311:
26:
333:
470:
142:
biplane. It was a conventional two-seat biplane of metal construction with fabric-covered wings and tail surfaces. The design was evaluated with a number of different engine installations and the type was ordered into production as the
1971:
1232:
1672:
1210:
733:
575:
500:
1665:
1981:
1991:
1658:
1203:
1623:
1157:
1147:
1142:
1132:
945:
726:
568:
1188:
544:
1196:
416:
1681:
1976:
719:
561:
1228:
1041:
1017:
902:
1224:
1067:
1013:
867:
345:
241:
123:
92:
1173:
1087:
1062:
1057:
1037:
882:
877:
872:
219:
203:
173:
163:
1602:
1597:
1027:
857:
454:
261:
1763:
1329:
1106:
1022:
1008:
966:
852:
792:
772:
767:
323:
96:
25:
1918:
1587:
1101:
1096:
1091:
930:
700:
251:
1798:
1778:
539:
John
Andrade, U.S.Military Aircraft Designations and Serials since 1909, Midland Counties Publications, 1979,
1072:
887:
34:
1873:
1127:
1122:
1077:
998:
812:
807:
802:
797:
777:
1828:
1808:
599:
1898:
1833:
1269:
1220:
782:
742:
675:
584:
285:
119:
74:
1868:
1838:
1733:
1582:
1554:
1499:
1489:
1888:
1843:
1748:
1903:
1863:
1708:
1703:
1628:
1618:
1577:
1479:
614:
604:
1878:
1858:
1823:
1509:
1444:
1384:
1259:
1032:
940:
862:
817:
680:
550:
The
Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 3000
359:
The
Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 3000
1986:
1908:
1848:
1768:
1753:
1082:
982:
961:
935:
847:
842:
837:
832:
762:
757:
665:
660:
655:
650:
645:
640:
635:
630:
540:
281:
271:
1713:
1559:
1524:
1504:
1152:
1003:
897:
822:
670:
609:
488:
183:
139:
1650:
1783:
1743:
1529:
1514:
925:
475:
193:
1913:
1883:
1738:
1693:
1549:
1494:
1439:
1374:
1334:
1324:
1319:
1309:
1304:
1299:
1249:
1965:
1793:
1723:
1539:
1464:
1424:
1419:
1394:
1137:
892:
787:
338:
38:
1933:
1544:
1519:
1484:
1474:
1459:
1434:
1399:
1364:
1943:
1893:
1818:
1728:
1698:
1534:
1469:
1414:
1404:
1389:
1379:
1369:
1354:
1314:
1289:
1284:
1279:
1274:
1264:
1254:
524:
316:
46:
1758:
1429:
1294:
465:
1592:
280:
A sesqui-plane conversion of the Y1O-33 with a 600 hp (450 kW)
711:
553:
298:
High-wing monoplane version of the Y1O-41, static test airframe only.
240:
O-19C with extended upper-span wing and a 575 hp (429 kW)
42:
234:
One O-19C converted as a VIP staff transport with dual controls.
1654:
1192:
715:
557:
162:
Improved version of the XO-6 with a 450 hp (340 kW)
202:
Service evaluation aircraft with a 500 hp (370 kW)
228:
O-19B with tailwheel, ring cowl and minor changes, 71 built.
222:
engine, two machine-guns and modified cockpit, 70 built.
212:
O-19 without the 88 US Gallon main fuel tank, one built.
147:
with a Pratt & Whitney R-1340-7 Wasp radial engine.
457:(one fixed forward-firing, one movable in rear cockpit)
270:
One O-19B re-engined with a 600 hp (450 kW)
182:
Similar to the XO-19 with a 600 hp (450 kW)
172:
Similar to the XO-19 with a 525 hp (391 kW)
1972:
1920s United States military reconnaissance aircraft
218:
Production version with a 450 hp (340 kW)
1611:
1568:
1240:
1166:
1115:
1050:
991:
975:
954:
918:
911:
750:
623:
592:
192:The XO-21 fitted with a 525 hp (391 kW)
186:engine, one built, later re-engined as the XO-21A.
