Knowledge (XXG)

Wright R-790 Whirlwind

Source 📝

167:, were satisfied with their liquid-cooled engines and showed no interest in building air-cooled engines. Since the Navy was already a major buyer of Wright engines, it pressured Wright into purchasing Lawrance and building the J-1 itself, by informing the company that the Navy would buy no more of its existing engines or spare parts. To retain the Navy's business, Wright complied in 1923 and the Lawrance J-1 became the Wright J-1. 233: 218: 40: 248:
Many Whirlwind engines were used in U.S. Navy aircraft, mostly in trainers, but also in some ship-based observation and fighter aircraft. As the engines were refined and their reputation for reliability grew, their use expanded to U.S. Army trainers and a wide range of U.S. civil aircraft, including
162:
for the U.S. Navy. The Navy was very enthusiastic about air-cooled engines, which it considered better suited for naval use than liquid-cooled ones. Lawrance was a small company, though, and the Navy doubted it could produce enough engines for its needs. Despite urgings from the Navy, the major U.S.
206:
In a 1928 report on transcontinental aviation, the author disclosed the cost of a typical five-seat commercial aircraft as $ 12,500, of which $ 5,000 was for one of the 350 200 hp Whirlwind Engines available that year. The J-5 was the last of the original nine-cylinder Whirlwinds. In 1928, it
184:
The J-5 Whirlwind, introduced in 1925, was a complete redesign of the engine with greatly improved cooling and breathing, further increasing its reliability and reducing fuel consumption. Among the visible changes was the much wider separation between the valves, for better cooling airflow, and
177:
Over the next two years, Wright gradually refined the J-1 engine, introducing the J-3, J-4, J-4A, and J-4B. The changes improved the engine's reliability, cooling, and fuel consumption, but the basic design, dimensions, and performance were unaltered.
801:
Also on display at the San Francisco International Airport, International Terminal. Older Whirlwinds on display are harder to find. The National Museum of Naval Aviation has two J-4s, one of which is a cutaway. The
278:, powered by a single Whirlwind J-5C. During Lindbergh's flight, the engine ran continuously for 33.5 hours. Lindbergh's achievement greatly boosted the Whirlwind's already good reputation. 1924: 414:, which manufactured a further 300 engines from 1935 to 1938. Polish-built J-5s were used in numerous Polish aircraft, mostly in military training, observation, and liaison aircraft. 1484: 1937: 2683: 728: 260:
The reliability of J-5 Whirlwind engines also led aviators to use them for a number of record-setting distance and endurance flights. The most famous of these is
2647: 1917: 2402: 1371: 1477: 1166: 1910: 1306: 2447: 2678: 1188: 2652: 2467: 1137: 174:
and displacement. However, Lawrance decided the J-1 was large enough, and the J-2 never went into production; only two examples were built.
1470: 2482: 2372: 217: 2442: 2432: 1933: 552: 164: 2437: 170:
By the time Lawrance merged with Wright, it had already developed the more powerful J-2, a version of the J-1 with slightly enlarged
1121: 746: 1061: 232: 2673: 2417: 196:
The U.S. government later designated the J-5 Whirlwind as the R-790, but it did not apply this designation to the older engines.
142:
of about 790 cubic inches (12.9 L) and around 200 horsepower (150 kW). These engines were the earliest members of the
135: 76: 351:, from May 31 to June 9, 1928. The leg from Hawaii to Fiji lasted 34.5 hours over 3,100 mi (5,000 km) of open ocean. 1080: 795: 2387: 719: 48: 2472: 1841: 1773: 1741: 1497: 159: 1509: 512: 481: 2462: 2257: 1980: 1975: 1902: 1768: 1736: 778: 475: 354:
A record endurance flight of 150 hours, 40 minutes, and 14 seconds was made by U.S. Army fliers in the Fokker C-2A
619: 2642: 2626: 2457: 1970: 1960: 339: 2477: 2317: 2041: 1778: 1746: 1017: 369: 356: 1286:
Image Galleries by Gary and Janet Brossett: Experimental Aircraft Association AirVenture Museum – Oshkosh, WI
2412: 2397: 2382: 1758: 1753: 1726: 1721: 1703: 1698: 1651: 1646: 1638: 774: 704: 507: 334: 614: 181:
The J-4 was the first engine to bear the Whirlwind name; previous engines used only the alphanumeric code.
