:
134:
133:
130:
126:
125:
122:
118:
117:
114:
110:
109:
106:
102:
101:
97:
96:
93:
89:
88:
83:
79:
78:
75:
71:
70:
65:
59:
58:
53:
49:
48:
44:
43:
35:
34:
26:
9:
6:
4:
3:
2:
5032:
5021:
5018:
5016:
5013:
5011:
5008:
5006:
5003:
5001:
4998:
4997:
4995:
4979:
4973:
4970:
4965:
4963:
4960:
4955:
4950:
4948:
4945:
4943:
4940:
4938:
4935:
4933:
4930:
4928:
4925:
4923:
4920:
4918:
4915:
4913:
4910:
4908:
4905:
4903:
4900:
4898:
4895:
4893:
4890:
4888:
4885:
4883:
4880:
4878:
4875:
4873:
4870:
4868:
4865:
4863:
4860:
4858:
4855:
4853:
4850:
4848:
4845:
4843:
4840:
4838:
4835:
4830:
4828:
4825:
4823:
4820:
4815:
4813:
4810:
4808:
4805:
4800:
4798:
4795:
4793:
4790:
4788:
4785:
4783:
4780:
4778:
4775:
4773:
4770:
4768:
4765:
4763:
4760:
4758:
4755:
4753:
4750:
4745:
4743:
4740:
4738:
4735:
4733:
4730:
4728:
4725:
4723:
4720:
4719:
4716:
4711:
4704:
4699:
4697:
4692:
4690:
4685:
4684:
4681:
4665:
4662:
4661:
4659:
4655:
4649:
4646:
4644:
4641:
4640:
4638:
4634:
4628:
4625:
4623:
4620:
4619:
4617:
4613:
4610:
4606:
4600:
4597:
4595:
4592:
4591:
4589:
4583:
4577:
4574:
4572:
4569:
4567:
4564:
4563:
4561:
4555:
4549:
4546:
4544:
4541:
4539:
4536:
4534:
4531:
4529:
4526:
4524:
4521:
4519:
4516:
4514:
4511:
4509:
4506:
4504:
4501:
4499:
4496:
4494:
4491:
4489:
4486:
4484:
4481:
4477:
4474:
4472:
4469:
4468:
4467:
4464:
4462:
4459:
4457:
4454:
4452:
4449:
4447:
4444:
4442:
4439:
4437:
4434:
4430:
4427:
4426:
4425:
4422:
4420:
4417:
4415:
4412:
4408:
4405:
4404:
4403:
4400:
4398:
4395:
4393:
4390:
4388:
4385:
4383:
4380:
4378:
4375:
4373:
4370:
4368:
4365:
4363:
4360:
4358:
4355:
4353:
4350:
4346:
4343:
4341:
4338:
4337:
4336:
4333:
4331:
4328:
4326:
4323:
4321:
4318:
4316:
4313:
4311:
4308:
4306:
4303:
4299:
4296:
4295:
4294:
4291:
4289:
4286:
4284:
4281:
4279:
4276:
4274:
4271:
4269:
4266:
4264:
4261:
4259:
4256:
4254:
4251:
4249:
4246:
4244:
4241:
4239:
4236:
4234:
4231:
4229:
4226:
4224:
4221:
4219:
4216:
4214:
4211:
4209:
4206:
4204:
4201:
4199:
4196:
4194:
4191:
4189:
4186:
4184:
4181:
4179:
4176:
4174:
4171:
4169:
4166:
4164:
4161:
4159:
4156:
4154:
4151:
4150:
4148:
4144:Main sequence
4142:
4132:
4129:
4127:
4124:
4122:
4119:
4118:
4116:
4112:
4106:
4103:
4101:
4098:
4097:
4095:
4093:Medium bomber
4091:
4085:
4082:
4080:
4077:
4075:
4072:
4070:
4067:
4065:
4062:
4060:
4057:
4055:
4052:
4050:
4047:
4045:
4042:
4040:
4037:
4035:
4032:
4030:
4027:
4025:
4022:
4020:
4017:
4016:
4014:
4010:
4007:
4001:
3996:
3992:
3988:
3984:
3980:
3973:
3968:
3966:
3961:
3959:
3954:
3953:
3950:
3938:
3935:
3934:
3932:
3928:
3922:
3919:
3918:
3916:
3912:
3906:
3903:
3901:
3898:
3896:
3893:
3891:
3888:
3886:
3883:
3881:
3878:
3876:
3873:
3872:
3870:
3866:
3860:
3857:
3855:
3852:
3850:
3847:
3845:
3842:
3840:
3837:
3836:
3834:
3830:
3824:
3821:
3819:
3816:
3812:
3809:
3808:
3807:
3804:
3802:
3799:
3795:
3792:
3791:
3790:
3787:
3783:
3780:
3776:
3773:
3772:
3771:
3768:
3766:
3763:
3761:
3758:
3757:
3756:
3753:
3749:
3746:
3742:
3739:
3737:
3734:
3733:
3732:
3729:
3727:
3724:
3722:
3719:
3718:
3717:
3714:
3712:
3709:
3707:
3704:
3702:
3699:
3695:
3692:
3691:
3690:
3687:
3683:
3680:
3679:
3678:
3675:
3674:
3671:
3668:
3666:
3663:
3661:
3658:
3656:
3653:
3651:
3648:
3646:
3643:
3641:
3638:
3636:
3633:
3631:
3628:
3626:
3623:
3621:
3618:
3616:
3613:
3611:
3608:
3606:
3603:
3601:
3598:
3596:
3593:
3591:
3588:
3586:
3583:
3581:
3578:
3576:
3573:
3571:
3568:
3566:
3563:
3561:
3558:
3556:
3553:
3551:
3548:
3546:
3543:
3541:
3538:
3536:
3533:
3531:
3528:
3526:
3523:
3521:
3518:
3516:
3513:
3511:
3508:
3506:
3503:
3501:
3498:
3496:
3493:
3491:
3488:
3486:
3483:
3481:
3478:
3476:
3473:
3471:
3468:
3466:
3463:
3461:
3458:
3456:
3453:
3451:
3448:
3446:
3443:
3441:
3438:
3436:
3433:
3431:
3428:
3426:
3423:
3421:
3418:
3416:
3413:
3411:
3408:
3406:
3403:
3401:
3398:
3396:
3393:
3391:
3388:
3386:
3383:
3381:
3378:
3376:
3373:
3371:
3368:
3366:
3363:
3361:
3358:
3356:
3353:
3351:
3348:
3346:
3343:
3341:
3338:
3336:
3333:
3331:
3328:
3326:
3323:
3321:
3318:
3316:
3313:
3311:
3308:
3306:
3303:
3301:
3298:
3296:
3293:
3291:
3288:
3286:
3283:
3281:
3278:
3276:
3273:
3271:
3268:
3266:
3263:
3261:
3258:
3256:
3253:
3251:
3248:
3246:
3243:
3241:
3238:
3236:
3233:
3231:
3228:
3226:
3223:
3221:
3218:
3216:
3213:
3211:
3208:
3206:
3203:
3201:
3198:
3196:
3193:
3191:
3188:
3186:
3183:
3181:
3178:
3176:
3173:
3171:
3168:
3166:
3163:
3161:
3158:
3156:
3153:
3151:
3148:
3146:
3143:
3141:
3138:
3136:
3133:
3131:
3128:
3126:
3123:
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2027:
2024:
2022:
2019:
2017:
2014:
2012:
2009:
2007:
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2002:
1999:
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1994:
1992:
1989:
1987:
1984:
1982:
1979:
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1974:
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1969:
1967:
1964:
1962:
1959:
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1954:
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1407:
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1400:
1397:
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1308:
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1300:
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1269:
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1263:
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1244:
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1239:
1237:
1234:
1232:
1229:
1227:
1224:
1222:
1219:
1217:
1214:
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1206:
1202:
1196:
1193:
1191:
1188:
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1173:
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1160:
1157:
1155:
1152:
1150:
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1142:
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1137:
1135:
1132:
1130:
1127:
1125:
1122:
1120:
1117:
1115:
1112:
1110:
1107:
1105:
1102:
1100:
1097:
1095:
