838:
37:
359:
422:. Though it was basically similar to other R-975 engines, and its compression ratio and supercharger gear ratio were unchanged from the R-975E-3, other improvements in the R9-A allowed it to achieve 525 hp (391 kW) for takeoff, surpassing any Wright version. A military version, the R-975-46, could reach 550 hp (410 kW), and was used in
242:
Wright gradually developed the R-975, at first using suffix letters to indicate successive versions. The original R-975 (or J-6-9) was rated for 300 hp (224 kW), while the R-975E of 1931 could do 330 hp (246 kW) thanks to an improved
411:, and other Allied armored vehicles based on these. Continental versions of the R-975 for armored vehicles included the R-975E-C2, the R-975-C1, and the R-975-C4. In contrast to the 7,000 built by Wright, Continental built over 53,000 R-975 engines.
255:
limit. An even more powerful version, the R-975E-3, was also introduced that year, with greater supercharging and a still higher RPM limit, and was progressively refined until the final model of 1935 could reach 450 hp (336 kW) for takeoff.
177:
built the R-975 under license as a powerplant for Allied tanks and other armored vehicles. Tens of thousands of engines were built for this purpose, dwarfing the R-975's usage in aircraft, where it was overshadowed by the similar
414:
When installed in a tank, the R-975 did not have the benefit of being cooled by air slipstream or propeller blast, so a cooling fan was attached to the power shaft and surrounded by a shroud to provide the same effect.
2033:
2010:
1987:
1964:
1951:
494:
420 hp (310 kW) at 2,200 RPM up to 1,400 ft (430 m), 450 hp (340 kW) at 2,250 RPM for takeoff. Increased supercharging, slightly higher compression ratio.
2723:
247:
design. Wright later added numeric suffixes to show different power levels. The R-975E-1, introduced the same year as the R-975E, was rated at 365 hp (272 kW) thanks to
3210:
3579:
162:. These engines had a displacement of about 975 cu in (15.98 L) and power ratings of 300–450 hp (220–340 kW). They were the largest members of the
506:
500 hp (370 kW) at 2,300 RPM at 4,000 ft (1,200 m), 525 hp (391 kW) at 2,300 RPM for takeoff. Continental's improved post-war version.
2877:
332:
in 49:20 hours, establishing a distance record of 5,011.8 miles (8,065.7 km), the first nonstop record flight to surpasse 5,000 mi (8,000 km).
264:
As the most powerful
Whirlwind to be produced, commercially it was also the most successful. It powered a wide variety of civil utility aircraft, such as the
2097:
1532:
182:. After the war, Continental continued to produce its own versions of the R-975 into the 1950s. Some of these produced as much as 550 hp (410 kW).
3478:
2844:
2890:
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3042:
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2039:
2016:
1993:
1970:
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366:, are powered by nine-cylinder, 400-horsepower Wright Whirlwind aviation-type engines. These men are working on the engine wiring sub-assembly.
3600:
3330:
3225:
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2444:
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1732:. This personal collection of museum aircraft engine photos includes a photo of the museum's R-975 under the section for the Hiller Museum.
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208:
series. The J-6 family included varieties with five, seven, and nine cylinders. The nine-cylinder version was originally known as the
2090:
1661:
3400:
2863:
192:
tank destroyer which was claimed to have been the fastest tracked armored vehicle until the introduction of the turbine powered
3636:
1908:
1853:
1582:. Transcribed from Wright Aeronautical documents by Robert J. Neal T; available from the Aircraft Engine Historical Society's
3605:
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process and, on one version only, the 9Qdr, an epicyclic output speed reducer. The R-975 was also produced under licence by
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83:
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was expanded to 5.0 in (12.7 cm) from the R-790's bore of 4.5 in (11.4 cm). While the R-790 was
3631:
3370:
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2523:
1742:
1688:
704:
1941:
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1148:
795:
500:
400 hp (300 kW) at 2,400 RPM. Built by
Continental Motors under license for use in armored vehicles.
451:
223:
Like all the members of the J-6 Whirlwind family, the R-975 had larger cylinders than the R-790. The piston
3425:
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One notable record set by a Wright J-6 Whirlwind-powered aircraft occurred during July 28–30, 1931, when
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Wright's production of the R-975 ceased in 1945, with over 7,000 engines being produced by the company.
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Image
Galleries by Gary and Janet Brossett: National Museum of Naval Aviation in Pensacola, Florida
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420 hp (313 kW) at 2,200 RPM up to 1,400 ft (427 m); 450 hp (336 kW) at 2,250 RPM for takeoff
1000:
1831:
805:
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729:
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609:
604:
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Tank manufacture (Chrysler). M-3s, the twenty-eight ton "medium" tanks being turned out in
1018:
Lake Boga
Catalina Museum (Lake Boga, Victoria, Australia) has a Continental Wright R-975.
8:
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Image
Galleries by Gary and Janet Brossett: Pima Air and Space Museum in Tucson, Arizona
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Patton's
Vanguard: The United States Army Fourth Armored Division, By Don M. Fox. P.25
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378:, chose Continental Motors to build the R-975 under license as the engine for its
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330 hp (250 kW) at 2,000 RPM. Higher power from improved cylinder head.
426:
helicopters. Continental's production of R-975 engines continued into the 1950s.
325:
311:
289:
224:
166:
engine family to be produced commercially, and they were also the most numerous.
151:
2547:
Continental Motors, Teledyne
Continental, and Continental Aerospace Technologies
204:
Wright introduced the J-6 Whirlwind family in 1928 to replace the nine-cylinder
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A Grant tank R-975 engine being removed by Royal Army
Ordnance Corps mechanics
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After the war, Continental introduced its own R-975 version for aircraft, the
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276:. In addition, it powered U.S. military training aircraft including the
3285:
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1008:
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876:
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563:
390:
375:
347:. Pratt & Whitney R-985 outsold the Wright R-975 by a wide margin.