2362: 2342: 2297: 1693: 1683: 1678: 1671: 1666: 1661: 803: 224: 411: 84: 2550: 2525: 2452: 2427: 2422: 1804: 1763: 1731: 1713: 1448: 968: 760: 1407: 2089: 2008: 2307: 2104: 2051: 1453: 2535: 2515: 2367: 2099: 1985: 1557: 1552: 2540: 2530: 2267: 2061: 2046: 2003: 1799: 1493: 1264:
Image Galleries by Gary and Janet Brossett: National Museum of Naval Aviation in Pensacola, Florida
1194: 876: 851: 786: 609: 577: 376: 344: 323: 285: 274: 139: 104: 2084: 2031: 1891: 1621: 1606: 1601: 1596: 1586: 1547: 1440:. A detailed technical article on the Whirlwind's history and development up to the J-5, from the 2560: 2224: 2174: 1562: 1542: 1537: 1532: 1527: 1522: 764: 532: 311: 2377: 2272: 2262: 1831: 1826: 402:
The Whirlwind J-5 was also produced under license in Poland by several makers. Among these were
307:, in the same Wright-Bellanca on June 4–6, 1927, in a flight lasting 42.5 hours (3,920 mi). 2322: 2209: 2199: 2149: 2139: 2134: 2119: 1117: 959: 597: 572: 567: 557: 502: 497: 492: 304: 261: 1237: 2487: 2229: 2013: 1965: 1517: 983: 830: 782: 723: 527: 361: 327: 208: 143: 1425: 379:, who developed the original Whirlwind series and became president of Wright, won the 1927 2505: 2239: 2023: 1500: 1084: 1065: 867: 634: 629: 624: 562: 537: 487: 315: 250: 200: 131: 108: 281:
Some other historic long-duration flights made in aircraft powered by the J-5 Whirlwind:
2565: 2555: 2545: 2407: 2392: 2327: 2234: 2219: 2214: 2204: 2194: 2189: 2184: 2179: 2169: 2164: 2159: 2154: 2144: 2129: 2124: 2114: 2109: 2036: 1955: 1462: 1058: 715:
Some museums which have J-5 Whirlwinds (or the military R-790 equivalents) on display:
603: 517: 407: 380: 300: 292:
made a record endurance flight of 51 hours, 11 minutes, 25 seconds in a single-engined
80: 2667: 2312: 2292: 2282: 2249: 1573: 1328: 950: 931: 858: 807: 699: 672: 582: 547: 542: 392: 293: 265: 254: 171: 128: 112: 17: 2606: 2588: 2583: 2520: 2510: 2357: 2352: 2337: 2094: 2056: 1886: 1863: 1794: 1616: 1611: 1591: 1581: 1005: 1000: 995: 815: 592: 587: 522: 427: 155: 1077: 360:
trimotor over Southern California on January 1–7, 1929. Achieved with the help of
203:
of 5.5 in (14.0 cm), and a displacement of 788 in (12.91 L).
2076: 2066: 1362:. The section "Images from Kimble D. McCutcheon" has photos of the museum's J-1. 1350: 811: 662: 289: 39: 1395: 2332: 2302: 2287: 2277: 1868: 1855: 1836: 1459:. A contemporary technical article on the features and performance of the J-5. 913: 897: 687: 667: 410:, which built about 350 to 400 engines from 1929 to 1931, and the Polish firm 365: 190: 125: 1851: 1227:. The section "Images from Gary Brossett" has a photo of the museum's R-790. 1087:, from the Naval Historical Center. See entries for 1928, February 1 and 28. 768: 750: 644: 639: 470: 310:
The first successful flight from the continental U.S. to Hawaii was made by
1068:(PDF), by Kimble D. McCutcheon, from the Aircraft Engine Historical Society 2616: 2598: 2575: 2497: 1995: 1945: 1818: 1391: 1262: 1215: 1449:"The Wright J-5 'Whirlwind': An American Engine Which Has Made History" 1284: 754: 649: 186: 1878: 732: 682: 677: 396: 454:: Complete redesign with improved reliability and performance, 1925. 1239:
National Museum of the United States Air Force: Images by Tony Ward
739:. (This engine, also pictured above, was one of the three used by 330:, on June 28–29, 1927, lasting 25 hours 50 minutes (2,400 mi). 269: 837:
dimensions from "Model Designations of U.S.A.F. Aircraft Engines"
736: 348: 1906: 1466: 1441: 1375: 199:
All these engines had a bore of 4.5 in (11.4 cm), a
1457:, vol. XIX, no. 24, pp. 390–392, June 16, 1927 158:, a nine-cylinder air-cooled radial developed in 1921 by the 1274:. This page has photos of a J-5 and two J-4s, one a cutaway. 1097:
Florabel Muir (4 August 1928). "Blazing New Wing Trails".
27:
Series of nine cylinder air-cooled radial aircraft engines
442:: Improved version, 1924. First to be named "Whirlwind". 1379: 1330:
New England Air Museum – Engine Profile: Lawrance J-1
1249:. This page has several photos of the museum's R-790. 1372:
Approved Type Certificate No. 13 (ATC 13) data sheet
1352:
New England Air Museum in Windsor Locks, Connecticut
383:
for his work on air-cooled radial aircraft engines.
