29:
144:
with the V-22. This design was to have a maximum takeoff weight of 100,000 lb (45,000 kg) with a payload of up to 25,000 lb (11,000 kg) in a hover. The design was downsized to be more V-22-based and to have a payload of 18,000 to 20,000 lb (8,200 to 9,100 kg). This version was referred to as "V-44". Bell received contracts to study related technologies in 2000. Development was not pursued by the US Department of
Defense.
151:. This effort was initially funded by NASA/AFDD and subsequently by Bell. An experimental investigation in helicopter mode with ground effect found that it was possible to reduce the download on the aircraft from 10% of the total thrust to an upload of 10% of the thrust. A parallel Computational Fluid Dynamics (CFD) study confirmed these findings.
223:
specifications. JHL became part of the new US Air Force/Army Joint Future
Theater Lift (JFTL) program in 2008. In mid-2010, the US DoD was formulating a vertical lift aircraft plan with JFTL as a part. The DoD also requested information from the aerospace industry on technologies for JFTL in October 2010.
211:
Besides the research performed jointly under the contract, Bell has funded additional research and wind tunnel testing in cooperation with NASA and the Army. After submission of initial concept study reports, testing of full-scale components and possibly a sub-scale vehicle test program was expected
243:
In addition, the Bell-Boeing team included eight possible variants, or "excursion designs", including a sea-based variant. The design team planned on payloads ranging from 16 to 26 tons and a range of 420 to 1,000 nautical miles (780 to 1,850 km). One of the design excursions explored, dubbed
207:
effects on the aft wing of the forward wing's rotors and establish a baseline aircraft configuration. Alan Ewing, Bell's QTR program manager, reported that "Testing showed those loads from that vortex on the rear rotor same as the loads we see on the front ," and "Aeroelastic stability of the wing
143:
tiltrotor concept in 1979. The Bell Boeing team disclosed a Quad TiltRotor design in 1999 which the companies had been investigating during the previous two years. The design was for a C-130-size V/STOL transport for the US Army's Future
Transport Rotorcraft program and would have 50% commonality
222:
caused their weight to increase from 20 tons to 27 tons, requiring a larger aircraft. In mid-2008, the U.S. Army continued the Joint Heavy Lift (JHL) studies with new contracts to the Bell-Boeing and Karem
Aircraft/Lockheed Martin teams. The teams were to modify their designs to reach new JHL
235:
aircraft with V-22 type engines and 50-foot (15 m) rotors at each of the four wing tips. The C-130-size fuselage would have a 747-inch (19.0 m) cargo bay with a rear loading ramp that could carry 110 paratroopers or 150 standard-seating passengers. In cargo configuration, it would
163:
3.45 million from the U.S. Army's
Aviation Applied Technology Directorate for an 18-month conceptual design and analysis study lasting through March 2007, in conjunction with the Joint Heavy Lift program. The contract was awarded to Bell Helicopter, which is teaming with Boeing's
589:
199:
during summer 2006. The "semi-span" model (representing the starboard half of the aircraft) measured 213 inches in length and had powered 91-inch rotors, operational nacelles, and "dynamically representative" wings.
175:
During the initial baseline design study, Bell's engineers were designing the wing, engine and rotor, while the Boeing team was designing the fuselage and internal systems. A similar arrangement is used on the
629:
552:
586:
208:
looks exactly the same as the conventional tiltrotor". These tests used a model with a three-bladed rotor, future tests will explore the effects of using a four-bladed system.
703:
2464:
244:
the "Big Boy", would have 55-foot (17 m) rotors and an 815-inch (20.7 m) cargo bay, making it able to carry one additional 463L pallet and accommodate a
626:
463:
549:
342:
645:
850:
683:
308:
494:
219:
610:
529:
388:
444:
1714:
1704:
1684:
1674:
1664:
1644:
1369:
1272:
1267:
1262:
1257:
1252:
1247:
1242:
1237:
1232:
1222:
1217:
1197:
1192:
1182:
1167:
1152:
1142:
1117:
1087:
1027:
1022:
1017:
995:
940:
735:
693:
240:. This baseline version includes a fully retractable refueling probe and an interconnecting drive system for power redundancy.