107:
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2464:
1533:"'Cape Cod's' Success Climaxes 5 Years [of] Bellanca Records"
1012:
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881:
447:
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329:
193:
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3528:
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2898:
2818:
2431:
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1036:
data sheet for the R-975E-3; dimensions from
Curtiss-Wright (1983).
911:
815:
810:
394:
1117:
994:
980:
952:
800:
600:
Curtiss-Wright CW-14 Travel Air/Speedwing/Sportsman Deluxe/Osprey
558:
488:
365 hp (272 kW) at 2,100 RPM. Higher compression ratio.
295:
operated from U.S. Navy airships was also powered by the R-975.
2491:
948:
871:
455:
386:
446:
without modification apart from the use of
Hispano's patented
227:
of 5.5 in (14.0 cm) was unchanged, but the cylinder
220:; Wright later adopted this and dropped the J-6 nomenclature.
2562:
435:
235:, the R-975, like the other J-6 engines, had a gear-driven
1932:. Available from the Aircraft Engine Historical Society's
1877:. Available from the Aircraft Engine Historical Society's
1030:
2105:
1048:
9-cylinder supercharged air-cooled radial piston engine
1022:
1948:
385:. Subsequently, the same engine was selected for the
216:
for short. The U.S. government designated it as the
1820:
Queensland Air Museum: Courtesy of Bruce Vander Mark
1759:. This page has a photo of a Continental R-975-46A.
353:
940:Some museums which have R-975 engines on display:
1861:, pp. 11, 13, 14, 16, 18, 19, archived from
3618:
1560:Summary of Wright Engine Shipments: 1920 to 1963
542:variant of the licence-built R-975 J-6 Whirlwind
536:variant of the licence-built R-975 J-6 Whirlwind
530:variant of the licence-built R-975 J-6 Whirlwind
524:variant of the licence-built R-975 J-6 Whirlwind
518:variant of the licence-built R-975 J-6 Whirlwind
335:However, the R-975 faced heavy competition from
1903:
1848:
44:A Continental-built R-975 from a Sherman tank
2871:
2531:
2091:
429:
1793:Queensland Air Museum: The Engine Collection
1198:Specifications for different R-975 variants
863:modification of M7 Priest and other vehicles
370:In 1939 the U.S. Army, which had been using
424:Piasecki's HUP Retriever and H-25 Army Mule
2878:
2864:
2538:
2524:
2098:
2084:
1947:data sheets, all available from the FAA's
1910:Historical Engine Summary (Beginning 1930)
1705:. This page has a photo of a Wright R-975.
1039:
931:– anti-aircraft vehicle based on Grizzly I
854:– Canadian production of M4A1 Sherman tank
3627:Aircraft air-cooled radial piston engines
1502:
1500:
1476:
1474:
1450:
1448:
1412:
1410:
551:
476:300 hp (220 kW) for airship use
199:
147:was a series of nine-cylinder air-cooled
836:
357:
1645:
1603:
1601:
1599:
1537:The Sunday Morning Star, Wilmington, DE
1518:
1516:
1514:
1512:
1464:
1462:
1460:
470:300 hp (220 kW) at 2,000 RPM.
14:
3619:
2062:Engine Data Sheets: US Aero Engines —
1889:. Warrendale, USA: SAE International.
1522:FAA Type Certificate Data Sheet TC 125
1497:
1490:
1488:
1486:
1471:
1468:FAA Type Certificate Data Sheet ATC 21
1445:
1438:
1436:
1434:
1432:
1430:
1428:
1426:
1424:
1422:
1407:
1299:525 hp (391 kW) at 2,300 RPM
1296:500 hp (373 kW) at 2,300 RPM
1276:450 hp (336 kW) at 2,250 RPM
1273:420 hp (313 kW) at 2,200 RPM
1251:365 hp (272 kW) at 2,100 RPM
1229:330 hp (246 kW) at 2,000 RPM
259:
2859:
2519:
2079:
1607:FAA Type Certificate Data Sheet E-245
1506:Curtiss-Wright (1940), pp. 14, 16, 18
1494:FAA Type Certificate Data Sheet TC 87
1364:Pratt & Whitney R-985 Wasp Junior
935:
268:, and various airliners, such as the
1884:
1596:
1509:
1457:
832:
630:Douglas RD-1 & C-21/OA-3 Dolphin
364:Detroit at the Chrysler tank arsenal
3601:US military gas turbine aeroengines
1483:
1419:
1023:Specifications (Whirlwind R-975E-3)
24:
2012:Type Certificate Data Sheet TC 125
1966:Type Certificate Data Sheet ATC 21
25:
3653:
2056:
2035:Type Certificate Data Sheet E-245
1989:Type Certificate Data Sheet TC 87
1855:Wright Engines - Past and Present
973:National Museum of Naval Aviation
705:Lockheed Model 12B Electra Junior
512:Licence-built R-975 J-6 Whirlwind
397:(which used the M3 chassis), the
354:Production by Continental Motors
35:
1949:Regulatory and Guidance Library
1942:Federal Aviation Administration
1841:
1811:
1784:
1762:
1735:
1708:
1681:
1654:
1633:(in Portuguese). March 21, 2013
1619:
1610:
1551:
1525:
546:
251:pistons and a slightly greater
185:The R-975 powered the American
1398:
1157:
796:Travel Air Type R Mystery Ship
695:Keystone-Loening K-84 Commuter
13:
1:
3637:1920s aircraft piston engines
1627:"O bom caminhão a casa torna"
1386:
1100:
925:(S-53) – prototype helicopter
615:de Havilland DH.75B Hawk Moth
3606:Piston engine configurations
1887:Hispano Suiza in Aeronautics
1832:photo of a Continental R-975
1651:Curtiss-Wright (1940), p. 19
1480:Curtiss-Wright (1940), p. 14
1454:Curtiss-Wright (1940), p. 13
1416:Curtiss-Wright (1940), p. 11
750:Pitcairn PA-33 & 34/OP-2
7:
1916:, p. 2, archived from
1442:Curtiss-Wright (1983), p. 2
1317:
945:Pima Air & Space Museum
821:Waco JWM and JYM mailplanes
610:Curtiss-Wright SNC-1 Falcon
585:Caribbean Traders Husky III
461:
452:Fábrica Nacional de Motores
239:to boost its power output.