333:
The first flight across the Pacific was made by Sir
2615: 2597: 2574: 2496: 2248: 2075: 2022: 1994: 1944: 1877: 1850: 1817: 1787: 1712: 1637: 1630: 1571: 1507: 1392:"Model Designations of U.S.A.F. Aircraft Engines" 785:, as one powers the museum's recently completed 372:was slowing the nose and starboard-side radials. 1308:Old Rhinebeck Aerodrome – Wright Whirlwind J-5 729:National Museum of the United States Air Force 1918: 1478: 8: 1054: 1052: 1050: 1048: 1046: 1044: 1042: 1040: 1038: 794:A Wright J-5-CA is on public display at the 1168:Collections Database: Objects: A19791508000 1147:(in French). Societe Francais Hispano-Suiza 657:Polish aircraft, using Polish-built engines 58:Air-cooled 9-cylinder radial piston engine 1925: 1911: 1903: 1634: 1485: 1471: 1463: 368:failures stopped the portside engine, and 238:Side view of the USAF museum's R-790 (J-5) 2684:Aircraft air-cooled radial piston engines 430:as built by Wright Aeronautical in 1923. 185:completely enclosed, instead of exposed 1257: 1255: 1034: 918:2 valves per cylinder, pushrod-actuated 436:: Wright's first refined version, 1923. 213: 818:, the Whirlwind's direct predecessor. 29: 1296:. This page has a photo of an R-790A. 7: 822:Specifications (R-790 Whirlwind J-5) 2648:US military gas turbine aeroengines 1078:Naval Aviation Chronology 1920–1929 553:Naval Aircraft Factory N3N-1 Canary 303:flew nonstop from New York City to 223:Partially sectioned Wright J-4B at 207:was replaced by the seven-cylinder 163:aircraft engine makers, Wright and 1442:Aircraft Engine Historical Society 1116:. New York: Harcourt. p. 78. 1114:Lindbergh: Flight's Enigmatic Hero 264:'s solo transatlantic flight from 25: 747:National Museum of Naval Aviation 296:over New York City in April 1927. 154:The R-790 Whirlwind began as the 833:data sheet for the Whirlwind J-5 791:airworthy Ryan NYP reproduction. 231: 216: 47:Wright R-790 (J-5 Whirlwind) at 38: 1380:Regulatory and Guidance Library 854:air-cooled radial piston engine 391:The J-5 Whirlwind was built by 136:Wright Aeronautical Corporation 77:Wright Aeronautical Corporation 924:single three-barrel carburetor 796:Aerospace Museum of California 364:, this flight ended only when 124:was a series of nine-cylinder 1: 2679:1920s aircraft piston engines 720:National Air and Space Museum 694:Aircraft from other countries 448:: Further refinements of J-4. 249:the earliest versions of the 49:National Air and Space Museum 2653:Piston engine configurations 1396:Section I, p. 11 (TIF image) 946:220 hp (164 kW) at 2,000 rpm 620:Texas-Temple Commercial Wing 160:Lawrance Aero Engine Company 81:Škoda Works (Czechoslovakia) 1217:National Museum of the USAF 513:Curtiss-Wright CW-14 Osprey 482:Buhl-Verville CA-3A Airster 347:, with stops in Hawaii and 272:on May 20–21, 1927, in the 2700: 955:0.279 hp/cu-in (12.7 kW/L) 887:34 to 40 in (86 to 102 cm) 476:Buhl-Verville CA-3 Airster 2635: 973:0.423 hp/lb (0.696 kW/kg) 743:on its flight to Hawaii.) 370:excessive valvetrain wear 46: 37: 32: 1018:List of aircraft engines 2674:Wright aircraft engines 2619:W-configuration inline) 1948:H-configuration inline) 1936:piston aircraft engine 1424:McCutcheon, Kimble D., 1410:(retrieved 30 May 2017) 842:General characteristics 775:Old Rhinebeck Aerodrome 705:Nieuport-Delage NiD 640 508:Curtiss N2C-1 Fledgling 406:, the Polish branch of 337:in the Fokker Trimotor 335:Charles Kingsford Smith 2599:VG (inverted-V inline) 2024:L (single-bank inline) 1996:IV (inverted-V inline) 1934:United States military 1427:Wright J-5 "Whirlwind" 1112:Hardesty, Von (2002). 