118:was an American observation biplane built by the
274:engine and revised tail surfaces, one converted.
501:List of military aircraft of the United States
1666:
1204:
727:
569:
8:
1673:
1659:
1651:
1608:
1211:
1197:
1189:
915:
734:
720:
712:
576:
562:
554:
434:137 mph (220 km/h, 119 kn)
284:engine, one converted. Later modified by
517:
260:XO-19 with a 600 hp (450 kW)
419:radial piston engine , 450 hp (336 kW)
15:
7:
250:O-19 with 600 hp (450 kW)
385:39 ft 9 in (12.12 m)
397:348 sq ft (32.33 m)
391:10 ft 6 in (3.20 m)
379:28 ft 4 in (8.64 m)
14:
417:Pratt & Whitney R-1340-7 Wasp
254:engine, one built, one converted.
468:
331:
309:
24:
1982:Single-engined tractor aircraft
1:
440:20,500 ft (6,250 m)
409:3,800 lb (1,724 kg)
403:2,722 lb (1,235 kg)
242:Pratt & Whitney R-1340-15
50:
1992:Aircraft first flown in 1929
346:United States Army Air Corps
220:Pratt & Whitney R-1340-7
204:Pratt & Whitney R-1340-9
174:Pratt & Whitney R-1690-1
164:Pratt & Whitney R-1340-3
124:United States Army Air Corps
93:United States Army Air Corps
1684:project numbers (1930–1934)
2008:
262:Curtiss V-1570-1 Conqueror
1952:
1689:
1641:
324:Philippine Army Air Corps
138:was based on the earlier
97:Philippine Army Air Corps
32:
23:
18:
751:Manufacturer designation
252:Curtiss H-1640 Chieftain
33:An O-19 aircraft of the
364:General characteristics
292:and exported to Mexico.
35:2d Observation Squadron
352:Specifications (O-19B)
1977:Thomas-Morse aircraft
286:Consolidated Aircraft
120:Thomas-Morse Aircraft
1612:Related designations
1569:Tri-Service sequence
1241:USAAC/USAAF sequence
1221:observation aircraft
955:Observation aircraft
525:Designation systems
483:Related development
453:2 x 0.3in (7.62mm)
89:Primary users
63:Observation biplane
547:(Page 137 and 138)
264:engine, one built.
176:engine, one built.
166:engine, one built.
19:Thomas-Morse O-19
1959:
1958:
1648:
1647:
1637:
1636:
1186:
1185:
1182:
1181:
709:
708:
282:Curtiss V-1570-79
272:Curtiss V-1570-11
244:engine, 30 built.
