212:
42:
437:
162:
The cylinders, pistons, con-rods and gearing were taken from the
Renault, with the valve gear based on the Airdisco, and a new five-bearing crankshaft and cast crankcase were designed. It became the first Cirrus engine, and the first air-cooled four-cylinder inline aero engine to go into quantity
174:
and it proved a winning combination. The engine was soon adopted for other aircraft. Later versions named the Cirrus II, and Cirrus III were produced, each with slightly greater displacement and power (Cirrus II - 85 hp, Cirrus III - 90 hp).
158:
V8 aero engines. De
Havilland realised that half of this engine would make an air-cooled four-cylinder inline engine of just the right size at low cost. He persuaded Halford to undertake its design and development.
326:
917:
385:
380:
166:
The original Cirrus engines were all designed by
Halford and built by ADC. The 65 horsepower (48 kW) Cirrus I passed its 50-hour
846:
1089:
798:
17:
722:
814:
783:
765:
737:
910:
126:
The engines were air-cooled, four-cylinder inline types. They were widely used for private and light aircraft.
1094:
839:
410:
360:
321:
306:
282:
247:
except where noted. The list includes trial installations where a different engine was principally adopted.
203:
The Cirrus III was also adapted and improved by
American Cirrus Engines, who manufactured it under license.
1068:
903:
138:'s 1924 search for a powerplant suitable for the light two-seat sports biplane which would become the
143:
120:
78:
832:
616:
171:
1063:
441:
424:
355:
301:
272:
99:
50:
1047:
1034:
142:. No engine existed at the time with a suitable level of power combined with a low weight. The
135:
8:
1021:
1011:
1006:
1001:
996:
987:
967:
938:
926:
487:
193:
187:
1025:
594:
345:
810:
794:
779:
761:
733:
574:
365:
197:
139:
744:
395:
370:
167:
858:
478:
375:
542:
178:
ADC ceased manufacture when it ran out of surplus
Renault engines around 1928.
824:
1083:
721:
The
Aviation Ancestry Database of British Aviation Advertisements 1909–1990.
469:
400:
151:
934:
869:
855:
604:
390:
316:
277:
147:
599:
405:
350:
311:
192:
When ADC ran out of parts, manufacture of the Cirrus III was taken up by
884:
874:
530:
514:
340:
296:
262:
103:
895:
267:
211:
155:
116:
115:
is a series of
British aero engines manufactured using surplus
146:, also known as Airdisco and ADC, were producing the low-cost
41:
436:
791:
Boxkite to Jet: The
Remarkable Career of Frank B. Halford
667:
R. Cheyne Stout; "The
Development of the Cirrus Engine",
732:. Cambridge, England. Patrick Stephens Limited, 1989.
778:. Marlborough, Wiltshire: Airlife Publishing, 2003.
465:
Inline, air-cooled, upright 4-cylinder piston engine
170:in 1925. De Havilland launched his product as the
1081:
854:
804:
423:A preserved ADC Cirrus II is on display at the
911:
840:
431:
671:, Volume 14, Number 4, April 1929. pp.53-4.
60:Air-cooled 4-cylinder inline piston engine
918:
904:
847:
833:
760:. Vol. 2. London: Putnam Publishing.
456:
776:British Piston Engines and their Aircraft
181:
129:
535:1 inlet and 1 exhaust valve per cylinder
435:
210:
925:
805:Wesselink, Theo; Postma, Thijs (1982).
755:
742:
154:from their large stocks of war surplus
14:
1082:
652:
899:
828:
417:
793:. Rolls-Royce Heritage Trust. 1999.
27:1920s British piston aircraft engine
730:World Encyclopaedia of Aero Engines
24:
25:
1106:
134:The Cirrus engine originated in
40:
743:Frachet, André (12 June 1930).
714:
239:
150:V8 which had been developed by
758:British Civil Aircraft 1919-72
745:"Le monoplan Koolhoven F.K.42"
701:
692:
683:
674:
661:
643:
634:
561:
215:Cirrus III engine on the right
13:
1:
1090:1920s aircraft piston engines
622:
523:
361:de Havilland DH.71 Tiger Moth
333:
307:de Havilland DH.71 Tiger Moth
289:
7:
988:Cirrus-Hermes/Cirrus Hermes
583:
255:
206:
10:
1111:
807:De Nederlandse vliegtuigen
725:(retrieved 23 April 2020).
689:Lumsden 2003, pp. 130-132.
185:
1020:
986:
966:
933:
865:
432:Specifications (Cirrus I)
250:
144:Aircraft Disposal Company
121:Aircraft Disposal Company
79:Aircraft Disposal Company
48:
39:
34:
979:American Cirrus Hi-Drive
680:Aviation Ancestry (1929)
627:
617:List of aircraft engines
504:18.26 in (46.4 cm)
498:45.8 in (116.3 cm)
457:General characteristics
442:de Havilland DH.60 Moth
440:Cirrus III fitted to a
425:Science Museum (London)
356:de Havilland DH.60 Moth
302:de Havilland DH.60 Moth
273:de Havilland DH.60 Moth
100:de Havilland DH.60 Moth
756:Jackson, A.J. (1973).