1059:Wright J-5 "Whirlwind" 804:New England Air Museum 387:License-built versions 225:Canada Aviation Museum 150:Design and development 122:Wright R-790 Whirlwind 2576:V (inverted-V inline) 1374:, available from the 1138:"Revue Hispano-Suiza" 969:Power-to-weight ratio 761:EAA AirVenture Museum 615:Texas-Temple Aero C-4 404:Polskie Zakłady Skody 2498:V (upright-V inline) 294:Wright-Bellanca WB-2 18:Wright Whirlwind J-4 1190:Wright R-790 Radial 1145:dev.museesafran.com 990:Related development 881:788 cu in (12.91 L) 852:naturally aspirated 788:Spirit of St. Louis 610:Swallow New Swallow 578:Spirit of St. Louis 377:Charles L. Lawrance 345:Brisbane, Australia 324:Oakland, California 286:Clarence Chamberlin 275:Spirit of St. Louis 244:Operational history 105:Spirit of St. Louis 1938:designation system 1083:2014-10-15 at the 1064:2016-03-04 at the 1006:Wright J-6-9/R-975 1001:Wright J-6-7/R-760 996:Wright J-6-5/R-540 711:Engines on display 533:Ford Trimotor 4-AT 318:in the Fokker C-2 312:Albert Hegenberger 100:Major applications 2661: 2660: 1900: 1899: 1813: 1812: 960:Compression ratio 598:Stinson Detroiter 573:Ryan B-1 Brougham 568:Pitcairn Mailwing 558:New Standard D-25 503:Curtiss AT-5 Hawk 498:Consolidated PT-3 493:Consolidated O-17 305:Eisleben, Germany 262:Charles Lindbergh 118: 117: 16:(Redirected from 2691: 1927: 1920: 1913: 1904: 1639:Whirlwind family 1635: 1501:aircraft engines 1487: 1480: 1473: 1464: 1458: 1439: 1438: 1437: 1432: 1411: 1405: 1399: 1389: 1383: 1369: 1363: 1361: 1360: 1359: 1347: 1341: 1339: 1338: 1337: 1325: 1319: 1317: 1316: 1315: 1303: 1297: 1295: 1294: 1293: 1281: 1275: 1273: 1272: 1271: 1259: 1250: 1248: 1247: 1246: 1234: 1228: 1226: 1225: 1224: 1212: 1206: 1204: 1203: 1202: 1193:, archived from 1185: 1179: 1177: 1176: 1175: 1163: 1157: 1156: 1154: 1152: 1142: 1134: 1128: 1127: 1109: 1103: 1102: 1099:Liberty Magazine 1094: 1088: 1075: 1069: 1056: 984:Wright Whirlwind 831:Type certificate 741:Bird of Paradise 724:Washington, D.C. 528:Fokker Universal 362:aerial refueling 343:from Oakland to 328:Honolulu, Hawaii 320:Bird of Paradise 235: 220: 144:Wright Whirlwind 132:aircraft engines 101: 65: 42: 33:R-790 Whirlwind 30: 21: 2699: 2698: 2694: 2693: 2692: 2690: 2689: 2688: 2664: 2663: 2662: 2657: 2631: 2618: 2611: 2593: 2570: 2492: 2244: 2071: 2018: 1990: 1947: 1940: 1931: 1901: 1896: 1873: 1846: 1809: 1783: 1708: 1626: 1567: 1503: 1491: 1447: 1435: 1433: 1430: 1423: 1420: 1415: 1414: 1406: 1402: 1390: 1386: 1370: 1366: 1357: 1355: 1349: 1348: 1344: 1335: 1333: 1327: 1326: 1322: 1313: 1311: 1305: 1304: 1300: 1291: 1289: 1283: 1282: 1278: 1269: 1267: 1261: 1260: 1253: 1244: 1242: 1236: 1235: 1231: 1222: 1220: 1214: 1213: 1209: 1200: 1198: 1187: 1186: 1182: 1173: 1171: 1165: 1164: 1160: 1150: 1148: 1140: 1136: 1135: 1131: 1124: 1111: 1110: 1106: 1096: 1095: 1091: 1085:Wayback Machine 1076: 1072: 1066:Wayback Machine 1057: 1036: 1031: 1026: 980: 940: 909: 902:520 lb (236 kg) 872:5.5 in (140 mm) 863:4.5 in (114 mm) 844: 824: 713: 696: 659: 654: 635:Travel Air 4000 630:Travel Air 3000 625:Travel Air 2000 563:Pacer Monoplane 538:Keystone Pronto 488:Consolidated NY 466: 461: 420: 389: 316:Lester Maitland 299:Chamberlin and 251:Fokker Trimotor 246: 239: 236: 227: 221: 152: 146:engine family. 