116:Thomas-Morse O-19
112:
111:
1999:
1940:
1930:
1925:
1805:
1790:
1775:
1720:
1675:
1668:
1661:
1652:
1609:
1213:
1206:
1199:
1190:
916:
736:
729:
722:
713:
578:
571:
564:
555:
527:
522:
489:Thomas-Morse O-6
478:
473:
472:
471:
448:
438:Service ceiling:
427:
366:
337:
335:
334:
315:
313:
312:
184:Curtiss H-1640-1
140:Thomas-Morse O-6
122:Company for the
105:
65:Type of aircraft
55:
52:
28:
16:
2007:
2006:
2002:
2001:
2000:
1998:
1997:
1996:
1962:
1961:
1960:
1955:
1948:
1938:
1928:
1923:
1803:
1788:
1773:
1718:
1685:
1679:
1649:
1644:
1633:
1607:
1570:
1564:
1242:
1236:
1217:
1187:
1178:
1162:
1111:
1046:
987:
971:
950:
907:
746:
740:
710:
705:
619:
593:Thomas Brothers
588:
582:
531:
530:
523:
519:
509:
476:Aviation portal
474:
469:
467:
464:
449:
444:
423:
362:
354:
332:
330:
310:
308:
305:
194:Wright R-1750-1
156:
150:
132:
103:
95:
66:
53:
12:
11:
5:
2005:
2003:
1995:
1994:
1989:
1984:
1979:
1974:
1964:
1963:
1957:
1956:
1953:
1950:
1949:
1947:
1946:
1941:
1936:
1931:
1926:
1921:
1916:
1911:
1906:
1901:
1896:
1891:
1886:
1881:
1876:
1871:
1866:
1861:
1856:
1851:
1846:
1841:
1836:
1831:
1826:
1821:
1816:
1811:
1806:
1801:
1796:
1791:
1786:
1781:
1776:
1771:
1766:
1761:
1756:
1751:
1746:
1741:
1736:
1731:
1726:
1721:
1716:
1711:
1706:
1701:
1696:
1690:
1687:
1686:
1680:
1678:
1677:
1670:
1663:
1655:
1646:
1645:
1642:
1639:
1638:
1635:
1634:
1632:
1631:
1626:
1621:
1615:
1613:
1606:
1605:
1600:
1595:
1590:
1585:
1580:
1574:
1572:
1571:(1962–present)
1566:
1565:
1563:
1562:
1557:
1552:
1547:
1542:
1537:
1532:
1527:
1522:
1517:
1512:
1507:
1502:
1497:
1492:
1487:
1482:
1477:
1472:
1467:
1462:
1457:
1452:
1447:
1442:
1437:
1432:
1427:
1422:
1417:
1412:
1407:
1402:
1397:
1392:
1387:
1382:
1377:
1372:
1367:
1362:
1357:
1352:
1347:
1342:
1337:
1332:
1327:
1322:
1317:
1312:
1307:
1302:
1297:
1292:
1287:
1282:
1277:
1272:
1267:
1262:
1257:
1252:
1246:
1244:
1238:
1237:
1223:designations,
1219:United States
1218:
1216:
1215:
1208:
1201:
1193:
1184:
1183:
1180:
1179:
1177:
1176:
1170:
1168:
1167:Reconnaissance
1164:
1163:
1161:
1160:
1158:Liberator C.IX
1155:
1150:
1145:
1140:
1135:
1130:
1125:
1119:
1117:
1113:
1112:
1110:
1109:
1104:
1102:Liberator GR.I
1099:
1094:
1085:
1080:
1075:
1070:
1065:
1060:
1054:
1052:
1048:
1047:
1045:
1044:
1035:
1030:
1025:
1020:
1011:
1006:
1001:
995:
993:
989:
988:
986:
985:
979:
977:
973:
972:
970:
969:
964:
958:
956:
952:
951:
949:
948:
943:
938:
933:
928:
922:
920:
913:
909:
908:
906:
905:
900:
895:
890:
885:
880:
875:
870:
865:
860:
855:
850:
845:
840:
835:
830:
825:
820:
815:
810:
805:
800:
795:
790:
785:
780:
775:
770:
765:
760:
754:
752:
748:
747:
741:
739:
738:
731:
724:
716:
707:
706:
704:
703:
698:
693:
688:
683:
678:
673:
668:
663:
658:
653:
648:
643:
638:
633:
627:
625:
621:
620:
618:
617:
612:
607:
602:
596:
594:
590:
589:
583:
581:
580:
573:
566:
558:
552:
551:
548:
536:
535:
529:
528:
516:
515:
514:
513:
508:
505:
504:
503:
492:
491:
480:
479:
463:
460:
459:
458:
442:
441:
435:
432:Maximum speed:
421:
420:
410:
404:
398:
392:
386:
380:
374:
353:
350:
349:
348:
342:
341:
327:
326:
320:
319:
304:
301:
300:
299:
296:
293:
278:
275:
268:
265:
258:
255:
248:
245:
238:
235:
232:
229:
226:
223:
216:
213:
210:
207:
200:
197:
190:
187:
180:
177:
170:
167:
160:
155:
152:
131:
128:
110:
109:
106:
100:
99:
90:
86:
85:
82:
78:
77:
72:
68:
67:
64:
61:
57:
56:
30:
29:
21:
20:
13:
10:
9:
6:
4:
3:
2:
2004:
1993:
1990:
1988:
1985:
1983:
1980:
1978:
1975:
1973:
1970:
1969:
1967:
1951:
1945:
1942:
1937:
1935:
1932:
1927:
1922:
1920:
1917:
1915:
1912:
1910:
1907:
1905:
1902:
1900:
1897:
1895:
1892:
1890:
1887:
1885:
1882:
1880:
1877:
1875:
1872:
1870:
1867:
1865:
1862:
1860:
1857:
1855:
1852:
1850:
1847:
1845:
1842:
1840:
1837:
1835:
1832:
1830:
1827:
1825:
1822:
1820:
1817:
1815:
1812:
1810:
1807:
1802:
1800:
1797:
1795:
1792:
1787:
1785:
1782:
1780:
1777:
1772:
1770:
1767:
1765:
1762:
1760:
1757:
1755:
1752:
1750:
1747:
1745:
1742:
1740:
1737:
1735:
1732:
1730:
1727:
1725:
1722:
1717:
1715:
1712:
1710:
1707:
1705:
1702:
1700:
1697:
1695:
1692:
1691:
1688:
1683:
1676:
1671:
1669:
1664:
1662:
1657:
1656:
1653:
1640:
1630:
1627:
1625:
1622:
1620:
1617:
1616:
1614:
1610:
1604:
1601:
1599:
1596:
1594:
1591:
1589:
1586:
1584:
1581:
1579:
1576:
1575:
1573:
1567:
1561:
1558:
1556:
1553:
1551:
1548:
1546:
1543:
1541:
1538:
1536:
1533:
1531:
1528:
1526:
1523:
1521:
1518:
1516:
1513:
1511:
1508:
1506:
1503:
1501:
1498:
1496:
1493:
1491:
1488:
1486:
1483:
1481:
1478:
1476:
1473:
1471:
1468:
1466:
1463:
1461:
1458:
1456:
1453:
1451:
1448:
1446:
1443:
1441:
1438:
1436:
1433:
1431:
1428:
1426:
1423:
1421:
1418:
1416:
1413:
1411:
1408:
1406:
1403:
1401:
1398:
1396:
1393:
1391:
1388:
1386:
1383:
1381:
1378:
1376:
1373:
1371:
1368:
1366:
1363:
1361:
1358:
1356:
1353:
1351:
1348:
1346:
1343:
1341:
1338:
1336:
1333:
1331:
1328:
1326:
1323:
1321:
1318:
1316:
1313:
1311:
1308:
1306:
1303:
1301:
1298:
1296:
1293:
1291:
1288:
1286:
1283:
1281:
1278:
1276:
1273:
1271:
1268:
1266:
1263:
1261:
1258:
1256:
1253:
1251:
1248:
1247:
1245:
1239:
1234:
1230:
1226:
1222:
1214:
1209:
1207:
1202:
1200:
1195:
1194:
1191:
1175:
1172:
1171:
1169:
1165:
1159:
1156:
1154:
1151:
1149:
1146:
1144:
1141:
1139:
1136:
1134:
1131:
1129:
1126:
1124:
1121:
1120:
1118:
1114:
1108:
1105:
1103:
1100:
1098:
1097:Liberator B.I
1095:
1093:
1089:
1086:
1084:
1081:
1079:
1076:
1074:
1071:
1069:
1066:
1064:
1061:
1059:
1056:
1055:
1053:
1049:
1043:
1039:
1036:
1034:
1031:
1029:
1026:
1024:
1021:
1019:
1015:
1012:
1010:
1007:
1005:
1002:
1000:
997:
996:
994:
990:
984:
981:
980:
978:
974:
968:
965:
963:
960:
959:
957:
953:
947:
944:
942:
939:
937:
934:
932:
929:
927:
924:
923:
921:
917:
914:
910:
904:
901:
899:
896:
894:
891:
889:
886:
884:
881:
879:
876:
874:
871:
869:
866:
864:
861:
859:
856:
854:
851:
849:
846:
844:
841:
839:
836:
834:
831:
829:
826:
824:
821:
819:
816:
814:
811:
809:
806:
804:
801:
799:
796:
794:
791:
789:
786:
784:
781:
779:
776:
774:
771:
769:
766:
764:
761:
759:
756:
755:
753:
749:
744:
737:
732:
730:
725:
723:
718:
717:
714:
702:
699:
697:
694:
692:
689:
687:
684:
682:
679:
677:
674:
672:
669:
667:
664:
662:
659:
657:
654:
652:
649:
647:
644:
642:
639:
637:
634:
632:
629:
628:
626:
622:
616:
613:
611:
608:
606:
603:
601:
598:
597:
595:
591:
586:
579:
574:
572:
567:
565:
560:
559:
556:
549:
546:
545:0-904597-22-9
542:
538:
537:
533:
532:
526:
521:
518:
511:
510:
506:
502:
499:
498:
497:
496:
495:Related lists
490:
487:
486:
485:
484:
477:
466:
461:
456:
452:
451:
450:
447:
439:
436:
433:
430:
429:
428:
426:
418:
414:
411:
408:
407:Gross weight:
405:
402:
401:Empty weight:
399:
396:
393:
390:
387:
384:
381:
378:
375:
372:
369:
368:
367:
365:
360:
358:
351:
347:
344:
343:
340:
339:United States
329:
328:
325:
322:
321:
318:
307:
306:
302:
297:
294:
291:
287:
283:
279:
276:
273:
269:
266:
263:
259:
256:
253:
249:
246:
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81:Introduction
80:
79:
76:
73:
71:Manufacturer
70:
69:
62:
59:
58:
48:
44:
40:
39:Nichols Field
36:
31:
27:
22:
17:
1954:Not assigned
1853:
1813:
1682:Wright Field
1454:
1449:
1409:
1359:
1349:
1344:
1339:
827:
743:Consolidated
695:
690:
685:
624:Thomas-Morse
585:Thomas-Morse
534:Bibliography
520:
494:
493:
482:
481:
455:machine-guns
445:
443:
437:
431:
424:
422:
412:
406:
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394:
388:
382:
376:
370:
363:
361:
356:
355:
289:
206:, two built.
149:
144:
135:
133:
115:
113:
104:Number built
75:Thomas-Morse
1643:Unconfirmed
1243:(1924–1942)
1233:Tri-Service
701:XP-13 Viper
425:Performance
413:Powerplant:
317:Philippines
130:Development
54: 1932
47:Philippines
1966:Categories
1116:Transports
507:References
395:Wing area:
383:Wingspan:
357:Data from
303:Operators
288:as their
1987:Biplanes
976:Fighters
919:Trainers
745:aircraft
587:aircraft
462:See also
446:Armament
290:Model 23
154:Variants
1919:XPT-945
1909:XPT-943
1879:XBT-937
1869:XBT-935
1859:XPT-933
1849:XPT-931
1844:XPT-930
1769:XPT-915
1764:XPT-914
1759:XPT-913
1754:XPT-912
1235:systems
1051:Bombers
912:By role
389:Height:
377:Length:
196:engine.