215:
The study was completed in May 2007, with the Quad TiltRotor selected for further development. However, additional armor on
148:
373:
111:
188:
425:
2459:
2286:
2093:
665:
2175:
168:. The QTR study is one of five designs; one of the five is also a Boeing program, an advanced version of the
410:"An Experimental Investigation of Ground Effect on a Quad Tilt Rotor in Hover and Low Speed Forward Flight"
713:
147:
From 2000 to 2006, studies of the aerodynamics and performance of a Quad Tilt Rotor were conducted at the
2474:
728:
460:
339:
47:
1127:
573:
678:
2346:
2052:
1162:
627:
Joint Future
Theatre Lift (JFTL) Technology Study (JTS) Capability Request for Information (CRFI)
491:
409:
274:
212:
to begin. Pending approval, first flight of a full-scale prototype aircraft was slated for 2012.
196:
177:
103:
86:
2454:
1227:
721:
526:
385:
54:
441:
2321:
2291:
2031:
2021:
1614:
1544:
1177:
313:
216:
2396:
2381:
2376:
2361:
1904:
1847:
1834:
1317:
1207:
262:
165:
160:
119:
8:
2469:
2416:
2401:
2326:
2261:
2256:
2251:
2246:
2241:
2119:
2109:
2057:
2036:
1931:
1787:
1782:
1777:
1772:
1767:
1624:
1584:
1559:
1459:
1037:
990:
980:
970:
955:
950:
945:
930:
925:
905:
895:
890:
885:
880:
875:
865:
845:
835:
830:
825:
820:
815:
810:
805:
800:
795:
790:
785:
780:
775:
765:
296:
2331:
2311:
2296:
1899:
1859:
1439:
1337:
115:
2306:
1869:
1449:
770:
661:
340:"Diversity in Design: Boeing offers 2 of 5 development options in rotorcraft program"
514:
2426:
2421:
2411:
2406:
2386:
2336:
2062:
1921:
1909:
1852:
1604:
1469:
423:"Quad Tilt Rotor Simulations in Helicopter Mode using Computational Fluid Dynamics"
279:
126:, cruise at 250 knots, and land at unimproved sites vertically like a helicopter.
2371:
2356:
2301:
2271:
2155:
1952:
1892:
1887:
1842:
1746:
1419:
1327:
1202:
1067:
1057:
1005:
633:
593:
556:
533:
498:
467:
448:
429:
392:
346:
107:
59:
2281:
2072:
2067:
1734:
1724:
1694:
1092:
1047:
204:
123:
2448:
2135:
1212:
1187:
1172:
1147:
1137:
1132:
1102:
1097:
1082:
1052:
744:
169:
2366:
2276:
1926:
1916:
704:"US Army looking at three configuration concepts for large cargo rotorcraft"
2165:
2001:
1996:
1974:
1964:
1959:
1409:
1399:
1332:
1322:
1307:
1302:
748:
743:
422:
257:
28:
159:
In
September 2005, Bell and Boeing received a cost-sharing contract worth
2210:
2150:
1864:
1741:
1484:
442:"Boeing receives two study contracts from U.S. Army for Joint Heavy Lift"
237:
232:
184:
2391:
2225:
2215:
2160:
1989:
1802:
1797:
1751:
1429:
1357:
1042:
965:
935:
920:
870:
860:
855:
840:
187:
model has undergone testing in the
Transonic Dynamics Tunnel (a unique
140:
99:
2220:
2205:
2200:
2195:
2170:
1818:
1792:
1282:
1112:
1107:
1012:
975:
960:
900:
550:"Heavy duty: US Army backs tiltrotor as future battlefield airlifter"
374:"On the Vertical Horizon: Bell Designs Are Accelerating at Full Tilt"
291:
2341:
2316:
2266:
2190:
2185:
2180:
2145:
2140:
2114:
2026:
2016:
2011:
2006:
1984:
1979:
1969:
1634:
1549:
1534:
1524:
1499:
1474:
1352:
1342:
1312:
1287:
1077:
1072:
1062:
1032:
985:
122:
program). It would have a cargo capacity roughly equivalent to the
1947:
1654:
1000:
910:
684:"CH-53X HLR & JHL: Future Heli Programs on Collision Course?"