138:, with a total 111: 109:Fokker Trimotor 107: 99: 83: 79: 64:National origin 63: 28: 23: 22: 15: 12: 11: 5: 2697: 2695: 2687: 2686: 2681: 2676: 2666: 2665: 2659: 2658: 2656: 2655: 2650: 2645: 2636: 2633: 2632: 2630: 2629: 2623: 2621: 2617:W (three-bank 2613: 2612: 2610: 2609: 2603: 2601: 2595: 2594: 2592: 2591: 2586: 2580: 2578: 2572: 2571: 2569: 2568: 2563: 2558: 2553: 2548: 2543: 2538: 2533: 2528: 2523: 2518: 2513: 2508: 2502: 2500: 2494: 2493: 2491: 2490: 2485: 2480: 2475: 2470: 2465: 2460: 2455: 2450: 2445: 2440: 2435: 2430: 2425: 2420: 2415: 2410: 2405: 2400: 2395: 2390: 2385: 2380: 2375: 2370: 2365: 2360: 2355: 2350: 2345: 2340: 2335: 2330: 2325: 2320: 2315: 2310: 2305: 2300: 2295: 2290: 2285: 2280: 2275: 2270: 2265: 2260: 2254: 2252: 2246: 2245: 2243: 2242: 2237: 2232: 2227: 2222: 2217: 2212: 2207: 2202: 2197: 2192: 2187: 2182: 2177: 2172: 2167: 2162: 2157: 2152: 2147: 2142: 2137: 2132: 2127: 2122: 2117: 2112: 2107: 2102: 2097: 2092: 2087: 2081: 2079: 2073: 2072: 2070: 2069: 2064: 2059: 2054: 2049: 2044: 2039: 2034: 2028: 2026: 2020: 2019: 2017: 2016: 2011: 2006: 2000: 1998: 1992: 1991: 1989: 1988: 1983: 1978: 1973: 1968: 1963: 1958: 1952: 1950: 1942: 1941: 1932: 1930: 1929: 1922: 1915: 1907: 1898: 1897: 1895: 1894: 1889: 1883: 1881: 1875: 1874: 1872: 1871: 1866: 1860: 1858: 1848: 1847: 1845: 1844: 1839: 1834: 1829: 1823: 1821: 1815: 1814: 1811: 1810: 1808: 1807: 1805:R-2160 Tornado 1802: 1797: 1791: 1789: 1785: 1784: 1782: 1781: 1776: 1771: 1766: 1761: 1756: 1750: 1749: 1744: 1742:Duplex-Cyclone 1739: 1734: 1729: 1724: 1718: 1716: 1714:Cyclone family 1710: 1709: 1707: 1706: 1701: 1696: 1691: 1686: 1681: 1675: 1674: 1669: 1664: 1659: 1654: 1649: 1643: 1641: 1632: 1631:Wright radials 1628: 1627: 1625: 1624: 1619: 1614: 1609: 1604: 1599: 1594: 1589: 1584: 1578: 1576: 1569: 1568: 1566: 1565: 1560: 1555: 1550: 1545: 1540: 1535: 1530: 1525: 1520: 1514: 1512: 1510:inline engines 1505: 1504: 1492: 1490: 1489: 1482: 1475: 1467: 1461: 1460: 1445: 1419: 1416: 1413: 1412: 1408:Machine Design 1400: 1384: 1364: 1342: 1320: 1298: 1276: 1251: 1229: 1207: 1180: 1158: 1129: 1122: 1104: 1089: 1070: 1033: 1032: 1030: 1027: 1025: 1022: 1021: 1020: 1009: 1008: 1003: 998: 987: 986: 979: 976: 975: 974: 965: 956: 951:Specific power 947: 939: 936: 935: 934: 925: 919: 908: 905: 904: 903: 894: 893:45 in (114 cm) 888: 882: 873: 864: 855: 843: 840: 823: 820: 799: 798: 792: 772: 758: 744: 726: 712: 709: 708: 707: 702: 695: 692: 691: 690: 685: 680: 675: 670: 665: 658: 655: 653: 652: 647: 642: 637: 632: 627: 622: 617: 612: 607: 604:Stinson Junior 601: 595: 590: 585: 580: 575: 570: 565: 560: 555: 550: 545: 540: 535: 530: 525: 520: 518:Fairchild FC-2 515: 510: 505: 500: 495: 490: 485: 479: 473: 467: 465: 462: 460: 457: 456: 455: 449: 443: 437: 431: 419: 416: 388: 385: 381:Collier Trophy 374: 373: 352: 340:Southern Cross 331: 308: 301:Charles Levine 297: 245: 242: 241: 240: 237: 230: 228: 222: 215: 151: 148: 116: 115: 102: 96: 95: 92: 88: 87: 74: 70: 69: 68:United States 66: 60: 59: 56: 52: 51: 44: 43: 35: 34: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2696: 2685: 2682: 2680: 2677: 2675: 2672: 2671: 2669: 2654: 2651: 2649: 2646: 2644: 2641: 2638: 2637: 2634: 2628: 2625: 2624: 2622: 2620: 2614: 2608: 2605: 2604: 2602: 2600: 2596: 2590: 2587: 