40:
300:
127:(SAB) who continued to work on its predecessor's designs, distinguished by their DB numbering as well as on their own, which had AB numbers. The DB-80 originated with Dyle and Bacalan but was not flown until 1930, built by SAB. It was Dyle and Bacalan's last design and a small aircraft by their standards but maintained their all-metal tradition.
248:
In late March 1930 the DB-80's test flights were awaiting better weather; a month later tests were underway but the first flight did not take place until 27 June 1930. The
Lorraine powered DB-81 flew in August, after which testing of the pair continued successfully though interrupted by SAB test
204:
leg, with its upper side hinged from the fuselage longerons. The strengthened forward edge of the structure extended above the hinge and connected to an elastic block housed in a reinforced transverse beam which passed under the cockpit, incorporating
134:
aircraft giving easy access by two port-side doors to a well-lit cabin with two passenger seats and to a separate mail compartment behind them. The pilot sat ahead of the passengers under the wing
200:
with track of 1.90 m (75 in). The mainwheels were independently mounted and fitted with brakes. Each axle was mounted at the lower vertex of a triangular box acting as a
702:
876:
866:
881:
781:
695:
250:
891:
39:
792:
124:
115:
light transports aimed at the air mail market whilst carrying two passengers. Identical apart from their engines, they flew in mid-1930.
76:
299:
228:, rather than the traditional one or two, and the detail of their caps or flanges, rather than the shape of the longitudinal braces or
896:
688:
871:
886:
173:. Its underside was smoothly bellied, its upper side flat. In plan its taper was delayed until aft of the cabin. Its
774:
358:
159:
216:
of 9. In plan it was straight tapered on both edges but with semi-elliptical tips curved particularly on the
845:
186:
759:
253:
for official trials of the DB-20. In
October the DB-80 was re-engined with a Lorraine and renamed DB-81.
767:
738:
733:
728:
723:
474:
237:
269:
139:
193:
at mid-fuselage height. Like the fuselage, all the tail surfaces were covered with ribbed duralumin.
158:. The latter was mounted on a hinged frame for easy servicing. The Hispano engined had a Lamblin
607:
225:
229:
169:
was built around four longerons, with rectangular frames and covered in longitudinally ribbed
256:
There is no record of any further examples being built nor of measured performance figures.
711:
273:
182:
143:
138:. Two differently engined versions were built: the DB-80 had a 100 hp (75 kW)
206:
491:
860:
667:
646:
628:
588:
570:
552:
392:
287:
217:
155:
530:
512:
213:
197:
135:
810:
805:
388:
283:
212:
The DB-80's high, cantilever wing was unusual both in its construction and high
151:
276:. Re-engined with Lorraine in October 1930, becoming second DB-81. One built.
201:
51:
830:
825:
820:
815:
190:
174:
170:
131:
680:
185:, the latter cut away at its base to allow for movement of the one-piece
166:
17:
303:
Dyle et
Bacalan DB-80 3-view drawing from NACA Aircraft Circular No.123
233:
221:
236:
profile. A similar but not identical wing structure was used on the
112:
66:
310:
NACA Aircraft
Circular no.123 (1930) Performance figures calculated
130:
The DB-80 was aimed at the airmail market and was a single-engine,
298:
475:"NACA Aircraft Circulars no.123: The Dyle and Bacalan "D.B. 80""
763:
684:
178:
395:, 89 kW (120 hp) maximum continuous, at 1,350 rpm
224:
were full span and broad. The wing was built around three
177:
was conventional, with a straight-tapered, blunt-topped
381:
180 L (40 imp gal; 48 US gal)
290:and 750 mm (29.5 in) shorter. One built.
647:"Aérodrome en aérodrome – à Bordeaux-Merignac"
629:"Aérodrome en aérodrome – à Bordeaux-Merignac"
589:"Aérodrome en aérodrome – à Bordeaux-Merignac"
571:"Aérodrome en aérodrome – à Bordeaux-Merignac"
553:"Aérodrome en aérodrome – à Bordeaux-Merignac"
775:
696:
8:
782:
768:
760:
703:
689:
681:
662:
660:
123:In 1929 Dyle and Bacalan were reformed as
507:
505:
416:200 km/h (120 mph, 110 kn)
422:170 km/h (110 mph, 92 kn)
455:
434:4,500 m (14,800 ft) practical
428:950 km (590 mi, 510 nmi)
531:"Le monoplan Dyle et Bacalan, D.B. 20"
469:
467:
465:
463:
461:
459:
29:
440:5 min to 1,000 m (3,300 ft)
7:
249:pilot Charles Deschamps' absence at
867:1930s French civil utility aircraft
606:Bruno Parmentier (30 August 1998).