245:
492:"Bell-Boeing Quadtiltrotor completes first wind tunnel testing"
63:
527:"Wind Tunnel testing completed on Bell Boeing quad tiltrotor"
515:"Wind Tunnel testing completed on Bell Boeing quad tiltrotor"
192:
646:"Joint Future Theater Lift (JFTL) Technology Study (JTS)"
658:
Bell Boeing V-22 Osprey, Tiltrotor
Tactical Transport
694:"Bell and Boeing working on quad tilt-rotor design"
286:
Aircraft of comparable role, configuration, and era
461:"Bell-Boeing's QTR selected for Heavy Lift study"
16:Proposed four-rotor derivative of the V-22 Osprey
2446:
2465:Proposed military aircraft of the United States
309:List of military aircraft of the United States
729:
679:Quad Tiltrotor QTR page on GlobalSecurity.org
520:
359:
357:
355:
203:The primary test objective was to study the
154:
736:
722:
611:"Pentagon Sheds Some Light on JFTL Effort"
408:Radhakrishnan, Anand and Fredric Schmitz.
349:. Boeing Frontiers magazine, January 2007.
352:
335:
333:
331:
329:
587:"U.S. Army Extends JHL Concept Studies"
508:
231:The conceptual design featured a large
2447:
454:
435:
326:
717:
574:"USAF, Army Merge Heavy-Lift Efforts"
486:
484:
482:
480:
478:
476:
636:. USAF via fbo.gov, 20 October 2010.
149:University of Maryland, College Park
139:Bell developed its model D-322 as a
118:Joint Heavy Lift program (a part of
114:. The concept is a contender in the
415:
386:V-44: Pentagon's Next Air Transport
13:
473:
402:
14:
2486:
672:
576:. Defensenews.com, 14 April 2008.
648:. US Air Force, 20 October 2010.
517:. Helis.com, September 13, 2006.
27:
639:
620:
603:
579:
566:
543:
432:. University of Maryland, 2005.
412:. University of Maryland, 2006.
379:
366:
129:
1:
319:
134:
749:Bell Helicopter/Bell Textron
660:. Midland Publishing, 2004.
470:. Boeing, 22 September 2005.
451:. Boeing, 23 September 2005.
7:
251:
10:
2491:
2103:Non-production helicopters
96:Bell Boeing Quad TiltRotor
33:Quad Tiltrotor art concept
2435:
2234:
2128:
2102:
2086:
2045:
1940:
1878:
1827:
1811:
1760:
756:
532:January 31, 2007, at the
447:February 3, 2007, at the
226:
82:
77:
69:
53:
43:
38:
26:
21:
2460:Boeing military aircraft
248:armored combat vehicle.
155:Joint Heavy Lift studies
275:Bell Boeing V-22 Osprey
197:Langley Research Center
104:Bell Boeing V-22 Osprey
87:Bell Boeing V-22 Osprey
1941:Commercial helicopters
688:Defense Industry Daily
540:, p. 14, October 2006.
220:manned ground vehicles
2129:Experimental aircraft
314:List of VTOL aircraft
217:Future Combat Systems
189:transonic wind tunnel
106:developed jointly by
2437:Unknown/not assigned
708:Flight International
690:, 27 September 2005.
561:Flight International
391:May 2, 2006, at the
263:Future Vertical Lift
120:Future Vertical Lift
98:(QTR) is a proposed
1881:utility helicopters
698:Dallas Morning News
363:Norton 2004, p. 86.
297:Curtiss-Wright X-19
269:Related development
39:General information
2475:Tiltrotor aircraft
1828:Attack helicopters
632:2011-09-28 at the
592:2011-08-12 at the
563:, 14 January 2008.
555:2008-01-17 at the
505:, 13 October 2006.
497:2007-09-30 at the
466:2006-08-30 at the
428:2012-03-25 at the
372:Hirschberg, Mike.
