374:
354:
night so that the engine oil would not congeal and prevent the engine from starting the next day. These problems took too long to remedy and the engine gained a bad reputation. To make matters worse, mechanics and pilots unfamiliar with the different nature of the engine, tended to blame the Sabre for problems that were caused by not following correct procedures. This was exacerbated by the representatives of the competing Rolls-Royce company, which had its own agenda. In 1944, Rolls-Royce produced a similar design prototype called the
329:
236:. The H-block has a compact layout, consisting of two horizontally opposed engines, one atop or beside the other. Since the cylinders are opposed, the motion in one is balanced by the motion on the opposing side, eliminating both first order and second order vibration. In these new designs, Napier chose air cooling but in service, the rear cylinders proved to be impossible to cool properly, which made the engines unreliable.
479:
31:
245:
291:, as well as to decrease the engine's sensitivity to detonation, which was prevalent with the poor quality, low-octane fuels in use at the time. Halford had worked for Ricardo 1919–1922 at their London office and Halford's 1923 office was in Ladbroke Grove, North Kensington, only a few miles from Ricardo, while Halford's 1929 office was even closer (700 yards), and while in 1927 Ricardo started work with
389:. Without the advanced supercharger, the engine's performance over 20,000 ft (6,100 m) fell off rapidly and pilots flying Sabre-powered aircraft, were generally instructed to enter combat only below this altitude. At low altitude, both planes were formidable. As air superiority over Continental Europe was slowly gained, Typhoons were increasingly used as
295:
on a line of sleeve-valve designs, Halford started work with Napier, using the Dagger as the basis. The layout of the H-block, with its inherent balance and the Sabre's relatively short stroke, allowed it to run at a higher rate of rotation, to deliver more power from a smaller displacement, provided
353:
Quality control proved to be inadequate, engines were often delivered with improperly cleaned castings, broken piston rings and machine cuttings left inside the engine. Mechanics were overworked trying to keep the Sabres running and during cold weather they had to run them every two hours during the
349:
from their Taurus engine forgings. These nitrided austenitic steel sleeves were the result of many years of intensive sleeve development, experience that Napier did not have. Air filters had to be fitted when a new sleeve problem appeared in 1944 when aircraft were operating from
Normandy soil with
311:
failed as the next generation of high power engines and to keep Napier in the aero-engine industry. The first Sabre engines were ready for testing in
January 1938, although they were limited to 1,350 hp (1,010 kW). By March, they were passing tests at 2,050 hp (1,530 kW) and by
299:
The Napier company decided first to develop a large 24 cylinder liquid–cooled engine, capable of producing at least 2,000 hp (1,500 kW) in late 1935. Although the company continued with the opposed H layout of the Dagger, this new design positioned the cylinder blocks horizontally and it
340:
Problems arose as soon as mass production began. Prototype engines had been hand-assembled by Napier craftsmen and it proved to be difficult to adapt it to assembly-line production techniques. The sleeves often failed due to the way they were manufactured from chrome-molybdenum steel, leading to
316:'s 100-hour test, the first production versions were delivering 2,200 hp (1,600 kW) from their 2,238 cubic inch (37 litre) displacements. By the end of the year, they were producing 2,400 hp (1,800 kW). The contemporary 1940
416:
four-row, 28-cylinder radial produced 3,000 hp (2,200 kW) at first and later types produced 3,800 hp (2,800 kW), but these required almost twice the displacement in order to do so, 4,360 cubic inches (71 litres).
286:
engines would be unlikely to produce much more than 1,500 hp (1,100 kW), a figure that many companies were eyeing for next generation engines. To pass this limit, the sleeve valve would have to be used, to increase
361:
Napier seemed complacent and tinkered with the design for better performance. In 1942, it started a series of projects to improve its high-altitude performance, with the addition of a three-speed, two-stage
300:
was to use sleeve valves. All of the accessories were grouped conveniently above and below the cylinder blocks, rather than being at the front and rear of the engine, as in most contemporary designs.