137:over 53,000 by Continental
10:
3658:
1311:705 lb (320 kg)
1288:675 lb (306 kg)
1265:660 lb (299 kg)
1243:635 lb (288 kg)
861:armoured personnel carrier
765:Stearman Model 6C Cloudboy
745:Pitcairn-Cierva PCA-2/OP-1
430:Other license-built R-975s
393:medium tank, the Canadian
3588:
3568:
3550:
3527:
3449:
3201:
3028:
2975:
2947:
2897:
2835:
2817:
2789:
2761:
2669:
2571:
2556:
2490:
2463:
2430:
2400:
2325:
2250:
2243:
2184:
2120:
1175:0.43 hp/cu-in (19.7 kW/L)
987:Southern Museum of Flight
735:North American NA-64 Yale
575:Bellanca CH-300 Pacemaker
286:Curtiss-Wright SNC Falcon
180:Pratt & Whitney R-985
43:
34:
29:
1663:Wright R-975 Whirlwind 9
1391:
1381:List of aircraft engines
1015:has a Continental R-975.
997:has a Continental R-975.
983:has a Continental R-975.
929:Skink anti-aircraft tank
434:The engine was built in
3632:Wright aircraft engines
3572:W-configuration inline)
2901:H-configuration inline)
2889:piston aircraft engine
2763:Aircraft Diesel engines
1215:Supercharger gear ratio
1193:0.62 hp/lb (1.02 kW/kg)
1040:General characteristics
770:Stinson SM-1F Detroiter
645:Curtiss F9C Sparrowhawk
300:Russell Norton Boardman
290:Curtiss F9C Sparrowhawk
3552:VG (inverted-V inline)
2977:L (single-bank inline)
2949:IV (inverted-V inline)
2887:United States military
2574:horsepower designation
2558:Opposed piston engines
959:Hiller Aviation Museum
907:Piasecki HUP Retriever
897:M40 gun motor carriage
892:M12 gun motor carriage
842:
720:Noorduyn Norseman Mk.1
569:Beechcraft Staggerwing
552:Wright J-6-9 and R-975
374:radial engines in its
367:
343:and from their larger
326:Bellanca Special J-300
266:Beechcraft Staggerwing
200:Design and development
145:Wright R-975 Whirlwind
112:Piasecki HUP Retriever
96:Beechcraft Staggerwing
52:Air-cooled 9-cylinder
3529:V (inverted-V inline)
1885:Lage, Manual (2004).
1616:Lage (2004) pp152-163
1189:Power-to-weight ratio
1129:gear-driven, 10.15:1
1001:Queensland Air Museum
840:
361:
284:for the Army and the
3451:V (upright-V inline)
1868:on February 15, 2010
1771:Continental R-975-46
806:Vultee BT-15 Valiant
780:Townsend Thunderbird
730:North American NA-57
685:Ireland N-2B Neptune
675:Ford 4-AT-E Trimotor
635:Emsco B-5 Challenger
605:Curtiss-Wright CW-22
571:B17R, C17R, and D17R
282:Vultee BT-15 Valiant
274:Lockheed 10B Electra
270:Ford 4-AT-E Trimotor
135:over 7,000 by Wright
104:Vultee BT-15 Valiant
54:radial piston engine
2042:on January 25, 2019
2019:on January 25, 2019
1996:on January 25, 2019
1973:on January 25, 2019
1923:on October 31, 2010
1331:Related development
1199:
1075:972 cu in (15.93 L)
969:has a Wright R-975.
955:has a Wright R-975.