1092:
1090:
1087:
1085:
1082:
1080:
1077:
1076:
1074:
1070:
1064:
1061:
1059:
1056:
1054:
1051:
1049:
1046:
1044:
1041:
1039:
1036:
1034:
1031:
1029:
1026:
1024:
1021:
1019:
1016:
1014:
1011:
1009:
1006:
1004:
1001:
999:
996:
994:
991:
989:
986:
984:
981:
979:
976:
974:
971:
969:
966:
964:
961:
959:
956:
954:
951:
949:
946:
944:
941:
940:
938:
934:
929:
922:
917:
915:
910:
908:
903:
902:
899:
890:
884:
880:
875:
871:
866:
862:
857:
853:
847:
843:
842:U. S. Bombers
838:
834:
828:
824:
819:
808:
804:
799:
798:
783:
774:
767:
764:
760:
757:
752:
743:
741:
739:
729:
720:
718:
708:
699:
690:
681:
679:
677:
667:
663:
648:
645:
643:
640:
639:
638:
637:
636:Related lists
631:
628:
626:
623:
622:
621:
620:
614:
611:
610:
609:
608:
596:
593:
591:
587:
584:
583:
582:
579:
571:
568:
565:
562:
559:
556:
553:
552:Cruise speed:
550:
547:
544:
543:
542:
540:
532:
531:radial engine
529:
525:
522:
519:
516:
513:
512:Empty weight:
510:
507:
504:
501:
498:
495:
492:
489:
486:
483:
480:
479:
478:
476:
471:
470:
467:
456:
453:
452:
449:
448:United States
438:
437:
426:
425:
424:
423:
419:
416:
415:
409:
408:
407:
406:
402:
398:
395:
394:
388:
387:
386:
385:
381:
377:
373:
369:
366:
365:
359:
356:
355:
354:
353:
349:
345:
341:
338:
337:
333:
328:
319:
316:
312:
308:
298:
296:
292:
288:
284:
280:
276:
272:
267:
265:
261:
257:
253:
248:
246:
242:
239:
234:
232:
228:
224:
221:
217:
212:
210:
206:
202:
199:
196:
195:stressed skin
192:
188:
184:
180:
177:In May 1930,
172:
167:
158:
156:
152:
148:
145:
141:
131:
127:
124:13 April 1931
123:
119:
115:
111:
107:
103:
98:
94:
90:
87:
84:
80:
76:
72:
69:
66:
64:
60:
57:
54:
50:
45:
41:
36:
31:
19:
4982:Not assigned
4726:
4710:Wright Field
4192:
4114:Heavy bomber
4012:Light bomber
2605:
2545:
2400:
2255:
2250:
1537:Bird of Prey
1078:
878:
869:
860:
841:
822:
810:. Retrieved
806:
803:"Boeing B-9"
794:Bibliography
782:
773:
765:
751:
728:
707:
698:
689:
666:
635:
634:
630:Tupolev TB-3
618:
617:
606:
605:
594:
590:machine guns
585:
577:
575:
569:
563:
557:
551:
545:
538:
536:
523:
517:
511:
505:
499:
493:
487:
481:
474:
472:
468:
465:
464:
417:
396:
367:
339:
304:
270:
268:
255:
251:
249:
244:
240:
235:
213:
209:Keystone B-6
176:
139:
137:
121:First flight
105:Manufactured
92:Number built
82:Primary user
63:Manufacturer
18:Boeing Y1B-9
4559:(1935–1936)
4146:(1930–1962)
4005:(1924–1930)
3995:Tri-Service
1547:Phantom Ray
1542:Phantom Eye
1532:AFTI/F-111A
1474:Drones/UAVs
625:Martin B-10
539:Performance
524:Powerplant:
295:Martin B-10
140:Boeing YB-9
4994:Categories
2876:345-2/4/31
888:0930083172
851:0816891265
832:0851778046
653:References
506:Wing area:
233:was used.
227:bombardier
198:cantilever
1058:F/A-18E/F
658:Citations
494:Wingspan:
466:Data from
434:Operators
269:The five
201:monoplane
191:monocoque
187:mailplane
144:monoplane
108:1930–1933
3868:Missiles
3701:717 (II)
1657:Aircraft
1316:Trainers
759:Archived
602:See also
578:Armament
322:Variants
264:nacelles
205:biplanes
173:fighter.