1944:XB-950
1934:XP-948
1914:XP-944
1904:XC-942
1899:XC-941
1894:XP-940
1889:XO-939
1884:XP-938
1874:XP-936
1864:XP-934
1854:XO-932
1839:XP-929
1834:XC-928
1829:XP-927
1824:XO-926
1819:XP-925
1814:XO-924
1809:XP-923
1799:XB-921
1794:XC-920
1784:XC-918
1779:XB-917
1749:XO-911
1744:XC-910
1739:XC-909
1734:XB-908
1729:XB-907
1724:XB-906
1714:XP-904
1709:XP-903
1704:XP-902
1699:XB-901
1694:XP-900
1088:LB-30A
1038:PB4Y-1
1014:XP4Y-1
992:Patrol
696:Y1O-42
691:Y1O-41
543:
336:
314:
295:Y1O-42
277:Y1O-41
267:Y1O-33
189:XO-21A
1629:OV-12
1624:OV-10
1229:USAAF
1225:USAAC
1143:C-109
1138:XC-99
1068:XB-41
1033:XPB3Y
1018:P4Y-2
946:AT-22
941:PT-11
681:TM-24
676:TM-23
666:MB-10
512:Notes
371:Crew:
257:YO-23
237:O-19E
231:O-19D
225:O-19C
215:O-19B
209:O-19A
179:XO-21
169:YO-20
159:XO-19
145:O-19B
84:1929
60:Role
43:Luzon
1619:OV-1
1560:O-63
1555:O-62
1550:O-61
1545:O-60
1540:O-59
1535:O-58
1530:O-57
1525:O-56
1520:O-55
1515:O-54
1510:O-53
1505:O-52
1500:O-51
1495:O-50
1490:O-49
1485:O-48
1480:O-47
1475:O-46
1470:O-45
1465:O-44
1460:O-43
1455:O-42
1450:O-41
1445:O-40
1440:O-39
1435:O-38
1430:O-37
1425:O-36
1420:O-35
1415:O-34
1410:O-33
1405:O-32
1400:O-31
1395:O-30
1390:O-29
1385:O-28
1380:O-27
1375:O-26
1370:O-25
1365:O-24
1360:O-23
1355:O-22
1350:O-21
1345:O-20
1340:O-19
1335:O-18
1330:O-17
1325:O-16
1320:O-15
1315:O-14
1310:O-13
1305:O-12
1300:O-11
1295:O-10
1231:and
1133:C-87
1128:C-22
1123:C-11
1083:XB2Y
1073:B-36
1063:B-32
1058:B-24
1028:PB2Y
983:P-30
967:O-17
962:OA-6
936:PT-2
931:PT-1
686:O-19
661:MB-9
656:MB-7
651:MB-6
646:MB-4
641:MB-3
636:MB-2
631:MB-1
615:SH-4
541:ISBN
415:1 ×
247:O-21
199:O-19
136:O-19
134:The
114:The
108:176
1939:949
1929:947
1924:946
1804:922
1789:919
1774:916
1719:905
1603:O-6
1598:O-5
1593:O-4
1588:O-3
1583:O-2
1578:O-1
1290:O-9
1285:O-8
1280:O-7
1275:O-6
1270:O-5
1265:O-4
1260:O-3
1255:O-2
1250:O-1
1174:F-7
1153:R2Y
1107:TBY
1023:PBY
1009:P3Y
1004:P2Y
610:S-4
605:T-2
600:D-5
373:two
37:at
1968::
1148:RY
1078:BY
1042:-2
999:PY
926:NY
903:40
898:39
893:37
888:36
883:34
878:33
873:32
868:31
863:30
858:29
853:28
848:27
843:26
838:25
833:24
828:23
823:22
818:21
813:20
808:18
803:17
798:16
793:15
788:14
783:10
671:R5
126:.
51:c.
49:,
45:,
41:,
1674:e
1667:t
1660:v
1227:/
1212:e
1205:t
1198:v
1092:B
1090:/
1040:/
1016:/
778:9
773:8
768:7
763:2
758:1
735:e
728:t
721:v
577:e
570:t
563:v
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