725:North American BT-9
580:Berliner-Joyce OJ-2
448:nitriding finishing
337:Pratt & Whitney
308:Floyd Bennett Field
306:flew non-stop from
278:North American BT-9
260:Operational history
233:naturally aspirated
156:Wright Aeronautical
100:North American BT-9
74:Wright Aeronautical
2891:designation system
2819:Inverted-V engines
2069:2009-06-28 at the
2031:Continental R9-A:
1954:2016-11-12 at the
1830:. This page has a
1589:2010-02-04 at the
1353:Comparable engines
1347:Wright J-6-7/R-760
1342:Wright J-6-5/R-540
1197:
1087:45.0 in (114.3 cm)
1081:43.0 in (109.2 cm)
936:Engines on display
919:self-propelled gun
843:
786:Travel Air B9-4000
715:Messerschmitt M 18
590:Cessna DC-6A Chief
539:Hispano-Suiza 9Qdr
402:self-propelled gun
368:
304:John Louis Polando
288:for the Navy. The
249:higher-compression
210:J-6 Whirlwind Nine
175:Continental Motors
91:Major applications
84:Continental Motors
3614:
3613:
2853:
2852:
2757:
2756:
2513:
2512:
2426:
2425:
1315:
1314:
1293:Continental R9-A
1212:Compression ratio
1206:Power, continuous
1180:Compression ratio
852:Grizzly I cruiser
833:Continental R-975
755:Ryan B-5 Brougham
533:Hispano-Suiza 9Qd
527:Hispano-Suiza 9Qc
521:Hispano-Suiza 9Qb
515:Hispano-Suiza 9Qa
444:Hispano-Wright 9Q
389:medium tank, the
372:Continental R-670
341:R-985 Wasp Junior
141:
140:
16:(Redirected from
3649:
2880:
2873:
2866:
2857:
2856:
2569:
2568:
2550:aircraft engines
2540:
2533:
2526:
2517:
2516:
2252:Whirlwind family
2248:
2247:
2114:aircraft engines
2100:
2093:
2086:
2077:
2076:
2050:
2049:
2047:
2038:, archived from
2027:
2026:
2024:
2015:, archived from
2004:
2003:
2001:
1992:, archived from
1981:
1980:
1978:
1969:, archived from
1945:type certificate
1931:
1930:
1928:
1922:
1915:
1900:
1876:
1875:
1873:
1867:
1860:
1835:
1829:
1828:
1827:
1815:
1809:
1807:
1806:
1805:
1796:, archived from
1788:
1782:
1780:
1779:
1778:
1766:
1760:
1758:
1757:
1756:
1747:, archived from
1739:
1733:
1731:
1730:
1729:
1720:, archived from
1717:Aircraft Engines
1712:
1706:
1704:
1703:
1702:
1693:, archived from
1685:
1679:
1677:
1676:
1675:
1666:, archived from
1658:
1652:
1649:
1643:
1642:
1640:
1638:
1623:
1617:
1614:
1608:
1605:
1594:
1581:
1580:
1578:
1573:on March 3, 2016
1572:
1566:, archived from
1565:
1555:
1549:
1548:
1546:
1544:
1539:. August 2, 1931
1529:
1523:
1520:
1507:
1504:
1495:
1492:
1481:
1478:
1469:
1466:
1455:
1452:
1443:
1440:
1417:
1414:
1405:
1402:
1337:Wright J-5/R-790
1324:Wright Whirlwind
1200:
1196:
1034:type certificate
791:Travel Air 6000B
700:Koolhoven F.K.56
680:Interstate XTD3R
650:Fokker Universal
595:Curtiss Kingbird
564:Avro Anson Mk IV
509:Hispano-Suiza 9Q
503:Continental R9-A
440:Hispano-Suiza 9Q
316:Istanbul, Turkey
293:parasite fighter
164:Wright Whirlwind
152:aircraft engines
132:
92:
62:
39:
30:R-975 Whirlwind
27:
26:
21:
3657:
3656:
3652:
3651:
3650:
3648:
3647:
3646:
3617:
3616:
3615:
3610:
3584:
3571:
3564:
3546:
3523:
3445:
3197:
3024:
2971:
2943:
2900:
2893:
2884:
2854:
2849:
2831:
2813:
2785:
2776:CD-200 (TD-300)
2753:
2671:By displacement
2665:
2573:
2560:
2552:
2544:
2514:
2509:
2486:
2459:
2422:
2396:
2321:
2239:
2180:
2116:
2104:
2071:Wayback Machine
2059:
2054:
2045:
2043:
2032:
2022:
2020:
2009:
1999:
1997:
1986:
1976:
1974:
1963:
1956:Wayback Machine
1926:
1924:
1920:
1913:
1897:
1871:
1869:
1865:
1858:
1844:
1839:
1838:
1825:
1823:
1817:
1816:
1812:
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1790:
1789:
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1776:
1774:
1768:
1767:
1763:
1754:
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1736:
1727:
1725:
1714:
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1709:
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1698:
1687:
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1673:
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1660:
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1655:
1650:
1646:
1636:
1634:
1625:
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1615:
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1597:
1591:Wayback Machine
1576:
1574:
1570:
1563:
1557:
1556:
1552:
1542:
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1526:
1521:
1510:
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1498:
1493:
1484:
1479:
1472:
1467:
1458:
1453:
1446:
1441:
1420:
1415:
1408:
1403:
1399:
1394:
1389:
1369:Bristol Mercury
1320:
1160:
1103:
1096:675 lb (306 kg)
1066:5.5 in (140 mm)
1057:5.0 in (127 mm)
1042:
1025:
938:
923:Sikorsky XHJS-1
