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22:
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Development issues delayed production of the engine, with the first geared drive engine delivered to
Nieuport-Delage in October 1929, a month after the 1929 Schneider Trophy race. Despite the effort put into its development the 18R proved to be unreliable and unable to achieve the expected power
307:
magnesium alloy for body components with high strength steels for highly loaded parts such as the crankshaft. In common with many multiple bank and radial engines the pistons were connected to the crankshaft via
324:
output. The poor performance of the 18R prompted the development of the 18S, a de-rated version intended for commercial use. Reducing the compression ratio to 6.2:1 at a maximum rpm of 2,000 and replacing the
312:; the central vertical bank was served by the master rod which housed the big-end bearing with connecting rods articulating from this to the other two banks. The 18R was available with or without a
340:
The 18R and 18S did not have successful careers, only powering four aircraft types in very small production numbers, proving to be totally outclassed by contemporary racing engines, such as the
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to a common crankshaft / crankcase, set at 80° to each other. Retaining the 150 mm (5.91 in) bore and 170 mm (6.69 in) stroke of the 12Nb, the 18R had the
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increased from 6.25:1 to 10:1 with a total displacement of 54.075L (3,299.8ci). Each cylinder aspirated through two valves operated by single overhead
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decided to enter the 1929 competition. Two companies were tasked with designing and building floatplane racers to compete with the entries from
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with aluminium alloy, the 18S was available with or without the Farman reduction gear, but was not a success, only powering the
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The original racing engine with 10:1 compression ratio, available with or without the Farman reduction gearing.
47:
524:
516 kg (1,138 lb) 18Sb without reduction gear, 590 kg (1,300 lb) 18Sbr with reduction gear
58:
512:
540 kg (1,190 lb) 18R without reduction gear, 600 kg (1,300 lb) 18R with reduction gear
491:
1,640 mm (64.57 in) without reduction gear, 1,990 mm (78.35 in) with reduction gear
309:
128:
Hispano-Suiza 18Sbr W-18 engine on display in the Musée de l’Air et de l’Espace in Le
Bourget, France.
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The de-rated. 6.2:1 compression ratio, commercial version without the Farman reduction gearing.
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8:
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1,253 kW (1,680 hp) at 2,400 rpm (18S – 745 kW (999 hp) at 2,000 rpm)
480:
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optional Farman (bevel planetary) geared drive, which weighed 60 kg (130 lb).
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single shaft driven overhead camshaft with one exhaust and one inlet valve per cylinder
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273:, both of which were powered by the specially designed Hispano-Suiza 18R engines.
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To power the racers
Hispano-Suiza married three six cylinder blocks from the
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120:
39:
711:
Beyond the Model T: The Other
Ventures of Henry Ford by Ford Bryan (1997)
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408:
234:
194:
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430:
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238:
21:
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Schneider Trophy
Seaplanes and Flying Boats by Ralph Pegram (2012)
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at the rear of the engine. Fuel metering was carried out by nine
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with ignition from two spark plugs set on opposite sides of the
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258:
241:, built in France during the latter half of the 1920s.
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was an eighteen cylinder high performance water-cooled
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Jane's All the World's
Aircraft 1931–1933 by C.G. Grey
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425:One Hispano-Suiza 18Sbr engine is preserved at the
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702:Hispano Suiza in Aeronautics by Manuel Lage (2004)
641:
850:
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675:"Hispano-Suiza 18R and 18Sb Aircraft Engines"
552:nine carburretors feeding two cylinders each
253:seaplane race for several years, the French
48:introducing citations to additional sources
377:The 18Sb with the Farman reduction gearing.
737:
723:
449:
244:
411:(landplane conversion of the H.V.120-01)
38:Relevant discussion may be found on the
439:
400:(converted from the 2 NiD 450 aircraft)
303:Construction of the 18R was largely of
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672:
485:54.1 L (3,301.38 cu in)
335:
332:in the pylon mounted central nacelle.