381:
By 1944, the Sabre V was delivering 2,400 horsepower (1,800 kilowatts) consistently and the reputation of the engine started to improve. This was the last version to enter service, being used in the
336:
was the first operational Sabre-powered aircraft, entering service with the RAF in mid-1941. Problems with both the Sabre engine and the airframe nearly led to the
Typhoon's withdrawal from service.
412:
Development continued and the later Sabre VII delivered 3,500 hp (2,600 kW) with a new supercharger. By the end of World War II, there were several engines in the same power class. The
1562:
Allied
Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II
186:
after the war led to the quick demise of the Sabre, as there was less need for high power military piston aero engines and because Napier turned its attention to developing
271:(30 litres), so an advance of some 50 per cent would be needed. This called for radical changes and while many companies tried to build such an engine, none succeeded.
155:
piston aircraft engines in the world, developing from 2,200 hp (1,600 kW) in its earlier versions to 3,500 hp (2,600 kW) in late-model prototypes.
260:). Such power output was needed to propel aircraft large enough to carry large fuel loads for long range flights. A typical large engine of the era, the
1067:
The Napier-Heston Racer used the first production Sabre engine. The world-record contender crashed during early tests and the project was discontinued.
500:
2,240 hp (1,670 kW). As Mk VA with Hobson fuel injection: preliminary flight development engine for Sabre V series. Used in Hawker
Tempest I.
370:, which ended the supercharger project immediately and devoted the whole company to solving the production problems, which was achieved quickly.
966:
117 gallons/hour (532 L/hr) at maximum cruise, F.S. supercharger gear; 241 gallons/hour (1,096 L/hr) at maximum combat rating, F.S. supercharger
512:
2,600 hp (1,900 kW). Mk V with Hobson-R.A.E fuel injection, single-lever throttle and propeller control: used in Hawker
Tempest VI.
708:
256:
During the 1930s, studies showed the need for engines capable of developing one horsepower per cubic inch of displacement (about 45 kW/
1710:
1242:
Industry and Air Power The
Expansion Of British Aircraft Production 1935-1941, Sebastian Ritchie 2007, Routledge Taylor and Francis Group,
170:, which was designed to capture the world speed record. Other aircraft using the Sabre were early prototype and production variants of the
731:
303:
The Air
Ministry supported the Sabre programme with a development order in 1937 for two reasons: to provide an alternative engine if the
345:. The Ministry of Aircraft Production was responsible for the development of the engine and arranged for sleeves to be machined by the
695:
1654:
1089:, the lubricants in use in the 1940s thickened up at low temperatures, thus preventing the Sabre from "picking-up" when started.
1881:
972:
47 pints/hour (27 L/hr) at maximum cruise 3,250 rpm and +7 psi (0.48 bar, 14"); 71 pints/hour (40 L/hr) at war emergency power
906:
1597:
1282:
1191:
1157:
413:
1664:
1297:
506:
2,600 hp (1,900 kW). Developed MK II, redesigned supercharger with increased boost, redesigned induction system.
1583:
1381:
1208:
1174:
1140:
1123:
1669:
1636:
1618:
1569:
1528:
1486:
1471:
1457:
1424:
1247:
676:
657:
1866:
1703:
752:
1277:
I Kept No Diary-60 Years with Marine
Diesels, Automobile and Aero Engines, F.R. Banks 1978, Airlife Publications,
522:
cooling fan: used in 2 Hawker
Tempest Vs modified to use Napier designed annular radiators; also in experimental
210:, which had been a very successful engine between the World Wars and in modified form had powered several of the
1871:
1659:
873:
737:
394:
405:), since it was the fastest of all the Allied fighters at low levels. Later, the Tempest destroyed about 20
366:, when the basic engine was still not running reliably. In December 1942, the company was purchased by the
296:
that good volumetric efficiency could be maintained (with better breathing), which sleeve valves could do.