510:34.3 in (87.1 cm)
444:
216:
182:Subsequent manufacture
130:Design and development
51:Science Museum, London
723:Cirrus advertisements
707:Lumsden 2003, p. 130.
640:Taylor 1999, pp.74-5.
483:5.12 in (130 mm)
474:4.13 in (105 mm)
439:
214:
136:Geoffrey de Havilland
49:ADC Cirrus II at the
1095:ADC aircraft engines
492:274.36 cu in (4.5 L)
123:(ADC) in the 1920s.
976:American Cirrus III
939:Cirrus Aero Engines
927:Cirrus aero engines
789:Taylor, Douglas R.
194:Cirrus Aero Engines
188:Cirrus aero engines
18:American Cirrus III
1026:Blackburn Aircraft
809:. Haarlem: Romem.
698:Jackson p.190 1973
595:de Havilland Gipsy
589:Comparable engines
570:60 hp (45 kW)
445:
418:Engines on display
346:Blackburn Bluebird
217:
95:Major applications
1077:
1076:
1069:Cirrus Bombardier
893:
892:
669:U.S. Air Services
649:Taylor 1999, p.76
575:Compression ratio
366:Dudley Watt D.W.2
245:List from Lumsden
140:de Havilland Moth
109:
108:
16:(Redirected from
1102:
920:
913:
906:
897:
896:
849:
842:
835:
826:
825:
820:
771:
752:
708:
705:
699:
696:
690:
687:
681:
678:
672:
665:
659:
656:
650:
647:
641:
638:
411:Westland Widgeon
396:Simmonds Spartan
371:Emsco B-4 Cirrus
327:Bloudek XV Lojze
322:Westland Widgeon
283:Westland Widgeon
196:, also based at
96:
67:
44:
32:
31:
21:
1110:
1109:
1105:
1104:
1103:
1101:
1100:
1099:
1080:
1079:
1078:
1073:
1016:
982:
968:American Cirrus
962:
929:
924:
894:
889:
861:
853:
823:
817:
774:Lumsden, Alec.
768:
728:Gunston, Bill.
717:
712:
711:
706:
702:
697:
693:
688:
684:
679:
675:
666:
662:
657:
653:
648:
644:
639:
635:
630:
625:
586:
564:
555:Cooling system:
526:
459:
434:
420:
415:
406:Westland Wessex
376:Koolhoven FK.41
336:
331:
292:
287:
258:
253:
242:
209:
190:
184:
132:
102:
94:
70:United Kingdom
66:National origin
65:
28:
23:
22:
15:
12:
11:
5:
1108:
1098:
1097:
1092:
1075:
1074:
1072:
1071:
1066:
1061:
1060:
1059:
1056:
1053:
1045:
1044:
1043:
1040:
1031:
1029:
1018:
1017:
1015:
1014:
1009:
1004:
999:
993:
991:
984:
983:
981:
980:
977:
973:
971:
964:
963:
961:
960:
955:
950:
944:
942:
931:
930:
923:
922:
915:
908:
900:
891:
890:
888:
887:
882:
877:
872:
866:
863:
862:
856:ADC (Airdisco)
852:
851:
844:
837:
829:
822:
821:
815:
802:
787:
772:
766:
753:
740:
726:
718:
716:
713:
710:
709:
700:
691:
682:
673:
660:
651:
642:
632:
631:
629:
626:
624:
621:
620:
619:
608:
607:
602:
597:
585:
582:
581:
580:
571:
563:
560:
559:
558:
552:
546:
536:
525:
522:
521:
520:
511:
505:
499:
493:
484:
475:
466:
458:
455:
433:
430:
429:
428:
419:
416:
414:
413:
408:
403:
398:
393:
388:
383:
378:
373:
368:
363:
358:
353:
348:
343:
337:
335:
332:
330:
329:
324:
319:
314:
309:
304:
299:
293:
291:
288:
286:
285:
280:
275:
270:
265:
259:
257:
254:
252:
249:
241:
238:
237:
236:
233:
230:
227:
224:
221:
208:
205:
186:Main article:
183:
180:
131:
128:
107:
106:
97:
91:
90:
87:
83:
82:
76:
72:
71:
68:
62:
61:
58:
54:
53:
46:
45:
37:
36:
26:
9:
6:
4:
3:
2:
1107:
1096:
1093:
1091:
1088:
1087:
1085:
1070:
1067:
1065:
1064:Cirrus Midget
1062:
1057:
1054:
1051:
1050:
1049:
1046:
1041:
1038:
1037:
1036:
1033:
1032:
1030:
1027:
1023:
1022:Cirrus Hermes
1019:
1013:
1010:
1008:
1005:
1003:
1000:
998:
995:
994:
992:
989:
985:
978:
975:
974:
972:
969:
965:
959:
956:
954:
951:
949:
946:
945:
943:
940:
936:
932:
928:
921:
916:
914:
909:
907:
902:
901:
898:
886:
883:
881:
878:
876:
873:
871:
868:
867:
864:
860:
857:
850:
845:
843:
838:
836:
831:
830:
827:
818:
816:90-228-3792-0
812:
808:
803:
800:
799:1 872922 16 3
796:
792:
788:
785:
784:1-85310-294-6
781:
777:
773:
769:
767:0-85177-813-5
763:
759:
754:
750:
746:
741:
739:
738:1-85260-163-9
735:
731:
727:
724:
720:
719:
704:
695:
686:
677:
670:
664:
655:
646:
637:
633:
618:
615:
614:
613:
612:
611:Related lists
606:
603:
601:
598:
596:
593:
592:
591:
590:
578:
576:
572:
569:
568:Power output:
566:
565:
556:
553:
550:
547:
544:
540:
537:
534:
532:
528:
527:
518:
516:
512:
509:
506:
503:
500:
497:
494:
491:
489:
485:
482:
480:
476:
473:
471:
467:
464:
461:
460:
454:
452:
449:
443:
438:
426:
422:
421:
412:
409:
407:
404:
402:
401:Spartan Arrow
399:
397:
394:
392:
389:
387:
384:
382:
379:
377:
374:
372:
369:
367:
364:
362:
359:
357:
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352:
349:
347:
344:
342:
339:
338:
328:
325:
323:
320:
318:
315:
313:
310:
308:
305:
303:
300:
298:
295:
294:
284:
281:
279:
276:
274:
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261:
260:
248:
246:
234:
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228:
225:
222:
219:
218:
213:
204:
201:
199:
195:
189:
179:
176:
173:
169:
164:
160:
157:
153:
152:Frank Halford
149:
145:
141:
137:
127:
124:
122:
119:parts by the
118:
114:
105:
101:
98:
93:
92:
88:
85:
84:
80:
77:
75:Manufacturer
74:
73:
69:
64:
63:
59:
56:
55:
52:
47:
43:
38:
33:
30:
19:
1048:Cirrus Major
1035:Cirrus Minor
957:
952:
947:
879:
859:aero engines
806:
790:
775:
757:
748:
729:
715:Bibliography
703:
694:
685:
676:
668:
663:
658:Gunston 1989
654:
645:
636:
610:
609:
605:Walter Minor
588:
587:
573:
567:
554:
548:
539:Fuel system:
538:
529:
513:
507:
501:
495:
488:Displacement
486:
477:
468:
462:
450:
447:
446:
391:Short Mussel
317:Short Mussel
278:Short Mussel
244:
243:
240:Applications
202:
191:
177:
165:
163:production.
161:
133:
125:
112:
110:
29:
1028:(1936-1960)
990:(1931-1934)
970:(1931-1934)
941:(1925-1929)
600:Hirth HM 60
562:Performance
545:carburettor
351:Cierva C.17
312:Piaggio P.9
172:Cirrus Moth
168:type rating
1084:Categories
1007:Hermes III
958:Cirrus III
623:References
549:Fuel type:
531:Valvetrain
524:Components
515:Dry weight
386:Klemm L.27
381:Klemm L.26
341:Avro Avian
334:Cirrus III
297:Avro Avian
263:Avro Avian
232:Cirrus III
113:ADC Cirrus
104:Avro Avian
86:First run
1012:Hermes IV
1002:Hermes II
953:Cirrus II
751:(469): 3.
749:Les Ailes
551:70 octane
448:Data from
290:Cirrus II
268:Avro Baby
226:Cirrus II
997:Hermes I
948:Cirrus I
870:Airdisco
584:See also
519:lb ( kg)
256:Cirrus I
220:Cirrus I
207:Variants
148:Airdisco
543:Claudel
508:Height:
496:Length:
451:Lumsden
198:Croydon
156:Renault
117:Renault
35:Cirrus
885:Nimbus
880:Cirrus
875:Airsix
813:
797:
782:
764:
736:
502:Width:
479:Stroke
251:Cirrus
235:(1929)
229:(1926)
223:(1925)
81:(ADC)
628:Notes
579:4.7:1
463:Type:
89:1925
57:Type
811:ISBN
795:ISBN
780:ISBN
762:ISBN
734:ISBN
470:Bore
111:The
1058:III
935:ADC
557:air
1086::
1055:II
1042:II
747:.
541:1
200:.
1052:I
1039:I
1024:/
937:/
919:e
912:t
905:v
848:e
841:t
834:v
819:.
801:.
786:.
770:.
577::
533::
517::
490::
481::
472::
453:.
427:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
