152:
37:
718:
167:- compressor/supercharger, followed by a number indicating the rated altitude in hundreds of metres, two speed superchargers were indicated by a double figure such as 10/34).
1074:
777:
935:
135:. All these essentially similar engines were mainly fitted to Italian bombers in World War II, Alfa Romeo building around 11,000 units between 1934 and 1944
822:
729:
1069:
143:
Alfa Romeo adapted the
Jupiter / Pegasus (which are very closely related) to metric measurements, local materials and indigenous equipment.
1079:
928:
382:
843:
394:
151:
388:
376:
364:
276:
1943 — Two speed supercharger, rated at 1,400 m (4,600 ft) in low gear and 5,000 m (16,000 ft) in high gear.
921:
631:
400:
159:(The Italian engine designation system includes a suffix indicating major components or attributes. The most common were R for
788:
558:
185:
36:
693:
310:
812:
212:
1935 — Civilian version of 126 R.C.34 559–597 kW (750–801 hp) rated at 1,000 m (3,300 ft)
418:
412:
406:
370:
85:
681:
646:
358:
352:
955:
753:
1033:
467:
1048:
1043:
1038:
304:
298:
292:
851:
622:
1028:
1023:
1018:
947:
676:
671:
458:
178:
108:
104:
65:
55:
1013:
1008:
1003:
998:
993:
983:
978:
973:
968:
346:
1063:
963:
613:
515:
2 x inlet valves and 2 x exhaust valves per cylinder operated by pushrods and rockers
449:
340:
334:
316:
519:
184:
The standard 313 kW (420 hp) Jupiter engine built under licence from the
594:
708 kW (950 hp) at 2,300 rpm with 1,000 mm (39.37 in) Hg boost
575:
2 x
Marelli MF9 magnetos, 2 x spark plugs per cylinder, fed by a shielded harness.
286:
228:
1935 — 507–582 kW (680–780 hp) rated at 3,400 m (11,200 ft)
944:
510:
488:
17:
817:
536:
328:
913:
530:
1 x Mona-Hobson AVT85MC updraught carburettor with automatic boost control
433:
Aircraft
Engines of the World 1945 Archivio Storico Alfa Romeo - Volume II
545:
666:
322:
252:
641–717 kW (860–962 hp) rated at 1,800 m (5,900 ft)
244:
1937 — 560 kW (750 hp) rated at 5,500 m (18,000 ft)
204:
1934 — 485 kW (650 hp) rated at 3,500 m (11,500 ft)
606:
492 kW (660 hp) at 1,800 rpm at 2,500 m (8,200 ft)
600:
641 kW (860 hp) at 2,300 rpm at 2,100 m (6,900 ft)
260:
1938 — 708 kW (949 hp) rated at 2,100 m (6,900 ft)
52:
103:
Alfa Romeo built/designed a range of aircraft engines based on the
150:
917:
44:
A 610 kW (820 hp) Alfa Romeo 128 R.C.18 from ca1939.
909:
Archivio
Storico Alfa Romeo - Volume II. Torino, November 1998
905:(2nd ed.). New York: Paul H. Wilkinson. pp. 288–289.
886:
Archivio
Storico Alfa Romeo - Volume II. Torino, November 1998
876:(2nd ed.). New York: Paul H. Wilkinson. pp. 288–289.
778:"AlfaAEREI Collezione Modelli di Marco Rigoni Settembre 2005"
403:(Alfa 128 R.C.18 / Alfa 128 R.C.21 / Alfa 129 R.C.32)
301:(Alfa 126 R.C.34 / Alfa 127 R.C.50 / Alfa 127 R.C.55)
719:"STORY OF THE ALFA ROMEO FACTORY AND PLANTS page 12"
379:(Alfa 128 R.C.18 / Alfa 125 R.C.35 / Alfa126 R.C.34)
954:
524:Gear-driven 1-speed, 8.8:1 ratio, supercharger
929:
563:Epicyclic bevel reduction gear, 0.65:1 ratio.