272:upright six cylinder, water-cooled
142:six-cylinder, upright water-cooled
668:"Figure caption – Lorraine fitted"
25:
348:2.90 m (9 ft 6 in)
342:12 m (39 ft 4 in)
38:
882:Single-engined tractor aircraft
513:"L'avion postal léger D. B. 80"
492:"L'avion postal de jour D.B.80"
354:16 m (170 sq ft)
336:8 m (26 ft 3 in)
27:1930s French transport aircraft
111:were single-engine, all-metal
1:
375:1,100 kg (2,425 lb)
892:Aircraft first flown in 1930
635:(481): 12. 4 September 1930.
877:Société Aérienne Bordelaise
793:Société Aérienne Bordelaise
674:(488): 13. 23 October 1930.
369:678 kg (1,495 lb)
162:on the fuselage underside.
150:a 120 hp (89 kW)
125:Société Aérienne Bordelaise
77:Société Aérienne Bordelaise
913:
653:(486): 12. 9 October 1930.
446:80 km/h (50 mph)
801:
719:
577:(462): 13. 24 April 1930.
559:(458): 13. 27 March 1930.
282:120 hp (89 kW)
268:100 hp (75 kW)
50:Postal and two passenger
37:
32:
897:Dyle et Bacalan aircraft
519:(457): 3. 23 March 1930.
189:mounted on a triangular
872:1930s French mailplanes
595:(472): 13. 3 July 1930.
498:(132): 163–6. May 1930.
315:General characteristics
198:tailwheel undercarriage
196:The DB-80 had a fixed,
304:
295:Specifications (DB-81)
790:Aircraft produced by
302:
238:Dyle et Bacalan DB-20
541:: 3. 4 October 1928.
480:. NACA. August 1930.
887:High-wing aircraft
305:
52:transport aircraft
854:
853:
757:
756:
438:Time to altitude:
232:, determined the
183:unbalanced rudder
101:
100:
16:(Redirected from
904:
784:
777:
770:
761:
705:
698:
691:
682:
676:
675:
664:
655:
654:
643:
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619:
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561:
560:
549:
543:
542:
527:
521:
520:
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500:
499:
488:
482:
481:
479:
471:
432:Service ceiling:
409:
317:
270:Hispano-Suiza 6P
140:Hispano-Suiza 6P
94:
63:
55:Type of aircraft
42:
30:
21:
912:
911:
907:
906:
905:
903:
902:
901:
857:
856:
855:
850:
797:
788:
758:
753:
715:
712:Dyle et Bacalan
709:
679:
666:
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627:
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622:
612:
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529:
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511:
510:
503:
490:
489:
485:
477:
473:
472:
457:
453:
444:Take-off speed:
405:
313:
297:
262:
246:
207:shock absorbers
121:
92:
62:National origin
61:
56:
28:
23:
22:
15:
12:
11:
5:
910:
908:
900:
899:
894:
889:
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849:
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828:
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789:
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779:
772:
764:
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751:
746:
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736:
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726:
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693:
685:
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638:
620:
598:
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562:
544:
522:
501:
496:L'Aéronautique
483:
454:
452:
449:
448:
447:
441:
435:
429:
423:
417:
414:Maximum speed:
403:
402:
396:
382:
379:Fuel capacity:
376:
370:
364:
355:
349:
343:
337:
331:
330:Two passengers
325:
296:
293:
292:
291:
286:five cylinder
280:
277:
266:
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258:
245:
242:
218:trailing edges
154:five-cylinder
120:
117:
99:
98:
95:
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81:
80:
74:
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69:
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58:
57:
54:
48:
44:
43:
35:
34:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
909:
898:
895:
893:
890:
888:
885:
883:
880:
878:
875:
873:
870:
868:
865:
864:
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847:
844:
842:
839:
837:
834:
832:
829:
827:
824:
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819:
817:
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809:
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803:
800:
796:
794:
785:
780:
778:
773:
771:
766:
765:
762:
750:
747:
745:
742:
740:
737:
735:
732:
730:
727:
725:
722:
721:
718:
713:
706:
701:
699:
694:
692:
687:
686:
683:
673:
669:
663:
661:
657:
652:
648:
642:
639:
634:
630:
624:
621:
609:
608:"S.A.B DB-81"
602:
599:
594:
590:
584:
581:
576:
572:
566:
563:
558:
554:
548:
545:
540:
536:
532:
526:
523:
518:
514:
508:
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497:
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487:
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476:
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466:
464:
462:
460:
456:
450:
445:
442:
439:
436:
433:
430:
427:
424:
421:
420:Cruise speed:
418:
415:
412:
411:
410:
408:
400:
397:
394:
390:
386:
383:
380:
377:
374:
373:Gross weight:
371:
368:
367:Empty weight:
365:
362:
360:
356:
353:
350:
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344:
341:
338:
335:
332:
329:
326:
323:
320:
319:
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316:
311:
309:
301:
294:
289:
288:radial engine
285:
281:
278:
275:
274:inline engine
271:
267:
264:
263:
259:
257:
254:
252:
243:
241:
239:
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208:
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199:
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188:
184:
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176:
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163:
161:
157:
156:radial engine
153:
149:
145:
141:
137:
133:
128:
126:
118:
116:
114:
110:
106:
96:
91:
90:
87:27 June 1930
86:
84:First flight
83:
82:
78:
75:
73:Manufacturer
72:
71:
68:
65:
60:
59:
53:
49:
46:
45:
41:
36:
31:
19:
840:
835:
791:
748:
743:
671:
650:
641:
632:
623:
611:. Retrieved
601:
592:
583:
574:
565:
556:
547:
538:
534:
525:
516:
495:
486:
443:
437:
431:
425:
419:
413:
406:
404:
398:
389:Lorraine 5Pc
384:
378:
372:
366:
359:Aspect ratio
357:
351:
345:
339:
333:
327:
321:
314:
312:
307:
306:
284:Lorraine 5Pc
255:
251:Villacoublay
247:
220:, where its
214:aspect ratio
211:
195:
164:
152:Lorraine 5Pc
147:
136:leading edge
129:
122:
108:
104:
102:
93:Number built
811:SAB-SEMA 12
806:SAB-SEMA 10
407:Performance
399:Propellers:
391:5-cylinder
385:Powerplant:
244:Development
861:Categories
613:1 December
451:References
352:Wing area:
202:cantilever
33:SAB DB-80
672:Les Ailes
651:Les Ailes
633:Les Ailes
593:Les Ailes
575:Les Ailes
557:Les Ailes
535:Les Ailes
517:Les Ailes
340:Wingspan:
328:Capacity:
324:One pilot
308:Data from
191:tailplane
175:empennage
171:duralumin
132:high-wing
109:SAB DB-81
105:SAB DB-80
18:SAB DB-81
714:aircraft
401:2-bladed
260:Variants
222:ailerons
187:elevator
167:fuselage
160:radiator
146:and the
346:Height:
334:Length:
234:airfoil
426:Range:
393:radial
144:inline
119:Design
113:French
79:(SAB)
67:France
846:LH-70
841:DB-81
836:DB-80
831:AB-80
826:AB-22
821:AB-21
795:(SAB)
749:DB-81
744:DB-80
739:DB-70
734:DB-30
729:DB-20
724:DB-10
478:(PDF)
322:Crew:
279:DB-81
265:DB-80
226:spars
148:DB-81
47:Role
816:AB-2
615:2015
387:1 ×
230:ribs
181:and
165:The
107:and
103:The
539:381
363:9.0
179:fin
863::
670:.
659:^
649:.
631:.
591:.
573:.
555:.
537:.
533:.
515:.
504:^
494:.
458:^
240:.
209:.
97:2
783:e
776:t
769:v
704:e
697:t
690:v
617:.
361::
20:)
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