2585: 2582: 2581: 2579: 2577: 2573: 2567: 2564: 2562: 2559: 2557: 2554: 2552: 2549: 2547: 2544: 2542: 2539: 2537: 2534: 2532: 2529: 2527: 2524: 2522: 2519: 2517: 2514: 2512: 2509: 2507: 2504: 2503: 2501: 2499: 2495: 2489: 2486: 2484: 2481: 2479: 2476: 2474: 2471: 2469: 2466: 2464: 2461: 2459: 2456: 2454: 2451: 2449: 2446: 2444: 2441: 2439: 2436: 2434: 2431: 2429: 2426: 2424: 2421: 2419: 2416: 2414: 2411: 2409: 2406: 2404: 2401: 2399: 2396: 2394: 2391: 2389: 2386: 2384: 2381: 2379: 2376: 2374: 2371: 2369: 2366: 2364: 2361: 2359: 2356: 2354: 2351: 2349: 2346: 2344: 2341: 2339: 2336: 2334: 2331: 2329: 2326: 2324: 2321: 2319: 2316: 2314: 2311: 2309: 2306: 2304: 2301: 2299: 2296: 2294: 2291: 2289: 2286: 2284: 2281: 2279: 2276: 2274: 2271: 2269: 2266: 2264: 2261: 2259: 2256: 2255: 2253: 2251: 2247: 2241: 2238: 2236: 2233: 2231: 2228: 2226: 2223: 2221: 2218: 2216: 2213: 2211: 2208: 2206: 2203: 2201: 2198: 2196: 2193: 2191: 2188: 2186: 2183: 2181: 2178: 2176: 2173: 2171: 2168: 2166: 2163: 2161: 2158: 2156: 2153: 2151: 2148: 2146: 2143: 2141: 2138: 2136: 2133: 2131: 2128: 2126: 2123: 2121: 2118: 2116: 2113: 2111: 2108: 2106: 2103: 2101: 2098: 2096: 2093: 2091: 2088: 2086: 2083: 2082: 2080: 2078: 2074: 2068: 2065: 2063: 2060: 2058: 2055: 2053: 2050: 2048: 2045: 2043: 2040: 2038: 2035: 2033: 2030: 2029: 2027: 2025: 2021: 2015: 2012: 2010: 2007: 2005: 2002: 2001: 1999: 1997: 1993: 1987: 1984: 1982: 1979: 1977: 1974: 1972: 1969: 1967: 1964: 1962: 1959: 1957: 1954: 1953: 1951: 1949: 1946:H (four-bank 1943: 1939: 1935: 1928: 1923: 1921: 1916: 1914: 1909: 1908: 1905: 1893: 1890: 1888: 1885: 1884: 1882: 1880: 1876: 1870: 1867: 1865: 1862: 1861: 1859: 1857: 1853: 1849: 1843: 1840: 1838: 1835: 1833: 1830: 1828: 1825: 1824: 1822: 1820: 1816: 1806: 1803: 1801: 1798: 1796: 1793: 1792: 1790: 1786: 1780: 1777: 1775: 1772: 1770: 1767: 1765: 1762: 1760: 1757: 1755: 1752: 1751: 1748: 1745: 1743: 1740: 1738: 1735: 1733: 1730: 1728: 1725: 1723: 1720: 1719: 1717: 1715: 1711: 1705: 1702: 1700: 1697: 1695: 1692: 1690: 1687: 1685: 1682: 1680: 1677: 1676: 1673: 1670: 1668: 1665: 1663: 1660: 1658: 1655: 1653: 1650: 1648: 1645: 1644: 1642: 1640: 1636: 1633: 1629: 1623: 1620: 1618: 1615: 1613: 1610: 1608: 1605: 1603: 1600: 1598: 1595: 1593: 1590: 1588: 1585: 1583: 1580: 1579: 1577: 1575: 1570: 1564: 1561: 1559: 1556: 1554: 1551: 1549: 1546: 1544: 1541: 1539: 1536: 1534: 1531: 1529: 1526: 1524: 1521: 1519: 1516: 1515: 1513: 1511: 1506: 1502: 1499: 1495: 1488: 1483: 1481: 1476: 1474: 1469: 1468: 1465: 1456: 1455: 1450: 1446: 1443: 1429: 1428: 1422: 1421: 1417: 1409: 1404: 1401: 1397: 1393: 1388: 1385: 1381: 1377: 1373: 1368: 1365: 1354: 1353: 1346: 1343: 1332: 1331: 1324: 1321: 1310: 1309: 1302: 1299: 1288: 1287: 1280: 1277: 1266: 1265: 1258: 1256: 1252: 1241: 1240: 1233: 1230: 1219: 1218: 1211: 1208: 1197:on 2013-04-04 1196: 1192: 1191: 1184: 1181: 1170: 1169: 1162: 1159: 1146: 1139: 1133: 1130: 1125: 1123:9780151009732 1119: 1115: 1108: 1105: 1100: 1093: 1090: 1086: 1082: 1079: 1074: 1071: 1067: 1063: 1060: 1055: 1053: 1051: 1049: 1047: 1045: 1043: 1041: 1039: 1035: 1028: 1023: 1019: 1016: 1015: 1014: 1013: 1012:Related lists 1007: 1004: 1002: 999: 997: 994: 993: 992: 991: 985: 982: 981: 977: 972: 970: 966: 963: 961: 957: 954: 952: 948: 945: 944:Power output: 942: 941: 937: 933: 929: 926: 923: 920: 917: 915: 911: 910: 906: 901: 899: 895: 892: 889: 