206:
Prior to the Sabre, Napier had been working on large aero engines for some time. Their most famous was the
1696:
723:
320:
II was generating just over 1,000 hp (750 kW) from a 1,647 cubic inch (27 litre) displacement.
1674:
1655:
Cutaway illustration of a Napier Sabre drawn by Max Millar (uncredited) and coloured in by Makoto Oiuchi
1548:
1535:
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1016:
557:
533:
346:
292:
261:
1043:
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355:
152:
742:
1876:
377:
A 2,400hp Sabre inside a mock-up of an aircraft nose, mounted on a truck for display purposes
221:
cars. By the late 1920s, the Lion was no longer competitive and work started on replacements.
1031:
976:
747:
288:
1681:
1553:
1540:
1509:
1497:
1441:
406:
55:
532:
3,055 hp (2,278 kW). Mk VA strengthened to withstand high powers produced using
438:(1940) 2,300 hp (1,700 kW). Experimental 0.332:1 propeller reduction gear ratio.
8:
996:
940:
866:
807:
631:
601:
491:
304:
249:
171:
167:
108:
1505:"Napier Flight Development (article and images on Napier's test and development centre).
1886:
1719:
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317:
144:
80:
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1153:
1136:
1119:
955:
701:
665:
625:
342:
308:
218:
175:
936:* 2,850 hp (2,130 kW) at 3,800 rpm and +13 psi (0.9 bar, 56") intake boost
1203:
Engines and Enterprise: The Life and Work of Sir Harry Ricardo, John Reynolds,1999
1169:
Engines and Enterprise: The Life and Work of Sir Harry Ricardo, John Reynolds,1999
1135:
Engines and Enterprise: The Life and Work of Sir Harry Ricardo, John Reynolds,1999
1118:
Engines and Enterprise: The Life and Work of Sir Harry Ricardo, John Reynolds,1999
1006:
661:
367:
214:
444:
2,200 hp (1,600 kW). Reduction gear ratio 0.274:1: mainly used in early
1845:
1741:
1722:
1301:
1011:
920:
798:
637:
619:
575:
The engine has been used in many aircraft, including two mass-produced fighters.
543:
523:
402:
398:
179:
136:
58:
1186:
Boxkite to Jet - the remarkable career of Frank B Halford, Douglas Taylor, 1999,
1152:
Boxkite to Jet - the remarkable career of Frank B Halford, Douglas Taylor, 1999,
1792:
1751:
1631:. London, UK: Chatto & Windus in association with William Heinemann, 1953.
1417:
Pilot's Notes for Typhoon Marks IA and IB; Sabre II or IIA engine (2nd edition)
1294:
1001:
881:
613:
589:
584:
547:
465:
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445:
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163:
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104:
100:
70:
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454:
2,235 hp (1,667 kW). Revised ignition system: maximum boost +9 lbs.
275:
233:
229:
140:
1813:
1797:
1787:
1782:
1076:
21 Suffolk St, Westminster, London, a little cul-de-sac off Pall Mall East.
861:
855:
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283:
279:
195:
191:
148:
129:
52:
1829:
1756:
869:
519:
211:
207:
46:
1450:
World Encyclopedia of Aero Engines: From the Pioneers to the Present Day
669:
373:
328:
1736:
910:
885:
850:
834:
707:
A Sabre IIA engine has been restored by the Friends Association of the
691:
268:
183:
1688:
244:
1430:
1086:
187:
566:(1946) 3,500 horsepower. Intended for Napier 500mph tailless fighter
897:
782:
490:
2,250 hp (1,680 kW). Similar to Mk IIA, tailored for the
225:
158:
The first operational aircraft to be powered by the Sabre were the
121:
49:
1521:
The Power to Fly: The Development of the Piston Engine in Aviation
727:
478:
125:
30:
1437:"A Co-operative Challenger (article and images on Heston Racer).