835:
830:
554:
549:
464:
432:
356:
262:
202:
136:
130:
114:
110:
108:M4 Sherman tank
106:
102:
98:
90:
61:National origin
60:
23:
22:
15:
12:
11:
5:
3655:
3645:
3644:
3639:
3634:
3629:
3612:
3611:
3609:
3608:
3603:
3598:
3589:
3586:
3585:
3583:
3582:
3576:
3574:
3570:W (three-bank
3566:
3565:
3563:
3562:
3556:
3554:
3548:
3547:
3545:
3544:
3539:
3533:
3531:
3525:
3524:
3522:
3521:
3516:
3511:
3506:
3501:
3496:
3491:
3486:
3481:
3476:
3471:
3466:
3461:
3455:
3453:
3447:
3446:
3444:
3443:
3438:
3433:
3428:
3423:
3418:
3413:
3408:
3403:
3398:
3393:
3388:
3383:
3378:
3373:
3368:
3363:
3358:
3353:
3348:
3343:
3338:
3333:
3328:
3323:
3318:
3313:
3308:
3303:
3298:
3293:
3288:
3283:
3278:
3273:
3268:
3263:
3258:
3253:
3248:
3243:
3238:
3233:
3228:
3223:
3218:
3213:
3207:
3205:
3199:
3198:
3196:
3195:
3190:
3185:
3180:
3175:
3170:
3165:
3160:
3155:
3150:
3145:
3140:
3135:
3130:
3125:
3120:
3115:
3110:
3105:
3100:
3095:
3090:
3085:
3080:
3075:
3070:
3065:
3060:
3055:
3050:
3045:
3040:
3034:
3032:
3026:
3025:
3023:
3022:
3017:
3012:
3007:
3002:
2997:
2992:
2987:
2981:
2979:
2973:
2972:
2970:
2969:
2964:
2959:
2953:
2951:
2945:
2944:
2942:
2941:
2936:
2931:
2926:
2921:
2916:
2911:
2905:
2903:
2895:
2894:
2883:
2882:
2875:
2868:
2860:
2851:
2850:
2848:
2847:
2841:
2839:
2833:
2832:
2830:
2829:
2823:
2821:
2815:
2814:
2812:
2811:
2806:
2801:
2795:
2793:
2791:Radial engines
2787:
2786:
2784:
2783:
2778:
2773:
2767:
2765:
2759:
2758:
2755:
2754:
2752:
2751:
2746:
2741:
2736:
2731:
2726:
2721:
2716:
2711:
2706:
2701:
2696:
2691:
2686:
2681:
2675:
2673:
2667:
2666:
2664:
2663:
2658:
2653:
2648:
2643:
2638:
2633:
2628:
2623:
2618:
2613:
2608:
2603:
2598:
2593:
2588:
2583:
2577:
2575:
2566:
2554:
2553:
2543:
2542:
2535:
2528:
2520:
2511:
2510:
2508:
2507:
2502:
2496:
2494:
2488:
2487:
2485:
2484:
2479:
2473:
2471:
2461:
2460:
2458:
2457:
2452:
2447:
2442:
2436:
2434:
2428:
2427:
2424:
2423:
2421:
2420:
2418:R-2160 Tornado
2415:
2410:
2404:
2402:
2398:
2397:
2395:
2394:
2389:
2384:
2379:
2374:
2369:
2363:
2362:
2357:
2355:Duplex-Cyclone
2352:
2347:
2342:
2337:
2331:
2329:
2327:Cyclone family
2323:
2322:
2320:
2319:
2314:
2309:
2304:
2299:
2294:
2288:
2287:
2282:
2277:
2272:
2267:
2262:
2256:
2254:
2245:
2244:Wright radials
2241:
2240:
2238:
2237:
2232:
2227:
2222:
2217:
2212:
2207:
2202:
2197:
2191:
2189:
2182:
2181:
2179:
2178:
2173:
2168:
2163:
2158:
2153:
2148:
2143:
2138:
2133:
2127:
2125:
2123:inline engines
2118:
2117:
2103:
2102:
2095:
2088:
2080:
2074:
2073:
2058:
2057:External links
2055:
2053:
2052:
2029:
2006:
1983:
1940:The following
1938:
1937:
1934:reference page
1905:Curtiss-Wright
1901:
1896:978-0768009972
1895:
1882:
1879:reference page
1850:Curtiss-Wright
1845:
1843:
1840:
1837:
1836:
1810:
1783:
1761:
1734:
1707:
1680:
1653:
1644:
1631:Jornal O Globo
1618:
1609:
1595:
1584:reference page
1550:
1524:
1508:
1496:
1482:
1470:
1456:
1444:
1418:
1406:
1396:
1395:
1393:
1390:
1388:
1385:
1384:
1383:
1372:
1371:
1366:
1361:
1359:Alvis Leonides
1350:
1349:
1344:
1339:
1328:
1327:
1319:
1316:
1313:
1312:
1309:
1306:
1303:
1300:
1297:
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1289:
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1257:
1254:
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1249:
1245:
1244:
1241:
1238:
1235:
1232:
1230:
1227:
1223:
1222:
1219:
1216:
1213:
1210:
1209:Power, takeoff
1207:
1204:
1195:
1194:
1185:
1176:
1171:Specific power
1167:
1159:
1156:
1155:
1154:
1149:Reduction gear
1145:
1136:
1121:
1116:per cylinder,
1102:
1099:
1098:
1097:
1088:
1082:
1076:
1067:
1058:
1049:
1041:
1038:
1024:
1021:
1020:
1019:
1016:
998:
984:
970:
956:
937:
934:
933:
932:
926:
920:
914:
909:
904:
902:McDonnell XV-1
899:
894:
889:
884:
879:
874:
869:
864:
855:
849:
834:
831:
829:
828:
823:
818:
813:
808:
803:
798:
793:
788:
783:
777:
772:
767:
762:
760:Spartan C4-300
757:
752:
747:
742:
740:Pitcairn PA-19
737:
732:
727:
722:
717:
712:
710:McDonnell XV-1
707:
702:
697:
692:
687:
682:
677:
672:
667:
662:
657:
652:
647:
642:
637:
632:
627:
625:Dewoitine D.35
622:
620:Dewoitine D.31
617:
612:
607:
602:
597:
592:
587:
582:
577:
572:
566:
561:
555:
553:
550:
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545:
544:
543:
540:
537:
534:
531:
528:
525:
522:
519:
516:
513:
510:
507:
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501:
498:
495:
492:
489:
486:
483:
480:
477:
474:
471:
468:
463:
460:
431:
428:
409:tank destroyer
355:
352:
261:
258:
201:
198:
196:in the 1980s.