4947:XPT-945
4937:XPT-943
4907:XBT-937
4897:XBT-935
4887:XPT-933
4877:XPT-931
4872:XPT-930
4797:XPT-915
4792:XPT-914
4787:XPT-913
4782:XPT-912
3997:systems
3914:Vessels
3726:Classic
3689:717 (I)
1486:CQM-121
1455:OC-135B
1072:Bombers
943:PW-9/FB
500:Height:
488:Length:
241:X-10633
129:Retired
100:History
4972:XB-950
4962:XP-948
4942:XP-944
4932:XC-942
4927:XC-941
4922:XP-940
4917:XO-939
4912:XP-938
4902:XP-936
4892:XP-934
4882:XO-932
4867:XP-929
4862:XC-928
4857:XP-927
4852:XO-926
4847:XP-925
4842:XO-924
4837:XP-923
4827:XB-921
4822:XC-920
4812:XC-918
4807:XB-917
4777:XO-911
4772:XC-910
4767:XC-909
4762:XB-908
4757:XB-907
4752:XB-906
4742:XP-904
4737:XP-903
4732:XP-902
4727:XB-901
4722:XP-900
4648:FB-111
4476:RB-57F
4471:RB-57D
4345:NB-36H
3630:853-21
2990:367-80
1649:Boeing
1552:Skyfox
1481:YQM-94
1465:WC-135
1460:RC-135
1450:NC-135
1394:EC-135
1343:XAT-15
1307:KC-767
1292:KC-137
1287:KC-135
1221:CC-137
1094:Y1B-20
1063:EA-18G
1038:F-15EX
928:Boeing
885:
848:
829:
812:7 July
595:Bombs:
558:Range:
445:
397:Y1B-9A
271:Y1B-9A
245:XB-901
179:Boeing
147:bomber
74:Status
68:Boeing
4657:Other
4643:FB-22
4576:BLR-3
4571:BLR-2
4566:BLR-1
4429:B-50C
4407:B-47C
4340:B-36G
4298:B-29D
4084:LB-14
4079:LB-13
4074:LB-12
4069:LB-11
4064:LB-10
3987:USAAF
3983:USAAC
3979:USAAS
3930:Other
3775:-4G4F
3765:-2G4B
3741:-800A
3736:-700W
1607:YAL-1
1511:MQ-28
1506:MQ-27
1501:MQ-25
1496:RQ-21
1491:MQ-18
1434:E-767
1399:EC-18
1338:PT-27
1333:PT-18
1328:PT-17
1323:PT-13
1302:KC-46
1297:KC-10
1282:KC-97
1277:KB-50
1272:KB-29
1256:CT-43
1241:VC-25
1226:YC-14
1216:C-137
1211:C-135
1195:C-108
1154:XB-59
1149:XB-56
1144:XB-55
1119:XB-44
1114:YB-40
1109:XB-39
1104:XB-38
1084:XB-15
1053:AV-8B
1043:YF-22
1033:F-15E
1023:XP-32
1008:XP-15
586:Guns:
482:Crew:
368:Y1B-9
252:Y1B-9
4664:B-21
4627:B-26
4622:B-20
4548:B-71
4543:B-70
4538:B-69
4533:B-68
4528:B-67
4523:B-66
4518:B-65
4513:B-64
4508:B-63
4503:B-62
4498:B-61
4493:B-60
4488:B-59
4483:B-58
4466:B-57
4461:B-56
4456:B-55
4451:B-54
4446:B-53
4441:B-52
4436:B-51
4424:B-50
4419:B-49
4414:B-48
4402:B-47
4397:B-46
4392:B-45
4387:B-44
4382:B-43
4377:B-42
4372:B-41
4367:B-40
4362:B-39
4357:B-38
4352:B-37
4335:B-36
4330:B-35
4325:B-34
4320:B-33
4315:B-32
4310:B-31
4305:B-30
4293:B-29
4288:B-28
4283:B-27
4278:B-26
4273:B-25
4268:B-24
4263:B-23
4258:B-22
4253:B-21
4248:B-20
4243:B-19
4238:B-18
4233:B-17
4228:B-16
4223:B-15
4218:B-14
4213:B-13
4208:B-12
4203:B-11
4198:B-10
4131:HB-3
4126:HB-2
4121:HB-1
4059:LB-9
4054:LB-8
4049:LB-7
4044:LB-6
4039:LB-5
4034:LB-4
4029:LB-3
4024:LB-2
4019:LB-1
3991:USAF
3823:2707
3794:-2G4
3770:-400
3721:-253
3682:-020
3670:2020
3665:2000
3660:1080
3655:1074
3650:1046
3645:1044
3640:1041
1694:6D/E
1602:X-53
1597:X-51
1592:X-50
1587:X-48
1582:X-45
1577:X-40
1572:X-37
1567:X-36
1562:X-32
1557:X-20
1516:X-50
1429:E-10
1384:XP3B
1379:XPBB
1353:T-45
1348:T-43
1251:C-40
1246:C-32
1236:C-22
1231:C-17
1190:C-98
1185:C-97
1180:C-75
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