133:
1576:
Engines and Enterprise: The Life and Work of Sir Harry Ricardo
341:
seized cylinders, which caused the loss of the sole prototype
644:
257:
1233:, p. 309. www.flightglobal.com. Retrieved: 9 November 2009.
248:
The first aircraft designed around the Sabre engine – the
1590:
Boxkite to Jet - the remarkable career of Frank B Halford
267:, developed about 1,200 hp (890 kW) from 1,830
151:. The engine evolved to become one of the most powerful
1649:
1613:. London: Samson Low, Marston & Company, Ltd 1946.
1332:
1330:
1328:
748:
World of WearableArt & Classic Cars Museum, Nelson
1564:. Warrendale, Pennsylvania: SAE International, 1995.
1325:
595:
397:. The Tempest became the principal destroyer of the
38:Napier Sabre cutaway at the London Science Museum.
622:, prototype (2 built (LA610, VP207), 485 mph)
166:; the first aircraft powered by the Sabre was the
474:2,065 hp (1,540 kW). Similar to Mk VII.
217:competitors in 1923 and 1927, as well as several
1858:
1479:Hawker Aircraft Since 1920 (3rd revised edition)
1536:"2,200 h.p. Napier Sabre (article and images).
872:drive to gear-driven, single-stage, two-speed
1704:
1466:. Marlborough, UK: Airlife Publishing, 2003.
1433:No. 452, Volume 38, Number 12, December 2010.
711:and is on public display at the Engines Hall.
759:
556:(1941) Three-speed, two-stage supercharger,
542:3,000 hp (2,200 kW). Intended for
1221:
1219:
1217:
939:3,040 hp (2,270 kW) at 4,000 rpm
732:Cambridge University Engineering Department
1711:
1697:
1501:No. 1926, Volume XLVIII, 22 November 1945.
772:
716:Sectioned Napier engines on public display
709:Museo Nacional de Aeronáutica de Argentina
645:Restoration project and engines on display
518:2,310 hp (1,720 kW). Mk VA with
460:2,400 hp (1,800 kW). Four choke
1611:Jane's All The World's Aircraft 1945–1946
1464:British Piston Engines and Their Aircraft
1452:. 5th edition, Stroud, UK: Sutton, 2006.
1429:"A Real Contender (article and images) "
1098:List from Lumsden unless otherwise noted.
696:Birmingham Museum of Science and Industry
282:engine. In it, he wrote that traditional
201:
1253:
1214:
477:
372:
327:
278:published a study on the concept of the
252:which crashed during early flight tests.
243:
1718:
1493:"Napier Sabre VII (article and images).
1288:
781:24-cylinder supercharged liquid-cooled
1859:
1549:"Napier Sabre II (article and images).
1544:No. 1829, Volume XLV, 13 January 1944.
1445:No. 1790, Volume XLIII, 15 April 1943.
604:, only in 21 early production aircraft
1692:
1660:The Sabre-powered Napier-Heston Racer
432:(1939) 2,000 hp (1,500 kW).
414:Pratt & Whitney R-4360 Wasp Major
312:June 1940, when the Sabre passed the
182:prototype. The rapid introduction of
1557:No. 1839, Volume XLV, 23 March 1944.
1419:. London: Crecy Publications, 2004.
16:1930s British aircraft piston engine
812:2,240 cu in (36.7 L)
13:
1685:advertisement for the Sabre engine
1621:(1989 copy by Crescent Books, NY.)
1603:
224:Napier followed the Lion with two
14:
1898:
1643:
1513:No. 1961, Volume L, 25 July 1946.
919:Liquid cooled: 70% water and 30%
677:Hawker Typhoon Preservation Group
658:Canadian Aviation Heritage Centre
596:Limited production and prototypes
1670:The Greatest Engines of All Time
1650:Napier Power Heritage Trust site
1554:Flight and The Aircraft Engineer
1541:Flight and The Aircraft Engineer
1510:Flight and The Aircraft Engineer
1498:Flight and The Aircraft Engineer
1442:Flight and The Aircraft Engineer
753:Canada Aviation and Space Museum
494:: 25 manufactured and installed.