345:2022-12-10 at the
236:accommodate eight
183:A one-fifth-scale
102:derivative of the
2442:
2441:
2392:Super Transporter
710:, 9 October 2007.
700:, 24 August 2006.
585:Warwick, Graham.
399:, September 2000.
397:Popular Mechanics
92:
91:
2482:
1761:Fighter aircraft
1731:
1721:
1711:
1701:
1691:
1681:
1671:
1661:
1651:
1641:
1631:
1621:
1611:
1601:
1596:
1591:
1581:
1576:
1571:
1566:
1556:
1541:
1531:
1521:
1516:
1511:
1506:
1496:
1491:
1481:
1466:
1456:
1446:
1436:
1426:
1416:
1406:
1396:
1391:
1386:
1381:
1376:
1366:
1349:
1299:
1294:
1279:
1159:
1124:
917:
738:
731:
724:
715:
714:
649:
643:
637:
624:
618:
607:
601:
583:
577:
570:
564:
547:
541:
524:
518:
512:
506:
488:
471:
458:
452:
439:
433:
419:
413:
406:
400:
383:
377:
370:
364:
361:
350:
337:
280:Bell V-280 Valor
31:
19:
18:
2490:
2489:
2485:
2484:
2483:
2481:
2480:
2479:
2445:
2444:
2443:
2438:
2431:
2230:
2124:
2098:
2082:
2041:
1936:
1880:
1879:Observation and
1874:
1823:
1807:
1756:
1729:
1719:
1709:
1699:
1689:
1679:
1669:
1659:
1649:
1639:
1629:
1619:
1609:
1599:
1594:
1589:
1579:
1574:
1569:
1564:
1554:
1539:
1529:
1519:
1514:
1509:
1504:
1494:
1489:
1479:
1464:
1454:
1444:
1434:
1424:
1414:
1404:
1394:
1389:
1384:
1379:
1374:
1364:
1347:
1297:
1292:
1277:
1157:
1122:
915:
758:
752:
742:
675:
653:
652:
644:
640:
634:Wayback Machine
625:
621:
617:, 15 July 2010.
609:Brannen, Kate.
608:
604:
594:Wayback Machine
584:
580:
571:
567:
557:Wayback Machine
548:
544:
534:Wayback Machine
525:
521:
513:
509:
499:Wayback Machine
489:
474:
468:Wayback Machine
459:
455:
449:Wayback Machine
440:
436:
430:Wayback Machine
420:
416:
407:
403:
393:Wayback Machine
384:
380:
371:
367:
362:
353:
347:Wayback Machine
338:
327:
322:
254:
229:
157:
137:
132:
108:Bell Helicopter
48:Cargo tiltrotor
34:
17:
12:
11:
5:
2488:
2478:
2477:
2472:
2467:
2462:
2457:
2440:
2439:
2436:
2433:
2432:
2430:
2429:
2424:
2419:
2414:
2409:
2404:
2399:
2394:
2389:
2384:
2379:
2374:
2369:
2364:
2359:
2354:
2352:Quad TiltRotor
2349:
2344:
2339:
2334:
2329:
2324:
2319:
2314:
2309:
2304:
2299:
2294:
2289:
2284:
2279:
2274:
2269:
2264:
2259:
2254:
2249:
2244:
2238:
2236:
2232:
2231:
2229:
2228:
2223:
2218:
2213:
2208:
2203:
2198:
2193:
2188:
2183:
2178:
2173:
2168:
2163:
2158:
2153:
2148:
2143:
2138:
2132:
2130:
2126:
2125:
2123:
2122:
2117:
2112:
2106:
2104:
2100:
2099:
2097:
2096:
2090:
2088:
2084:
2083:
2081:
2080:
2075:
2070:
2065:
2060:
2055:
2049:
2047:
2043:
2042:
2040:
2039:
2034:
2029:
2024:
2019:
2014:
2009:
2004:
1999:
1994:
1993:
1992:
1982:
1977:
1972:
1967:
1962:
1957:
1956:
1955:
1944:
1942:
1938:
1937:
1935:
1934:
1929:
1924:
1919:
1914:
1913:
1912:
1907:
1897:
1896:
1895:
1884:
1882:
1876:
1875:
1873:
1872:
1867:
1862:
1857:
1856:
1855:
1850:
1845:
1837:
1831:
1829:
1825:
1824:
1822:
1821:
1815:
1813:
1809:
1808:
1806:
1805:
1800:
1795:
1790:
1785:
1780:
1775:
1770:
1764:
1762:
1758:
1757:
1755:
1754:
1749:
1744:
1738:
1737:
1732:
1727:
1722:
1717:
1712:
1707:
1702:
1697:
1692:
1687:
1682:
1677:
1672:
1667:
1662:
1657:
1652:
1647:
1642:
1637:
1632:
1627:
1622:
1617:
1612:
1607:
1602:
1597:
1592:
1587:
1582:
1577:
1572:
1567:
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:
1361:
1360:
1350:
1345:
1340:
1335:
1330:
1325:
1320:
1315:
1310:
1305:
1300:
1295:
1290:
1285:
1280:
1275:
1270:
1265:
1260:
1255:
1250:
1245:
1240:
1235:
1230:
1225:
1220:
1215:
1210:
1205:
1200:
1195:
1190:
1185:
1180:
1175:
1170:
1165:
1160:
1155:
1150:
1145:
1140:
1135:
1130:
1125:
1120:
1115:
1110:
1105:
1100:
1095:
1090:
1085:
1080:
1075:
1070:
1065:
1060:
1055:
1050:
1045:
1040:
1035:
1030:
1025:
1020:
1015:
1010:
1009:
1008:
998:
993:
988:
983:
978:
973:
968:
963:
958:
953:
948:
943:
938:
933:
928:
923:
918:
913:
908:
903:
898:
893:
888:
883:
878:
873:
868:
863:
858:
853:
848:
843:
838:
833:
828:
823:
818:
813:
808:
803:
798:
793:
788:
783:
778:
773:
768:
762:
760:
754:
753:
741:
740:
733:
726:
718:
712:
711:
701:
691:
681:
674:
673:External links
671:
670:
669:
656:Norton, Bill.
651:
650:
638:
619:
602:
600:, 1 July 2008.
578:
572:Osborn, Kris.
565:
542:
519:
507:
472:
453:
434:
421:Gupta, Vinit.
414:
401:
378:
365:
351:
324:
323:
321:
318:
317:
316:
311:
300:
299:
294:
283:
282:
277:
266:
265:
260:
253:
250:
228:
225:
156:
153:
136:
133:
131:
128:
124:C-130 Hercules
90:
89:
84:
83:Developed from
80:
79:
75:
74:
71:
67:
66:
57:
51:
50:
45:
41:
40:
36:
35:
32:
24:
23:
22:Quad TiltRotor
15:
9:
6:
4:
3:
2:
2487:
2476:
2473:
2471:
2468:
2466:
2463:
2461:
2458:
2456:
2455:Bell aircraft
2453:
2452:
2450:
2434:
2428:
2425:
2423:
2420:
2418:
2415:
2413:
2410:
2408:
2405:
2403:
2400:
2398:
2395:
2393:
2390:
2388:
2385:
2383:
2380:
2378:
2375:
2373:
2370:
2368:
2365:
2363:
2360:
2358:
2355:
2353:
2350:
2348:
2345:
2343:
2340:
2338:
2335:
2333:
2330:
2328:
2325:
2323:
2320:
2318:
2315:
2313:
2310:
2308:
2305:
2303:
2300:
2298:
2295:
2293:
2290:
2288:
2285:
2283:
2280:
2278:
2275:
2273:
2270:
2268:
2265:
2263:
2260:
2258:
2255:
2253:
2250:
2248:
2245:
2243:
2240:
2239:
2237:
2233:
2227:
2224:
2222:
2219:
2217:
2214:
2212:
2209:
2207:
2204:
2202:
2199:
2197:
2194:
2192:
2189:
2187:
2184:
2182:
2179:
2177:
2174:
2172:
2169:
2167:
2164:
2162:
2159:
2157:
2154:
2152:
2149:
2147:
2144:
2142:
2139:
2137:
2134:
2133:
2131:
2127:
2121:
2118:
2116:
2113:
2111:
2108:
2107:
2105:
2101:
2095:
2092:
2091:
2089:
2085:
2079:
2076:
2074:
2071:
2069:
2066:
2064:
2061:
2059:
2056:
2054:
2051:
2050:
2048:
2044:
2038:
2035:
2033:
2030:
2028:
2025:
2023:
2020:
2018:
2015:
2013:
2010:
2008:
2005:
2003:
2000:
1998:
1995:
1991:
1988:
1987:
1986:
1983:
1981:
1978:
1976:
1973:
1971:
1968:
1966:
1963:
1961:
1958:
1954:
1951:
1950:
1949:
1946:
1945:
1943:
1939:
1933:
1930:
1928:
1925:
1923:
1920:
1918:
1915:
1911:
1908:
1906:
1903:
1902:
1901:
1898:
1894:
1891:
1890:
1889:
1886:
1885:
1883:
1877:
1871:
1868:
1866:
1863:
1861:
1858:
1854:
1851:
1849:
1846:
1844:
1841:
1840:
1838:
1836:
1833:
1832:
1830:
1826:
1820:
1817:
1816:
1814:
1812:Target drones
1810:
1804:
1801:
1799:
1796:
1794:
1791:
1789:
1786:
1784:
1781:
1779:
1776:
1774:
1771:
1769:
1766:
1765:
1763:
1759:
1753:
1750:
1748:
1745:
1743:
1740:
1739:
1736:
1733:
1728:
1726:
1723:
1718:
1716:
1713:
1708:
1706:
1703:
1698:
1696:
1693:
1688:
1686:
1683:
1678:
1676:
1673:
1668:
1666:
1663:
1658:
1656:
1653:
1648:
1646:
1643:
1638:
1636:
1633:
1628:
1626:
1623:
1618:
1616:
1613:
1608:
1606:
1603:
1598:
1593:
1588:
1586:
1583:
1578:
1573:
1568:
1563:
1561:
1558:
1553:
1551:
1548:
1546:
1543:
1538:
1536:
1533:
1528:
1526:
1523:
1518:
1513:
1508:
1503:
1501:
1498:
1493:
1488:
1486:
1483:
1478:
1476:
1473:
1471:
1468:
1463:
1461:
1458:
1453:
1451:
1448:
1443:
1441:
1438:
1433:
1431:
1428:
1423:
1421:
1418:
1413:
1411:
1408:
1403:
1401:
1398:
1393:
1388:
1383:
1378:
1373:
1371:
1368:
1363:
1359:
1356:
1355:
1354:
1351:
1346:
1344:
1341:
1339:
1336:
1334:
1331:
1329:
1326:
1324:
1321:
1319:
1316:
1314:
1311:
1309:
1306:
1304:
1301:
1296:
1291:
1289:
1286:
1284:
1281:
1276:
1274:
1271:
1269:
1266:
1264:
1261:
1259:
1256:
1254:
1251:
1249:
1246:
1244:
1241:
1239:
1236:
1234:
1231:
1229:
1226:
1224:
1221:
1219:
1216:
1214:
1211:
1209:
1206:
1204:
1201:
1199:
1196:
1194:
1191:
1189:
1186:
1184:
1181:
1179:
1176:
1174:
1171:
1169:
1166:
1164:
1161:
1156:
1154:
1151:
1149:
1146:
1144:
1141:
1139:
1136:
1134:
1131:
1129:
1126:
1121:
1119:
1116:
1114:
1111:
1109:
1106:
1104:
1101:
1099:
1096:
1094:
1091:
1089:
1086:
1084:
1081:
1079:
1076:
1074:
1071:
1069:
1066:
1064:
1061:
1059:
1056:
1054:
1051:
1049:
1046:
1044:
1041:
1039:
1036:
1034:
1031:
1029:
1026:
1024:
1021:
1019:
1016:
1014:
1011:
1007:
1004:
1003:
1002:
999:
997:
994:
992:
989:
987:
984:
982:
979:
977:
974:
972:
969:
967:
964:
962:
959:
957:
954:
952:
949:
947:
944:
942:
939:
937:
934:
932:
929:
927:
924:
922:
919:
914:
912:
909:
907:
904:
902:
899:
897:
894:
892:
889:
887:
884:
882:
879:
877:
874:
872:
869:
867:
864:
862:
859:
857:
854:
852:
849:
847:
844:
842:
839:
837:
834:
832:
829:
827:
824:
822:
819:
817:
814:
812:
809:
807:
804:
802:
799:
797:
794:
792:
789:
787:
784:
782:
779:
777:
774:
772:
769:
767:
764:
763:
761:
755:
750:
746:
745:Bell Aircraft
739:
734:
732:
727:
725:
720:
719:
716:
709:
705:
702:
699:
695:
692:
689:
685:
682:
680:
677:
676:
667:
666:1-85780-165-2
663:
659:
655:
654:
647:
642:
635:
631:
628:
623:
616:
612:
606:
599:
598:Aviation Week
595:
591:
588:
582:
575:
569:
562:
558:
554:
551:
546:
539:
535:
531:
528:
523:
516:
511:
504:
503:Defense Daily
500:
496:
493:
490:Fein, Geoff.