160:Curtiss-Wright
139:
138:
133:
127:
126:
123:
119:
118:
93:
87:
86:
81:
77:
76:
71:
67:
66:
65:United States
63:
57:
56:
50:
46:
45:
41:
40:
32:
31:
9:
6:
4:
3:
2:
3654:
3643:
3640:
3638:
3635:
3633:
3630:
3628:
3625:
3624:
3622:
3607:
3604:
3602:
3599:
3597:
3594:
3591:
3590:
3587:
3581:
3578:
3577:
3575:
3573:
3567:
3561:
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3557:
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3549:
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3507:
3505:
3502:
3500:
3497:
3495:
3492:
3490:
3487:
3485:
3482:
3480:
3477:
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3472:
3470:
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3457:
3456:
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3448:
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3437:
3434:
3432:
3429:
3427:
3424:
3422:
3419:
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3414:
3412:
3409:
3407:
3404:
3402:
3399:
3397:
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3387:
3384:
3382:
3379:
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3372:
3369:
3367:
3364:
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3359:
3357:
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3349:
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3344:
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3334:
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3329:
3327:
3324:
3322:
3319:
3317:
3314:
3312:
3309:
3307:
3304:
3302:
3299:
3297:
3294:
3292:
3289:
3287:
3284:
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3262:
3259:
3257:
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3252:
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3212:
3209:
3208:
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3200:
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3179:
3176:
3174:
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3169:
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3164:
3161:
3159:
3156:
3154:
3151:
3149:
3146:
3144:
3141:
3139:
3136:
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3119:
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3027:
3021:
3018:
3016:
3013:
3011:
3008:
3006:
3003:
3001:
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2988:
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2925:
2922:
2920:
2917:
2915:
2912:
2910:
2907:
2906:
2904:
2902:
2899:H (four-bank
2896:
2892:
2888:
2881:
2876:
2874:
2869:
2867:
2862:
2861:
2858:
2846:
2843:
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2727:
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2707:
2705:
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2700:
2697:
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2680:
2677:
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2672:
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2639:
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2624:
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2609:
2607:
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2599:
2597:
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2579:
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2541:
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2255:
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2236:
2233:
2231:
2228:
2226:
2223:
2221:
2218:
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2208:
2206:
2203:
2201:
2198:
2196:
2193:
2192:
2190:
2188:
2183:
2177:
2174:
2172:
2169:
2167:
2164:
2162:
2159:
2157:
2154:
2152:
2149:
2147:
2144:
2142:
2139:
2137:
2134:
2132:
2129:
2128:
2126:
2124:
2119:
2115:
2112:
2108:
2101:
2096:
2094:
2089:
2087:
2082:
2081:
2078:
2072:
2068:
2065:
2061:
2060:
2041:
2037:
2036:
2030:
2018:
2014:
2013:
2007:
1995:
1991:
1990:
1984:
1972:
1968:
1967:
1961:
1960:
1959:
1957:
1953:
1950:
1946:
1943:
1935:
1919:
1912:
1911:
1906:
1902:
1898:
1892:
1888:
1883:
1880:
1864:
1857:
1856:
1851:
1847:
1846:
1833:
1822:
1821:
1814:
1800:on 2009-10-04
1799:
1795:
1794:
1787:
1773:
1772:
1765:
1751:on 2009-08-27
1750:
1746:
1745:
1738:
1724:on 2017-07-28
1723:
1719:
1718:
1711:
1697:on 2009-08-27
1696:
1692:
1691:
1684:
1670:on 2013-12-02
1669:
1665:
1664:
1657:
1648:
1632:
1628:
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1613:
1604:
1602:
1600:
1592:
1588:
1585:
1569:
1562:
1561:
1554:
1538:
1534:
1528:
1519:
1517:
1515:
1513:
1503:
1501:
1491:
1489:
1487:
1477:
1475:
1465:
1463:
1461:
1451:
1449:
1439:
1437:
1435:
1433:
1431:
1429:
1427:
1425:
1423:
1413:
1411:
1401:
1397:
1382:
1379:
1378:
1377:
1376:
1375:Related lists
1370:
1367:
1365:
1362:
1360:
1357:
1356:
1355:
1354:
1348:
1345:
1343:
1340:
1338:
1335:
1334:
1333:
1332:
1325:
1322:
1321:
1310:
1307:
1304:
1301:
1298:
1295:
1292:
1291:
1287:
1284:
1281:
1278:
1275:
1272:
1269:
1268:
1264:
1261:
1258:
1255:
1253:
1250:
1247:
1246:
1242:
1239:
1236:
1233:
1231:
1228:
1225:
1224:
1220:
1218:Octane rating
1217:
1214:
1211:
1208:
1205:
1202:
1201:
1192:
1190:
1186:
1183:
1181:
1177:
1174:
1172:
1168:
1165:
1164:Power output:
1162:
1161:
1152:
1150:
1146:
1144:
1140:
1137:
1135:
1132:
1128:
1126:
1122:
1119:
1115:
1111:
1109:
1105:
1104:
1095:
1093:
1089:
1086:
1083:
1080:
1077:
1074:
1072:
1068:
1065:
1063:
1059:
1056:
1054:
1050:
1047:
1044:
1043:
1037:
1035:
1032:
1029:
1017:
1014:
1010:
1006:
1002:
999:
996:
992:
988:
985:
982:
978:
974:
971:
968:
964:
960:
957:
954:
950:
946:
943:
942:
941:
930:
927:
924:
921:
918:
915:
913:
910:
908:
905:
903:
900:
898:
895:
893:
890:
888:
885:
883:
880:
878:
875:
873:
870:
868:
867:Kellett XR-10
865:
862:
859:
856:
853:
850:
848:
845:
844:
839:
827:
824:
822:
819:
817:
814:
812:
809:
807:
804:
802:
799:
797:
794:
792:
789:
787:
784:
781:
778:
776:
773:
771:
768:
766:
763:
761:
758:
756:
753:
751:
748:
746:
743:
741:
738:
736:
733:
731:
728:
726:
723:
721:
718:
716:
713:
711:
708:
706:
703:
701:
698:
696:
693:
691:
688:
686:
683:
681:
678:
676:
673:
671:
670:Fokker T.VIII
668:
666:
663:
661:
658:
656:
653:
651:
648:
646:
643:
641:
638:
636:
633:
631:
628:
626:
623:
621:
618:
616:
613:
611:
608:
606:
603:
601:
598:
596:
593:
591:
588:
586:
583:
581:
578:
576:
573:
570:
567:
565:
562:
560:
557:
556:
541:
538:
535:
532:
529:
526:
523:
520:
517:
514:
511:
508:
505:
502:
499:
496:
493:
490:
487:
484:
481:
478:
475:
472:
469:
467:J-6-9 (R-975)
466:
465:
459:
457:
453:
449:
445:
441:
437:
427:
425:
421:
416:
412:
410:
407:
403:
400:
396:
392:
388:
384:
381:
377:
373:
365:
360:
351:
348:
346:
342:
338:
333:
331:
327:
323:
322:
317:
313:
309:
305:
301:
296:
294:
291:
287:
283:
279:
275:
271:
267:
257:
254:
250:
246:
245:cylinder head
240:
238:
234:
230:
226:
221:
219:
215:
211:
207:
197:
195:
191:
188:
183:
181:
176:
172:
167:
165:
161:
157:
154:built by the
153:
150:
146:
134:
129:
128:
124:
121:
120:
117:
113:
109:
105:
101:
97:
94:
89:
88:
85:
82:
79:
78:
75:
72:
70:Manufacturer
69:
68:
64:
59:
58:
55:
51:
48:
47:
42:
38:
33:
28:
19:
3642:Tank engines
3592:
3315:
2808:
2661:Tiara series
2350:Twin Cyclone
2306:
2284:
2046:December 15,
2044:, retrieved
2040:the original
2034:
2023:December 14,
2021:, retrieved
2017:the original
2011:
2000:December 14,
1998:, retrieved
1994:the original
1988:
1977:December 14,
1975:, retrieved
1971:the original
1965:
1939:
1927:December 14,
1925:, retrieved
1918:the original
1909:
1886:
1872:December 14,
1870:, retrieved
1863:the original
1854:
1842:Bibliography
1824:, retrieved
1819:
1813:
1802:, retrieved
1798:the original
1792:
1786:
1775:, retrieved
1770:
1764:
1753:, retrieved
1749:the original
1743:
1737:
1726:, retrieved
1722:the original
1716:
1710:
1699:, retrieved
1695:the original
1689:
1683:
1672:, retrieved
1668:the original
1662:
1656:
1647:
1635:. Retrieved
1630:
1621:
1612:
1577:December 15,
1575:, retrieved
1568:the original
1559:
1553:
1543:September 4,
1541:. Retrieved
1536:
1527:
1400:
1374:
1373:
1352:
1351:
1330:
1329:
1187:
1178:
1169:
1163:
1153:Direct drive
1147:
1138:
1125:Supercharger
1123:
1106:
1090:
1084:
1078:
1071:Displacement
1069:
1060:
1051:
1045:
1027:
1026:
939:
782:(as rebuilt)
690:Keystone XOK
665:Fokker C.XIV
640:Goodyear K-1
547:Applications
443:
439:
433:
419:
417:
413:
383:medium tanks
369:
349:
334:
320:
297:
263:
241:
237:supercharger
222:
217:
213:
209:
203:
187:World War II
184:
171:World War II
168:
158:division of
144:
142:
131:Number built
18:Wright J-6-9
3030:O (opposed)
2469:turboshafts
2156:T-4 Tornado
2151:T-3 Tornado
2146:T-2 Tornado
2141:T-1 Tornado
2136:Gipsy L-320
1221:Dry weight
1158:Performance
887:M18 Hellcat
847:Beech D-18C
406:M18 Hellcat
376:light tanks
345:R-1340 Wasp
312:Long Island
190:M18 Hellcat
125:1929-1950s
116:M18 Hellcat
3621:Categories
3542:V-1650 (L)
3504:V-1650 (P)
3226:R-370 (LB)
3203:R (radial)
2837:Turboprops
2572:By company
2465:Turboprops
2360:Cyclone 22
2064:R-975 page
2008:R-975E-3:
1985:R-975E-1:
1826:2009-12-15
1804:2009-12-15
1777:2009-12-16
1755:2009-12-15