718:
705:Aerosphere 1939 by Glenn Angle (1940)
420:
458:W-18 80° water-cooled in-line engine
15:
13:
693:
136:W-18 high performance Aeor-engine
14:
880:
673:Pearce, William (25 July 2013).
310:master and slave connecting rods
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31:relies largely or entirely on a
20:
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864:Hispano-Suiza aircraft engines
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300:each supplying two cylinders.
1:
859:1920s aircraft piston engines
634:
534:
503:1,170 mm (46.06 in)
497:1,330 mm (52.36 in)
427:Musée de l’Air et de l’Espace
348:family of floatplane racers.
7:
605:
351:
249:After failing to enter the
10:
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476:170 mm (6.69 in)
467:150 mm (5.91 in)
429:(Air & Space Museum),
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127:
118:
113:
629:List of aircraft engines
450:General characteristics
398:Nieuport-Delage NiD 650
393:Nieuport-Delage NiD 450
267:Nieuport-Delage NiD-450
185:Nieuport-Delage NiD 650
180:Nieuport-Delage NiD 450
245:Design and development
440:Specifications (18R)
44:improve this article
336:Operational history
265:, resulting in the
237:layout, for use in
59:"Hispano-Suiza 18R"
611:Comparable engines
601:10:1 (18S – 6.2:1)
421:Engines on display
344:which powered the
316:(bevel planetary)
290:combustion chamber
278:Hispano-Suiza 12Nb
255:Ministère de l’Air
172:Major applications
846:
845:
677:. oldmachinepress
597:Compression ratio
282:compression ratio
223:Hispano-Suiza 18R
219:
218:
214:Hispano-Suiza 12N
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749:aircraft engines
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251:Schneider Trophy
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694:Further reading
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568:Cooling system:
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404:Bernard H.V.120
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346:Supermarine S.6
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271:Bernard H.V.120
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239:racing aircraft
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190:Bernard H.V.120
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142:National origin
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757:Piston engines
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318:reduction gear
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209:Developed from
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42:. Please help
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746:Hispano-Suiza
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623:Related lists
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590:Power output:
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157:Hispano-Suiza
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153:Manufacturer
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61: –
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55:Find sources:
49:
45:
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35:
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33:single source
29:This article
27:
23:
18:
17:
819:
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681:14 September
679:. Retrieved
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570:water-cooled
567:
564:pressure fed
561:
555:
550:Fuel system:
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481:Displacement
479:
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382:Applications
356:
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292:supplied by
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229:, in an 80°
222:
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97:
87:
80:
73:
66:
54:
30:
617:Napier Lion
584:Performance
562:Oil system:
409:Bernard V-4
298:carburetors
235:broad arrow
195:Bernard V-4
853:Categories
635:References
556:Fuel type:
542:Valvetrain
535:Components
508:Dry weight
435:Data from:
431:Le Bourget
387:Data from:
357:Data from:
163:First run
70:newspapers
869:W engines
830:Turbojets
445:Data from
433:, France.
286:camshafts
40:talk page
606:See also
558:gasoline
415:Ford 14A
352:Variants
330:Ford 14A
326:Elektron
305:Elektron
294:magnetos
200:Ford 14A
100:May 2015
501:Height:
489:Length:
84:scholar
838:Verdon
495:Width:
472:Stroke
314:Farman
147:France
86:
79:
72:
65:
57:
456:Type:
374:18Sbr
259:Italy
166:1929
133:Type
91:JSTOR
77:books
810:14AB
805:14AA
683:2013
463:Bore
368:18Sb
269:and
261:and
221:The
114:18R
63:news
820:18S
815:18R
800:12Z
795:12Y
790:12X
785:12N
780:12M
362:18R
233:or
46:by
855::
775:9V
643:^
320:.
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765:6
738:e
731:t
724:v
685:.
599::
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231:W
102:)
98:(
88:·
81:·
74:·
67:·
50:.
36:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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