487:
485:
483:
481:
479:
477:
469:
465:
462:
457:
450:
446:
443:
438:
431:
427:
424:
418:
411:
405:
398:
394:
390:
387:
382:
375:
369:
360:
358:
356:
348:
344:
341:
336:
334:
332:
330:
325:
315:
312:
310:
307:
306:
305:
304:
303:Related lists
298:
295:
293:
290:
289:
288:
287:
281:
278:
276:
273:
272:
271:
270:
264:
261:
259:
256:
255:
249:
247:
241:
239:
234:
224:
221:
218:
213:
209:
206:
201:
198:
194:
190:
186:
181:
179:
173:
171:
170:CH-47 Chinook
167:
166:Phantom Works
162:
152:
150:
145:
142:
127:
125:
121:
117:
113:
109:
105:
101:
97:
88:
85:
81:
76:
72:
68:
65:
61:
58:
56:
52:
49:
46:
42:
37:
30:
25:
20:
2351:
2322:Jet Ranger X
2292:GlobalRanger
2077:
759:designations
757:Manufacturer
707:
697:
687:
657:
641:
622:
615:Defense News
614:
605:
597:
581:
568:
560:
545:
537:
522:
510:
502:
456:
437:
417:
404:
396:
381:
368:
302:
301:
285:
284:
268:
267:
258:Powered lift
242:
238:463L pallets
230:
214:
210:
202:
182:
174:
158:
146:
138:
95:
93:
55:Manufacturer
2377:Sioux Scout
538:Rotorbreeze
376:. vtol.org.
233:tandem wing
205:aeroelastic
185:wind tunnel
130:Development
116:U.S. Army's
2470:Quadrotors
2449:Categories
2427:Zulu Cobra
2402:TwinRanger
2387:Super Huey
2382:SuperCobra
2367:Sea Ranger
2342:LongRanger
2287:Fire Scout
2242:Airabonita
2046:Tiltrotors
1839:Bell AH-1
320:References
135:Background
100:four-rotor
2397:Twin Huey
2362:Sea Cobra
2332:KingCobra
2327:Kingcobra
2317:JetRanger
2302:HueyCobra
2282:Eagle Eye
2267:BigLifter
2252:Airacomet
2247:Airacobra
2176:LLRV/LLTV
292:Bell X-22
2417:Vigilant
2312:Iroquois
2307:Invictus
2257:Airacuda
751:aircraft
630:Archived
590:Archived
553:Archived
530:Archived
495:Archived
464:Archived
445:Archived
426:Archived
389:Archived
343:Archived
252:See also
2262:Arapaho
2166:FCX-001
1843:Singles
1730:912–917
1720:681–910
1710:647–679
1700:610–645
1690:600–608
1680:846–598
1670:577–582
1660:549–575
1650:541–547
1640:534–539
1630:526–532
1620:506–524
1610:550–504
1555:431–439
1530:418–426
1465:401–405
1455:361–399
1445:310–359
1435:302–308
1425:250–300
1415:231–248
1405:223–229
1278:131–199
961:39 (II)
246:Stryker
78:History
2357:Ranger
2347:Osprey
2211:XF-109
1932:ARH-70
1865:YAH-63
1819:PQM-56
1123:70–100
956:39 (I)
664:
227:Design
112:Boeing
70:Status
64:Boeing
2422:Viper
2412:Venom
2407:Valor
2372:Sioux
2337:Kiowa
2277:Creek
2272:Cobra
2235:Names
2226:XV-15