1728:2009-12-17
1701:2009-12-15
1674:2009-12-25
1637:October 1,
1387:References
1139:Fuel type:
1134:gear ratio
1108:Valvetrain
1101:Components
1092:Dry weight
1009:Queensland
991:Birmingham
967:California
963:San Carlos
877:M4 Sherman
826:M4 Sherman
775:Timm T-840
660:Fokker C-7
655:Fokker C-5
391:M4 Sherman
328:high-wing
3593:See also:
3256:R-540 (K)
3251:R-540 (W)
3231:R-370 (K)
3173:O-540 (L)
3168:O-540 (F)
3133:O-360 (L)
3128:O-360 (C)
3098:O-200 (F)
3093:O-200 (C)
2432:Turbojets
2340:Cyclone 9
2335:Cyclone 7
2185:Lawrance
1270:R-975E-3
1248:R-975E-1
1120:-actuated
1085:Diameter:
1028:Data from
1013:Australia
1005:Caloundra
977:Pensacola
882:M7 Priest
497:R-975E-C2
399:M7 Priest
330:monoplane
194:M1 Abrams
122:Produced
80:Built by
2563:Gasoline
2408:L-3 Gale
2111:Lawrance
2067:Archived
1962:R-975E:
1952:Archived
1907:(1983),
1852:(1940),
1587:Archived
1318:See also
1131:impeller
912:Ram tank
858:Kangaroo
816:Waco JYO
811:Waco JTO
491:R-975E-3
485:R-975E-1
473:R-975-20
462:Variants
395:Ram tank
321:Cape Cod
272:and the
3560:VG-1410
3441:XR-7755
2967:IV-2220
2962:IV-2040
2957:IV-1430
2934:XH-3730
2929:XH-3130
2924:XH-2600
2919:XH-2470
2914:XH-2240
2827:XI-1430
2492:Ramjets
2345:Cyclone
2187:radials
2171:IV-1560
2166:IV-1460
2121:Wright
1305:10.15:1
1282:10.15:1
1226:R-975E
1118:pushrod
1079:Length:
995:Alabama
981:Florida
953:Arizona
801:VL Pyry
559:ASJA L2
438:as the
318:in the
169:During
3596:X-1800
3580:W-2779
3519:V-3420
3514:V-1950
3509:V-1710
3499:V-1570
3494:V-1560
3489:V-1510
3484:V-1460
3479:V-1440
3474:V-1400
3469:V-1237
3464:V-1150
3436:R-4360
3431:R-4090
3426:R-3350
3421:R-2800
3416:R-2600
3411:R-2180
3406:R-2160
3401:R-2060
3396:R-2000
3391:R-1860
3386:R-1830
3381:R-1820
3376:R-1750
3371:R-1690
3366:R-1670
3361:R-1640
3356:R-1535
3351:R-1510
3346:R-1454
3341:R-1340
3336:R-1300
3331:R-1044
3321:DR-980
3193:O-1230
2939:H-4070
2909:H-1640
2845:TP-500
2781:CD-300
2771:CD-155
2749:IO-550
2729:IO-370
2724:IO-368
2719:IO-360
2714:IO-346
2413:R-1200
2401:Others
2392:R-4090
2387:R-3350
2382:R-2600
2377:R-1820
2372:R-1750
2367:R-1300
2317:R-1670
2312:R-1510
2176:V-1950
2107:Wright
1893:
1326:series
1203:Engine
1143:octane
1114:valves
1062:Stroke
949:Tucson
917:Sexton
872:M3 Lee
479:R-975E
456:Brazil
404:, the
387:M3 Lee
225:stroke
149:radial
3537:V-770
3459:V-720
3326:R-985
3316:R-975
3311:R-915
3306:R-830
3301:R-790
3296:R-760
3291:R-755
3286:R-720
3281:R-680
3276:R-670
3271:R-600
3266:R-550
3261:R-545
3246:R-500
3241:R-440
3236:R-420
3221:R-270
3216:R-265
3211:R-250
3188:O-805
3183:O-580
3178:O-550
3163:O-520
3158:O-480
3153:O-470
3148:O-435
3143:O-425
3138:O-405
3123:O-335
3118:O-300
3113:O-290
3108:O-235
3103:O-205
3088:O-190
3083:O-180
3078:O-175
3073:O-170
3068:O-150
3063:O-145
3058:O-100
3020:L-825
3015:L-510
3010:L-440
3005:L-410
3000:L-390
2995:L-375
2990:L-365
2985:L-330
2809:R-975
2804:R-670
2799:R-544
2744:O-526
2739:O-520
2734:O-470
2709:O-300
2704:O-280
2699:O-240
2694:O-205
2689:O-200
2684:O-190
2679:O-170
2307:R-975
2302:R-790
2297:R-760
2292:R-540
2285:J-6-9
2280:J-6-7
2275:J-6-5
2161:V-720
1921:(PDF)
1914:(PDF)
1866:(PDF)
1859:(PDF)
1571:(PDF)
1564:(PDF)
1392:Notes
1302:6.3:1
1279:6.3:1
1259:7.8:1
1256:6.1:1
1237:7.8:1
1234:5.1:1
1184:6.3:1
1046:Type:
975:near
436:Spain
310:, on
218:R-975
214:J-6-9
212:, or
206:R-790
49:Type
3053:O-90
3048:O-45
3043:O-40
3038:O-15
2656:E225
2651:E185
2646:E165
2641:C145
2636:C140
2631:C125
2626:C115
2505:RJ55
2500:RJ47
2109:and
2048:2009
2025:2009
2002:2009
1979:2009
1929:2009
1891:ISBN
1874:2009
1639:2018
1579:2009
1545:2013
1053:Bore
420:R9-A
324:, a
302:and
280:and
229:bore
143:The
2621:C90
2616:C85
2611:C75
2606:A80
2601:A75
2596:A70
2591:A65
2586:A50
2581:A40
2482:T49
2477:T35
2455:J67
2450:J65
2445:J61
2440:J59
2270:J-5
2265:J-4
2260:J-3
2235:L-5
2230:L-4
2225:L-3
2220:L-2
2215:L-1
2210:J-2
2205:J-1
2200:C-2
2195:A-3
1141:80
1031:FAA
1003:in
989:in
961:in
947:in
454:in
442:or
339:'s
314:to
253:RPM
3623::
1958::
1629:.
1598:^
1535:.
1511:^
1499:^
1485:^
1473:^
1459:^
1447:^
1421:^
1409:^
1308:91
1285:80
1262:73
1240:73
1112:2
1011:,
1007:,
993:,
979:,
965:,
951:,
458:.
380:M2
173:,
2879:e
2872:t
2865:v
2565:)
2561:(
2539:e
2532:t
2525:v
2467:/
2131:E
2099:e
2092:t
2085:v
2051:.
2028:.
2005:.
1982:.
1936:.
1899:.
1881:.
1834:.
1808:.
1781:.
1678:.
1641:.
1593:.
1547:.
1191::
1182::
1173::
1151::
1127::
1110::
1094::
1073::
1064::
1055::
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