886: 883: 880: 878: 874: 871: 869: 865: 862: 860: 856: 853: 849: 846: 845: 841: 839: 838: 834: 832: 828: 821: 819: 817: 813: 809: 808:Windsor Locks 805: 797: 793: 790: 789: 784: 780: 776: 773: 770: 766: 762: 759: 756: 752: 748: 745: 742: 738: 734: 730: 727: 725: 721: 718: 717: 716: 710: 706: 703: 701: 700:Heinkel HD.20 698: 697: 693: 689: 686: 684: 681: 679: 676: 674: 673:Lublin R-XIII 671: 669: 666: 664: 661: 660: 656: 651: 648: 646: 643: 641: 638: 636: 633: 631: 628: 626: 623: 621: 618: 616: 613: 611: 608: 605: 602: 600:SB-1 and SM-1 599: 596: 594: 591: 589: 586: 584: 583:Stearman NS-1 581: 579: 576: 574: 571: 569: 566: 564: 561: 559: 556: 554: 551: 549: 548:Hamilton H-18 546: 544: 543:Lockheed Vega 541: 539: 536: 534: 531: 529: 526: 524: 521: 519: 516: 514: 511: 509: 506: 504: 501: 499: 496: 494: 491: 489: 486: 483: 480: 477: 474: 472: 469: 468: 464:U.S. aircraft 463: 458: 453: 450: 447: 444: 441: 438: 435: 432: 429: 425: 422: 421: 417: 415: 413: 409: 405: 400: 398: 394: 393:Hispano-Suiza 386: 384: 382: 378: 371: 367: 363: 359: 358: 357:Question Mark 353: 350: 346: 342: 341: 336: 332: 329: 325: 321: 317: 313: 309: 306: 302: 298: 295: 291: 287: 284: 283: 282: 279: 277: 276: 271: 267: 266:New York City 263: 258: 256: 255:Ford Trimotor 252: 243: 234: 229: 226: 219: 214: 212: 210: 209:Whirlwind J-6 204: 202: 197: 194: 192: 188: 182: 179: 175: 173: 168: 166: 161: 157: 149: 147: 145: 141: 137: 133: 130: 127: 123: 114: 113:Ford Trimotor 110: 106: 103: 98: 97: 93: 90: 89: 86: 85:Avia (Poland) 82: 78: 75: 73:Manufacturer 72: 71: 67: 62: 61: 57: 54: 53: 50: 45: 41: 36: 31: 19: 2639: 2347: 1737:Twin Cyclone 1688: 1656: 1452: 1434:, retrieved 1426: 1418:Bibliography 1403: 1387: 1367: 1356:, retrieved 1351: 1345: 1334:, retrieved 1329: 1323: 1312:, retrieved 1307: 1301: 1290:, retrieved 1285: 1279: 1268:, retrieved 1263: 1243:, retrieved 1238: 1232: 1221:, retrieved 1216: 1210: 1199:, retrieved 1195:the original 1189: 1183: 1172:, retrieved 1167: 1161: 1149:. Retrieved 1144: 1132: 1113: 1107: 1098: 1092: 1073: 1011: 1010: 989: 988: 967: 958: 949: 943: 927: 922:Fuel system: 921: 912: 896: 890: 884: 877:Displacement 875: 866: 857: 847: 836: 829: 826: 825: 816:Lawrance J-1 800: 787: 740: 714: 663:Bartel BM-5d 593:Stearman C3B 588:Stearman C2B 523:Fokker F.VII 459:Applications 451: 445: 439: 433: 428:Lawrance J-1 423: 403: 401: 390: 375: 355: 338: 319: 280: 273: 259: 247: 205: 198: 195: 183: 180: 176: 169: 156:Lawrance J-1 153: 140:displacement 121: 119: 2077:O (opposed) 1856:turboshafts 1543:T-4 Tornado 1538:T-3 Tornado 1533:T-2 Tornado 1528:T-1 Tornado 1523:Gipsy L-320 938:Performance 850:9-cylinder 812:Connecticut 452:J-5 (R-790) 408:Škoda Works 290:Bert Acosta 257:airliners. 191:rocker arms 2668:Categories 2589:V-1650 (L) 2551:V-1650 (P) 2273:R-370 (LB) 2250:R (radial) 1852:Turboprops 1747:Cyclone 22 1436:2018-04-26 1358:2009-12-13 1336:2009-12-13 1314:2009-12-13 1292:2008-09-06 1270:2008-09-06 1245:2008-09-06 1223:2008-09-06 1201:2017-07-17 1174:2008-09-06 1151:20 October 1024:References 928:Fuel type: 914:Valvetrain 907:Components 898:Dry weight 668:Lublin R-X 446:J-4A, J-4B 366:valvetrain 126:air-cooled 91:First run 2640:See also: 2303:R-540 (K) 2298:R-540 (W) 2278:R-370 (K) 2220:O-540 (L) 2215:O-540 (F) 2180:O-360 (L) 2175:O-360 (C) 2145:O-200 (F) 2140:O-200 (C) 1819:Turbojets 1727:Cyclone 9 1722:Cyclone 7 1572:Lawrance 