29:
1409:
1396:
1387:
1375:
1366:
1357:
1348:
1339:
1316:
1307:
1271:
1262:
1236:
1092:
1079:
675:Sabre IIa, Serial Number 2484,
570:
536:. Larger supercharger impeller.
1372:Application lists from Lumsden
1322:Air Ministry 1943, pp. 24, 25.
1197:
1180:
1163:
1146:
1129:
1112:
1070:
1061:
927:
1:
1882:1930s aircraft piston engines
1313:Sheffield March 1944, p. 310.
1049:
923:coolant mixture, pressurised.
843:
818:82.25 in (2,089 mm)
738:Royal Air Force Museum London
441:Sabre II (production variant)
395:RAF Second Tactical Air Force
323:
1578:. Stroud, UK: Sutton, 1999.
1384:Retrieved: 21 November 2009.
1085:Unlike current "multigrade"
1054:
839:2,360 pounds (1,070 kg)
7:
1523:. Allen & Unwin, 1971.
1022:Pratt & Whitney XH-3130
985:
684:Preserved on public display
420:
350:its abrasive, gritty dust.
10:
1903:
1304:Retrieved on 17 July 2009.
1268:Aeroplane 2010, pp. 65–66.
1017:Pratt & Whitney X-1800
830:46 in (1,200 mm)
824:40 in (1,000 mm)
803:4.75 in (121 mm)
578:
262:Pratt & Whitney R-1830
239:
1838:
1822:
1806:
1775:
1729:
1592:. Derby, UK: RRHT, 1999.
1402:Flight 1945, pp. 550-553.
913:with three scavenge pumps
794:5.0 in (127 mm)
760:Specifications (Sabre VA)
558:contra-rotating propeller
347:Bristol Aeroplane Company
37:
28:
23:
1481:. London: Putnam, 1991.
1227:2,200 h.p. Napier Sabre
1105:
1044:List of aircraft engines
874:centrifugal supercharger
534:Water/Methanol injection
385:and its derivative, the
368:English Electric Company
1867:Napier aircraft engines
1676:NAPIER SABRE 3000 B.H.P
1665:The Hawker Tempest Page
1609:Bridgman, Leonard, ed.
981:1.29 hp/lb (2.06 kW/kg)
951:1.36 hp/inÂł (59.9 kW/L)
773:General characteristics
560:; test flown in Fo.108.
1776:Turboprop / Turboshaft
785:aircraft piston engine
694:(example on loan from
483:
378:
337:
253:
202:Design and development
1032:Wright R-2160 Tornado
977:Power-to-weight ratio
743:London Science Museum
481:
376:
331:
289:volumetric efficiency
247:
1872:Sleeve valve engines
1393:Lumsden 2003, p.176.
1363:Flight 1945, p. 552.
1336:Flight 1945, p. 551.
1300:23 June 2012 at the
704:, Polk City, Florida
407:Messerschmitt Me 262
190:engines such as the
1625:Clostermann, Pierre
1382:CAHC "Workshop One"
1354:Flight 1946, p. 91.
1345:Mason 1991, p. 331.
1259:Flight 1945, p.550.
997:Daimler-Benz DB 604
941:war emergency power
724:Imperial War Museum
632:Napier-Heston Racer
602:Blackburn Firebrand
492:Blackburn Firebrand
305:Rolls-Royce Vulture
250:Napier-Heston Racer
172:Blackburn Firebrand
168:Napier-Heston Racer
145:D. Napier & Son
141:Major Frank Halford
109:Napier-Heston Racer
81:D. Napier & Son
1517:Setright, L. J. K.
1477:Mason, Francis K.
991:Comparable engines
484:
379:
338:
318:Rolls-Royce Merlin
254:
228:designs: the H-16
96:Major applications
1854:
1853:
1588:Taylor, Douglas.
1547:Sheffield, F. C.
1534:Sheffield, F. C.