8:
936:
922:
914:
1075:Aircraft air-cooled radial piston engines
844:"The Savoia-Marchetti S.M. 79 Sparviero"
636:0.31 kg/kW/hr (0.51 lb/hp/hr) (take-off)
710:
472:28.6 L (1,745.28 cu in)
421:(Alfa 128 R.C.18 / Alfa 131 R.C.14/50)
268:rated at 3,200 m (10,500 ft)
236:rated at 5,000 m (16,000 ft)
220:rated at 3,200 m (10,500 ft)
26:
196:rated at 1,000 m (3,300 ft)
7:
825:from the original on 31 October 2007
383:Savoia-Marchetti S.M.79-II Sparviero
155:Alfa Romeo 131, 9-cyl radial engine.
445:9-cylinder air-cooled radial engine
397:(Alfa 125 R.C.35 / Alfa 126 R.C.34)
395:Savoia-Marchetti S.M.81 Pipistrello
367:(Alfa 128 R.C.18 / Alfa 128 R.C.21)
355:(Alfa 126 R.C.10 / Alfa 126 R.C.34)
903:Aircraft engines of the World 1945
874:Aircraft engines of the World 1945
499:1.54 m (16.6 sq ft)
389:Savoia-Marchetti S.M.79B Sparviero
25:
377:Savoia-Marchetti S.M.79 Sparviero
365:Savoia-Marchetti SM.75 Marsupiale
642:0.0078 kg/kW/hr (0.013 lb/hp/hr)
426:Specifications (Alfa 128 R.C.21)
35:
30:125, 126, 127, 128, 129 and 131
401:Savoia-Marchetti S.M.82 Canguru
569:Garelli compressed air starter
544:551.6 kPa (80 psi),
1:
1070:1930s aircraft piston engines
325:(prototype) (Alfa126 R.C.34)
484:1,400 mm (55.1 in)
478:1,329 mm (52.3 in)
1080:Alfa Romeo aircraft engines
901:Wilkinson, Paul H. (1945).
872:Wilkinson, Paul H. (1945).
493:516 kg (1,138 lb)
163:- reduction gear and C for
1096:
848:xs4all.nl/~fbonne/warbirds
618:24.57 kW/L (0.54 hp/cu in)
463:190 mm (7.48 in)
454:146 mm (5.75 in)
176:
651:0.782 kW/kg (0.775 hp/lb)
632:Specific fuel consumption
186:Bristol Aeroplane Company
43:
34:
29:
694:List of aircraft engines
311:Caproni Bergamaschi AP.1
813:"Macchi M.C.100 - 1939"
437:General characteristics
419:Savoia-Marchetti S.M.95
413:Savoia-Marchetti S.M.84
407:Savoia-Marchetti S.M.83
156:
139:Design and development
86:Savoia-Marchetti SM.79
682:Wright R-1820 Cyclone
647:Power-to-weight ratio
371:Savoia-Marchetti S.77
359:Savoia-Marchetti S.74
353:Savoia-Marchetti S.73
154:
111:designs, designated
785:aerei-italiani.net
661:Comparable engines
305:CANT Z.506C Airone
299:CANT Z.506B Airone
293:CANT Z.506A Airone
273:Alfa 131 R.C.14/50
171:Alfa Romeo Jupiter
157:
81:Major applications
1057:
1056:
623:Compression ratio
415:(Alfa 128 R.C.21)
391:(Alfa 128 R.C.18)
385:(Alfa 126 R.C.34)
373:(Alfa 126 R.C.10)
349:(Alfa 126 R.C.10)
343:(Alfa 126 R.C.10)
331:(Alfa 128 R.C.18)
307:(Alfa 126 R.C.10)
295:(Alfa 126 R.C.10)
101:
100:
16:(Redirected from
1087:
938:
931:
924:
915:
906:
887:
884:
878:
877:
869:
863:
862:
860:
859:
850:. Archived from
840:
834:
833:
831:
830:
809:
803:
802:
800:
799:
793:
787:. Archived from
782:
774:
768:
767:
765:
764:
750:
744:
743:
741:
740:
734:
728:. Archived from
726:enzociliberto.it
723:
715:
640:Oil consumption:
409:(Alfa126 R.C.34)
361:(Alfa126 R.C.34)
337:(Alfa126 R.C.34)
313:(Alfa126 R.C.34)
289:(Alfa125 R.C.35)
94:
82:
39:
27:
21:
1095:
1094:
1090:
1089:
1088:
1086:
1085:
1084:
1060:
1059:
1058:
1053:
950:
942:
912:
900:
891:
890:
885:
881:
871:
870:
866:
857:
855:
854:on 17 July 2007
842:
841:
837:
828:
826:
811:
810:
806:
797:
795:
791:
780:
776:
775:
771:
762:
760:
758:alatricolore.it
754:"CAPRONI CA.97"
752:
751:
747:
738:
736:
732:
721:
717:
716:
712:
702:
677:Nakajima Hikari
672:Bristol Pegasus
658:
609:
582:
552:Cooling system:
506:
439:
428:
283:
265:Alfa 129 R.C.32
257:Alfa 128 R.C.21
249:Alfa 128 R.C.18
241:Alfa 127 R.C.55
233:Alfa 127 R.C.50
225:Alfa 126 R.C.34
217:Alfa 126 R.C.32
209:Alfa 126 R.C.10
201:Alfa 125 R.C.35
193:Alfa 125 R.C.10
181:
179:Bristol Jupiter
149:
141:
109:Bristol Pegasus
105:Bristol Jupiter
92:
80:
56:aircraft engine
23:
22:
15:
12:
11:
5:
1093:
1091:
1083:
1082:
1077:
1072:
1062:
1061:
1055:
1054:
1052:
1051:
1046:
1041:
1036:
1031:
1026:
1021:
1016:
1011:
1006:
1001:
996:
991:
986:
981:
976:
971:
966:
960:
958:
956:Piston engines
952:
951:
943:
941:
940:
933:
926:
918:
911:
910:
907:
897:
889:
888:
879:
864:
835:
804:
794:on 5 June 2007
769:
745:
709:
708:
701:
698:
697:
696:
685:
684:
679:
674:
669:
657:
654:
653:
652:
643:
637:
628:
619:
614:Specific power
610:
608:
607:
601:
595:
588:
581:
578:
577:
576:
570:
564:
559:Reduction gear
555:
549:
539:
531:
525:
516:
505:
502:
501:
500:
494:
485:
479:
473:
464:
455:
446:
438:
435:
427:
424:
423:
422:
416:
410:
404:
398:
392:
386:
380:
374:
368:
362:
356:
350:
347:Macchi M.C.100
344:
338:
332:
326:
320:
314:
308:
302:
296:
290:
282:
279:
278:
277:
274:
270:
269:
266:
262:
261:
258:
254:
253:
250:
246:
245:
242:
238:
237:
234:
230:
229:
226:
222:
221:
218:
214:
213:
210:
206:
205:
202:
198:
197:
194:
190:
189:
177:Main article:
175:
174:
172:
148:
145:
140:
137:
99:
98:
95:
89:
88:
83:
77:
76:
73:
69:
68:
63:
59:
58:
50:
46:
45:
41:
40:
32:
31:
24:
18:Alfa Romeo 128
14:
13:
10:
9:
6:
4:
3:
2:
1092:
1081:
1078:
1076:
1073:
1071:
1068:
1067:
1065:
1050:
1047:
1045:
1042:
1040:
1037:
1035:
1032:
1030:
1027:
1025:
1022:
1020:
1017:
1015:
1012:
1010:
1007:
1005:
1002:
1000:
997:
995:
992:
990:
987:
985:
982:
980:
977:
975:
972:
970:
967:
965:
962:
961:
959:
957:
953:
949:
946:
939:
934:
932:
927:
925:
920:
919:
916:
908:
904:
899:
898:
896:
895:
883:
880:
875:
868:
865:
853:
849:
845:
839:
836:
824:
820:
819:
814:
808:
805:
790:
786:
779:
773:
770:
759:
755:
749:
746:
735:on 2007-09-29
731:
727:
720:
714:
711:
707:
706:
699:
695:
692:
691:
690:
689:
688:Related lists
683:
680:
678:
675:
673:
670:
668:
665:
664:
663:
662:
655:
650:
648:
644:
641:
638:
635:
633:
629:
626:
624:
620:
617:
615:
611:
605:
602:
599:
596:
593:
590:
589:
587:
586:Power output:
584:
583:
579:
574:
571:
568:
565:
562:
560:
556:
553:
550:
547:
543:
540:
538:
535:
532:
529:
526:
523:
521:
517:
514:
512:
508:
507:
503:
498:
497:Frontal Area:
495:
492:
490:
486:
483:
480:
477:
474:
471:
469:
465:
462:
460:
456:
453:
451:
447:
444:
441:
440:
436:
434:
432:
425:
420:
417:
414:
411:
408:
405:
402:
399:
396:
393:
390:
387:
384:
381:
378:
375:
372:
369:
366:
363:
360:
357:
354:
351:
348:
345:
342:
341:Macchi M.C.94
339:
336:
335:Junkers Ju 52
333:
330:
327:
324:
321:
319:(AlfaJupiter)
318:
317:Caproni Ca.97
315:
312:
309:
306:
303:
300:
297:
294:
291:
288:
285:
284:
280:
275:
272:
271:
267:
264:
263:
259:
256:
255:
251:
248:
247:
243:
240:
239:
235:
232:
231:
227:
224:
223:
219:
216:
215:
211:
208:
207:
203:
200:
199:
195:
192:
191:
187:
183:
182:
180:
173:
170:
169:
168:
166:
162:
153:
146:
144:
138:
136:
134:
130:
126:
122:
118:
114:
110:
106:
96:
91:
90:
87:
84:
79:
78:
74:
71:
70:
67:
64:
62:Manufacturer
61:
60:
57:
54:
51:
48:
47:
42:
38:
33:
28:
19:
1049:Colombo S.63
1044:Colombo S.53
988:
948:aero engines
902:
894:Bibliography
893:
892:
882:
873:
867:
856:. Retrieved
852:the original
847:
838:
827:. Retrieved
816:
807:
796:. Retrieved
789:the original
784:
772:
761:. Retrieved
757:
748:
737:. Retrieved
730:the original
725:
713:
704:
703:
687:
686:
660:
659:
645:
639:
630:
621:
612:
603:
597:
591:
585:
572:
566:
557:
551:
541:
533:
528:Fuel system:
527:
520:Supercharger
518:
509:
496:
487:
481:
475:
468:Displacement
466:
457:
448:
442:
430:
429:
281:Applications
164:
160:
158:
142:
132:
128:
124:
120:
116:
112:
102:
93:Number built
580:Performance
542:Oil system:
287:Breda Ba.64
165:Compressore
1064:Categories
945:Alfa Romeo
858:2007-08-27
829:2007-09-20
798:2007-04-25
763:2007-09-20
739:2007-08-25
700:References
554:Air-cooled
534:Fuel type:
511:Valvetrain
504:Components
489:Dry weight
72:First run
66:Alfa Romeo
1029:Mercurius
818:Angelfire
604:Cruising:
598:Military:
592:Take-off:
573:Ignition:
537:87 octane
482:Diameter:
431:Data from
329:Fiat G.12
161:Riduttore
823:Archived
656:See also
567:Starter:
546:dry sump
147:Variants
133:Alfa 131
129:Alfa 129
125:Alfa 128
121:Alfa 127
117:Alfa 126
113:Alfa 125
97:~11,000
1039:RA 1050
1034:RA 1000
1019:Jupiter
667:BMW 132
476:Length:
323:DAR-10A
459:Stroke
75:1930s
53:Piston
792:(PDF)
781:(PDF)
733:(PDF)
722:(PDF)
705:Notes
443:Type:
131:and
49:Type
1024:Lynx
450:Bore
107:and
1014:136
1009:135
1004:129
999:128
994:126
989:125
984:122
979:121
974:115
969:110
627:7:1
1066::
964:D2
846:.
821:.
815:.
783:.
756:.
724:.
127:,
123:,
119:,
115:,
937:e
930:t
923:v
861:.
832:.
801:.
766:.
742:.
649::
634::
625::
616::
561::
548:.
522::
513::
491::
470::
461::
452::
188:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