891:Diameter: 827:Data from 779:Rhinebeck 769:Wisconsin 751:Pensacola 645:Vought UO 640:Vought FU 471:Boeing NB 134:built by 1795:L-3 Gale 1498:Lawrance 1081:Archived 1062:Archived 978:See also 814:, has a 783:New York 418:Variants 187:pushrods 2607:VG-1410 2488:XR-7755 2014:IV-2220 2009:IV-2040 2004:IV-1430 1981:XH-3730 1976:XH-3130 1971:XH-2600 1966:XH-2470 1961:XH-2240 1879:Ramjets 1732:Cyclone 1574:radials 1558:IV-1560 1553:IV-1460 1508:Wright 885:Length: 765:Oshkosh 755:Florida 688:PZL Ł.2 650:Waco 10 165:Curtiss 2643:X-1800 2627:W-2779 2566:V-3420 2561:V-1950 2556:V-1710 2546:V-1570 2541:V-1560 2536:V-1510 2531:V-1460 2526:V-1440 2521:V-1400 2516:V-1237 2511:V-1150 2483:R-4360 2478:R-4090 2473:R-3350 2468:R-2800 2463:R-2600 2458:R-2180 2453:R-2160 2448:R-2060 2443:R-2000 2438:R-1860 2433:R-1830 2428:R-1820 2423:R-1750 2418:R-1690 2413:R-1670 2408:R-1640 2403:R-1535 2398:R-1510 2393:R-1454 2388:R-1340 2383:R-1300 2378:R-1044 2368:DR-980 2240:O-1230 1986:H-4070 1956:H-1640 1800:R-1200 1788:Others 1779:R-4090 1774:R-3350 1769:R-2600 1764:R-1820 1759:R-1750 1754:R-1300 1704:R-1670 1699:R-1510 1563:V-1950 1494:Wright 1454:Flight 1120:  932:octane 868:Stroke 733:Dayton 683:PWS-26 678:PWS-18 606:SM-2AB 397:France 201:stroke 129:radial 2584:V-770 2506:V-720 2373:R-985 2363:R-975 2358:R-915 2353:R-830 2348:R-790 2343:R-760 2338:R-755 2333:R-720 2328:R-680 2323:R-670 2318:R-600 2313:R-550 2308:R-545 2293:R-500 2288:R-440 2283:R-420 2268:R-270 2263:R-265 2258:R-250 2235:O-805 2230:O-580 2225:O-550 2210:O-520 2205:O-480 2200:O-470 2195:O-435 2190:O-425 2185:O-405 2170:O-335 2165:O-300 2160:O-290 2155:O-235 2150:O-205 2135:O-190 2130:O-180 2125:O-175 2120:O-170 2115:O-150 2110:O-145 2105:O-100 2067:L-825 2062:L-510 2057:L-440 2052:L-410 2047:L-390 2042:L-375 2037:L-365 2032:L-330 1694:R-975 1689:R-790 1684:R-760 1679:R-540 1672:J-6-9 1667:J-6-7 1662:J-6-5 1548:V-720 1431:(PDF) 1141:(PDF) 1101:: 20. 1029:Notes 964:5.1:1 848:Type: 749:near 731:near 484:(J-5) 478:(J-4) 326:, to 322:from 270:Paris 94:1923 55:Type 2100:O-90 2095:O-45 2090:O-40 2085:O-15 1892:RJ55 1887:RJ47 1496:and 1153:2014 1118:ISBN 859:Bore 737:Ohio 412:Avia 349:Fiji 314:and 288:and 253:and 189:and 172:bore 120:The 1869:T49 1864:T35 1842:J67 1837:J65 1832:J61 1827:J59 1657:J-5 1652:J-4 1647:J-3 1622:L-5 1617:L-4 1612:L-3 1607:L-2 1602:L-1 1597:J-2 1592:J-1 1587:C-2 1582:A-3 1378:'s 1376:FAA 930:50 806:in 777:in 763:in 722:in 440:J-4 434:J-3 424:J-1 395:in 268:to 2670:: 1451:, 1394:, 1254:^ 1143:. 1037:^ 835:; 810:, 781:, 767:, 753:, 735:, 426:: 399:. 211:. 193:. 1926:e 1919:t 1912:v 1854:/ 1518:E 1486:e 1479:t 1472:v 1444:. 1398:. 1382:. 1340:. 1318:. 1205:. 1178:. 1155:. 1126:. 971:: 962:: 953:: 916:: 900:: 879:: 870:: 861:: 771:. 757:. 20:)

Index

Wright Whirlwind J-4

National Air and Space Museum
Wright Aeronautical Corporation
Škoda Works (Czechoslovakia)
Avia (Poland)
Spirit of St. Louis
Fokker Trimotor
Ford Trimotor
air-cooled
radial
aircraft engines
Wright Aeronautical Corporation
displacement
Wright Whirlwind
Lawrance J-1
Lawrance Aero Engine Company
Curtiss
bore
pushrods
rocker arms
stroke
Whirlwind J-6
Partially sectioned Wright J-4B at Canada Aviation Museum
Canada Aviation Museum
Side view of the USAF museum's R-790 (J-5)
Fokker Trimotor
Ford Trimotor
Charles Lindbergh
New York City

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.