1027:Rolls-Royce Eagle
964:Fuel consumption:
956:Compression ratio
702:Fantasy of Flight
666:McGill University
650:Under restoration
626:Martin-Baker MB 3
524:Vickers Warwick V
464:: Mainly used in
393:, notably by the
343:Martin-Baker MB 3
309:Bristol Centaurus
219:land speed record
176:Martin-Baker MB 3
114:
113:
1894:
1713:
1706:
1699:
1690:
1689:
1574:Reynolds, John.
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1225:23 March 1944. "
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1068:
1065:
1007:Junkers Jumo 222
970:Oil consumption:
662:Macdonald Campus
546:; tested in the
482:Napier Sabre III
466:Hawker Tempest V
462:S.U. carburettor
215:Schneider Trophy
178:prototype and a
97:
67:
33:
21:
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1639:(2004 edition).
1606:
1604:Further reading
1560:White, Graham.
1462:Lumsden, Alec.
1448:Gunston, Bill.
1412:
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1302:Wayback Machine
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921:ethylene glycol
917:Cooling system:
905:High pressure:
884:injection-type
846:
775:
762:
647:
638:Vickers Warwick
598:
581:
573:
446:Hawker Typhoons
429:Sabre I (E.107)
423:
403:Fieseler Fi 103
399:V-1 flying bomb
391:fighter-bombers
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293:Bristol Engines
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66:National origin
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1644:External links
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1600:
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1584:978-0750917124
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1415:Air Ministry.
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1287:
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1261:
1252:
1235:
1213:
1209:978-0750917124
1196:
1179:
1175:978-0750917124
1162:
1145:
1141:978-0750917124
1128:
1124:978-0750917124
1110:
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1069:
1059:
1058:
1056:
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1048:
1047:
1046:
1035:
1034:
1029:
1024:
1019:
1014:
1009:
1004:
1002:Dobrynin VD-4K
999:
987:
984:
983:
982:
973:
967:
961:
952:
947:Specific power
943:
937:
929:
926:
925:
924:
914:
909:and full flow
900:
888:
876:
858:
845:
842:
841:
840:
831:
825:
819:
813:
804:
795:
786:
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761:
758:
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745:
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720:
719:
717:
713:
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688:
687:
685:
681:
680:
673:
654:
653:
651:
646:
643:
642:
641:
635:
629:
623:
617:
614:Folland Fo.108
611:
605:
597:
594:
593:
592:
590:Hawker Typhoon
587:
585:Hawker Tempest
580:
577:
572:
569:
568:
567:
564:
561:
554:
551:
548:Folland Fo.108
540:
537:
530:
527:
516:
513:
510:
507:
504:
501:
498:
495:
488:
476:
475:
472:
469:
458:
455:
452:
449:
442:
439:
436:
433:
430:
422:
419:
409:jet aircraft.