2216:XP-52
2161:D-292
2156:D-255
2151:D-188
2094:MQ-8C
2073:TR918
2068:AW609
2063:V-280
2058:V-247
1990:214ST
1927:TH-67
1922:OH-58
1917:TH-57
1910:UH-1Y
1905:UH-1N
1893:H-13J
1853:AH-1Z
1848:Twins
1803:XP-83
1798:XP-77
1768:YFM-1
1752:D-292
1747:D-255
1742:D-188
1358:214ST
191:) at
73:Study
2297:Huey
2221:XV-3
2206:X-22
2201:X-16
2196:X-14
2171:L-39
2087:UAVs
2053:V-22
1900:UH-1
1888:H-13
1793:P-76
1788:P-63
1783:P-59
1773:P-39
747:and
662:ISBN
193:NASA
178:V-22
161:US$
141:quad
110:and
94:The
62:and
60:Bell
44:Type
2191:X-5
2186:X-2
2181:X-1
2146:533
2141:201
2136:ATV
2120:440
2115:417
2110:400
2078:QTR
2037:525
2032:505
2027:430
2022:429
2017:427
2012:412
2007:407
2002:230
1997:222
1985:214
1980:212
1975:210
1970:206
1965:205
1960:204
1953:47J
1870:360
1860:309
1835:207
1778:XFL
1735:918
1725:911
1715:680
1705:646
1695:609
1685:599
1675:583
1665:576
1655:548
1645:540
1635:533
1625:525
1615:505
1605:449
1600:448
1595:447
1590:446
1585:445
1580:444
1575:443
1570:442
1565:441
1560:440
1550:430
1545:429
1540:428
1535:427
1525:417
1520:416
1515:415
1510:414
1505:413
1500:412
1495:411
1490:410
1485:409
1480:408
1475:407
1470:406
1460:400
1450:360
1440:309
1430:301
1420:249
1410:230
1400:222
1395:221
1390:220
1385:219
1380:218
1375:217
1370:216
1365:215
1353:214
1348:213
1343:212
1338:211
1333:210
1328:209
1323:208
1318:207
1313:206
1308:205
1303:204
1298:203
1293:202
1288:201
1283:200
1273:130
1268:129
1263:128
1258:127
1253:126
1248:125
1243:124
1238:123
1233:122
1228:121
1223:120
1218:119
1213:118
1208:117
1203:116
1198:115
1193:114
1188:113
1183:112
1178:111
1173:110
1168:109
1163:108
1158:107
1153:106
1148:105
1143:104
1138:103
1133:102
1128:101
195:'s
2451::
1948:47
1118:69
1113:68
1108:67
1103:66
1098:65
1093:64
1088:63
1083:62
1078:61
1073:60
1068:59
1063:58
1058:57
1053:56
1048:55
1043:54
1038:53
1033:52
1028:51
1023:50
1018:49
1013:48
1001:47
996:46
991:45
986:44
981:43
976:42
971:41
966:40
951:38
946:37
941:36
936:35
931:34
926:33
921:32
916:31
911:30
906:29
901:28
896:27
891:26
886:25
881:24
876:23
871:22
866:21
861:20
856:19
851:18
846:17
841:16
836:15
831:14
826:13
821:12
816:11
811:10
706:.
696:.
686:.
613:.
596:.
559:.
536:.
501:.
475:^
395:.
354:^
328:^
180:.
172:.
1006:J
806:9
801:8
796:7
791:6
786:5
781:4
776:3
771:2
766:1
737:e
730:t
723:v
668:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