387:Hawker Tempest
383:Hawker Typhoon
334:Hawker Typhoon
325:
322:
241:
238:
203:
200:
164:Hawker Tempest
160:Hawker Typhoon
139:, designed by
112:
111:
105:Hawker Typhoon
101:Hawker Tempest
98:
92:
91:
88:
84:
83:
78:
74:
73:
71:United Kingdom
68:
62:
61:
44:
40:
39:
35:
34:
26:
25:
15:
9:
6:
4:
3:
2:
1899:
1888:
1885:
1883:
1880:
1878:
1877:Boxer engines
1875:
1873:
1870:
1868:
1865:
1864:
1862:
1847:
1844:
1843:
1841:
1837:
1831:
1828:
1827:
1825:
1823:Gas-generator
1821:
1815:
1812:
1811:
1809:
1805:
1799:
1796:
1794:
1791:
1789:
1786:
1784:
1783:Coupled Naiad
1781:
1780:
1778:
1774:
1768:
1765:
1763:
1760:
1758:
1755:
1753:
1750:
1748:
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1732:
1728:
1724:
1721:
1714:
1709:
1707:
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1700:
1695:
1694:
1691:
1684:
1683:
1678:
1677:
1673:
1671:
1668:
1666:
1663:
1661:
1658:
1656:
1653:
1651:
1648:
1647:
1638:
1637:0-297-84619-1
1634:
1630:
1626:
1623:
1620:
1619:0-517-67964-7
1616:
1612:
1608:
1607:
1599:
1598:1 872922 16 3
1595:
1591:
1587:
1585:
1581:
1577:
1573:
1571:
1570:1-56091-655-9
1567:
1563:
1559:
1556:
1555:
1550:
1546:
1543:
1542:
1537:
1533:
1530:
1529:0-04-338041-7
1526:
1522:
1518:
1515:
1512:
1511:
1506:
1503:
1500:
1499:
1494:
1491:
1488:
1487:0-85177-839-9
1484:
1480:
1476:
1473:
1472:1-85310-294-6
1469:
1465:
1461:
1459:
1458:0-7509-4479-X
1455:
1451:
1447:
1444:
1443:
1438:
1435:
1432:
1428:
1426:
1425:0-85979-033-9
1422:
1418:
1414:
1413:
1399:
1390:
1383:
1378:
1369:
1360:
1351:
1342:
1333:
1331:
1329:
1319:
1310:
1303:
1299:
1296:
1291:
1284:
1283:0 9504543 9 7
1280:
1274:
1265:
1256:
1249:
1248:0-7146-4343-2
1245:
1239:
1232:
1228:
1222:
1220:
1218:
1210:
1206:
1200:
1193:
1192:1 872922 16 3
1189:
1183:
1176:
1172:
1166:
1159:
1158:1 872922 16 3
1155:
1149:
1142:
1138:
1132:
1125:
1121:
1115:
1111:
1095:
1088:
1082:
1073:
1064:
1060:
1045:
1042:
1041:
1040:
1039:
1038:Related lists
1033:
1030:
1028:
1025:
1023:
1020:
1018:
1015:
1013:
1010:
1008:
1005:
1003:
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994:
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992:
980:
978:
974:
971:
968:
965:
962:
959:
957:
953:
950:
948:
944:
942:
938:
935:
934:Power output:
932:
931:
922:
918:
915:
912:
908:
904:
901:
899:
896:
892:
889:
887:
883:
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877:
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871:
868:
865:
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859:
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836:
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829:
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652:
649:
648:
639:
636:
633:
630:
627:
624:
621:
618:
615:
612:
609:
608:Fairey Battle
606:
603:
600:
599:
591:
588:
586:
583:
582:
576:
565:
562:
559:
555:
552:
549:
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531:
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384:
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359:
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351:
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344:
335:
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321:
319:
315:
310:
306:
301:
297:
294:
290:
285:
281:
277:
276:Harry Ricardo
272:
270:
266:
263:
259:
251:
246:
237:
235:
232:and the H-24
231:
227:
222:
220:
216:
213:
209:
199:
197:
193:
189:
185:
181:
177:
173:
169:
165:
161:
156:
154:
150:
146:
143:and built by
142:
138:
135:
131:
127:
126:liquid-cooled
123:
122:H-24-cylinder
120:is a British
119:
110:
106:
102:
99:
94:
93:
90:January 1938
89:
86:
85:
82:
79:
77:Manufacturer
76:
75:
72:
69:
64:
63:
60:
57:
54:
51:
48:
47:Liquid-cooled
45:
42:
41:
36:
32:
27:
22:
19:
1766:
1723:aero engines
1680:
1675:
1629:The Big Show
1628:
1610:
1589:
1575:
1561:
1552:
1539:
1520:
1508:
1496:
1478:
1463:
1449:
1440:
1416:
1410:Bibliography
1398:
1389:
1377:
1368:
1359:
1350:
1341:
1318:
1309:
1295:Napier Sabre
1290:
1273:
1264:
1255:
1238:
1230:
1199:
1182:
1165:
1148:
1131:
1114:
1094:
1081:
1072:
1063:
1037:
1036:
990:
989:
975:
969:
963:
954:
945:
933:
916:
902:
890:
882:Hobson-R.A.E
879:Fuel system:
878:
862:Supercharger
860:
856:Sleeve valve
849:
833:
827:
821:
815:
808:Displacement
806:
797:
788:
778:
767:
764:
763:
730:(donated by
574:
571:Applications
424:
411:
380:
364:supercharger
360:
352:
339:
314:Air Ministry
302:
298:
284:poppet valve
280:sleeve valve
273:
269:cubic inches
264:
255:
223:
205:
157:
149:World War II
130:sleeve valve
118:Napier Sabre
117:
115:
53:sleeve valve
18:
928:Performance
903:Oil system:
886:carburettor
679:, RB396, UK
640:, prototype
634:, prototype
628:, prototype
620:Hawker Fury
563:Sabre E.122
553:Sabre E.118
544:Hawker Fury
212:Supermarine
184:jet engines
180:Hawker Fury
137:aero engine
59:aero engine
1861:Categories
1087:motor oils
1050:References
911:oil filter
891:Fuel type:
851:Valvetrain
844:Components
835:Dry weight
692:Solent Sky
616:, test-bed
610:, test-bed
539:Sabre VIII
324:Production
87:First run
1887:H engines
1431:Aeroplane
1055:Footnotes
765:Data from
529:Sabre VII
487:Sabre III
471:Sabre IIC
457:Sabre IIB
451:Sabre IIA
274:In 1927,
265:Twin Wasp
188:turboprop
1846:Scorpion
1742:Culverin
1298:Archived
986:See also
907:Oil pump
893:100/130
755:, Ottawa
670:Montréal
515:Sabre VI
509:Sabre VA
497:Sabre IV
435:Sabre II
421:Variants
307:and the
1793:Gazelle
1752:Javelin
1679:A 1946
1285:, p.133
1250:, p.140
1211:, p.187
1177:, p.186
1143:, p.103
1126:, p.145
867:Torsion
828:Height:
816:Length:
768:Lumsden
728:Duxford
579:Adopted
503:Sabre V
240:Genesis
226:H-block
147:during
1839:Rocket
1762:Rapier
1747:Dagger
1720:Napier
1682:Flight
1635:
1617:
1596:
1582:
1568:
1527:
1485:
1470:
1456:
1423:
1281:
1246:
1231:Flight
1207:
1194:, p.81
1190:
1173:
1160:, p.73
1156:
1139:
1122:
898:petrol
895:octane
822:Width:
799:Stroke
783:H-type
425:Note:
234:Dagger
230:Rapier
174:, the
153:inline
134:piston
56:piston
24:Sabre
1814:Nomad
1798:Naiad
1788:Eland
1767:Sabre
1106:Notes
870:shaft
779:Type:
520:Rotol
356:Eagle
258:litre
196:Eland
192:Naiad
43:Type
1830:Oryx
1757:Lion
1633:ISBN
1615:ISBN
1594:ISBN
1580:ISBN
1566:ISBN
1525:ISBN
1483:ISBN
1468:ISBN
1454:ISBN
1421:ISBN
1279:ISBN
1244:ISBN
1205:ISBN
1188:ISBN
1171:ISBN
1154:ISBN
1137:ISBN
1120:ISBN
790:Bore
332:The
208:Lion
194:and
162:and
116:The
50:H-24
1737:Cub
960:7:1
1863::
1627::
1551:"
1538:"
1519::
1507:"
1495:"
1439:"
1327:^
1229:"
1216:^
726:,
668:,
664:,
660:,
358:.
198:.
132:,
128:,
124:,
1712:e
1705:t
1698:v
1531:.
1489:.
1474:.
979::
958::
949::
864::
853::
837::
810::
801::
792::
734:)
698:)
672:.
550:.
526:.
468:.
448:.
401:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
