29:
289:
116:(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.
237:
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
193:
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
123:
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
189:
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
691:
865:
855:
870:
770:
684:
239:
880:
28:
781:
113:
104:
light transports aimed at the air mail market whilst carrying two passengers. Identical apart from their engines, they flew in mid-1930.
65:
288:
217:, rather than the traditional one or two, and the detail of their caps or flanges, rather than the shape of the longitudinal braces or
885:
677:
860:
875:
162:. Its underside was smoothly bellied, its upper side flat. In plan its taper was delayed until aft of the cabin. Its
763:
347:
148:
205:
of 9. In plan it was straight tapered on both edges but with semi-elliptical tips curved particularly on the
834:
175:
748:
242:
for official trials of the DB-20. In
October the DB-80 was re-engined with a Lorraine and renamed DB-81.
756:
727:
722:
717:
712:
463:
226:
258:
128:
182:
at mid-fuselage height. Like the fuselage, all the tail surfaces were covered with ribbed duralumin.
147:. The latter was mounted on a hinged frame for easy servicing. The Hispano engined had a Lamblin
596:
214:
218:
158:
was built around four longerons, with rectangular frames and covered in longitudinally ribbed
245:
There is no record of any further examples being built nor of measured performance figures.
700:
262:
171:
132:
127:. Two differently engined versions were built: the DB-80 had a 100 hp (75 kW)
195:
480:
849:
656:
635:
617:
577:
559:
541:
381:
276:
206:
144:
519:
501:
202:
186:
124:
799:
794:
377:
272:
201:
The DB-80's high, cantilever wing was unusual both in its construction and high
140:
265:. Re-engined with Lorraine in October 1930, becoming second DB-81. One built.
190:
40:
819:
814:
809:
804:
179:
163:
159:
120:
669:
174:, the latter cut away at its base to allow for movement of the one-piece
155:
292:
Dyle et
Bacalan DB-80 3-view drawing from NACA Aircraft Circular No.123
222:
210:
225:
profile. A similar but not identical wing structure was used on the
101:
55:
299:
NACA Aircraft
Circular no.123 (1930) Performance figures calculated
119:
The DB-80 was aimed at the airmail market and was a single-engine,
287:
464:"NACA Aircraft Circulars no.123: The Dyle and Bacalan "D.B. 80""
752:
673:
167:
384:, 89 kW (120 hp) maximum continuous, at 1,350 rpm
213:
were full span and broad. The wing was built around three
166:
was conventional, with a straight-tapered, blunt-topped
370:
180 L (40 imp gal; 48 US gal)
279:and 750 mm (29.5 in) shorter. One built.
636:"Aérodrome en aérodrome – à Bordeaux-Merignac"
618:"Aérodrome en aérodrome – à Bordeaux-Merignac"
578:"Aérodrome en aérodrome – à Bordeaux-Merignac"
560:"Aérodrome en aérodrome – à Bordeaux-Merignac"
542:"Aérodrome en aérodrome – à Bordeaux-Merignac"
764:
685:
8:
771:
757:
749:
692:
678:
670:
651:
649:
112:In 1929 Dyle and Bacalan were reformed as
496:
494:
405:200 km/h (120 mph, 110 kn)
411:170 km/h (110 mph, 92 kn)
444:
423:4,500 m (14,800 ft) practical
417:950 km (590 mi, 510 nmi)
520:"Le monoplan Dyle et Bacalan, D.B. 20"
458:
456:
454:
452:
450:
448:
18:
429:5 min to 1,000 m (3,300 ft)
7:
238:pilot Charles Deschamps' absence at
856:1930s French civil utility aircraft
595:Bruno Parmentier (30 August 1998).
261:upright six cylinder, water-cooled
131:six-cylinder, upright water-cooled
657:"Figure caption – Lorraine fitted"
14:
337:2.90 m (9 ft 6 in)
331:12 m (39 ft 4 in)
27:
871:Single-engined tractor aircraft
502:"L'avion postal léger D. B. 80"
481:"L'avion postal de jour D.B.80"
343:16 m (170 sq ft)
325:8 m (26 ft 3 in)
16:1930s French transport aircraft
100:were single-engine, all-metal
1:
364:1,100 kg (2,425 lb)
881:Aircraft first flown in 1930
624:(481): 12. 4 September 1930.
866:Société Aérienne Bordelaise
782:Société Aérienne Bordelaise
663:(488): 13. 23 October 1930.
358:678 kg (1,495 lb)
151:on the fuselage underside.
139:a 120 hp (89 kW)
114:Société Aérienne Bordelaise
66:Société Aérienne Bordelaise
902:
642:(486): 12. 9 October 1930.
435:80 km/h (50 mph)
790:
708:
566:(462): 13. 24 April 1930.
548:(458): 13. 27 March 1930.
271:120 hp (89 kW)
257:100 hp (75 kW)
39:Postal and two passenger
26:
21:
886:Dyle et Bacalan aircraft
508:(457): 3. 23 March 1930.
178:mounted on a triangular
861:1930s French mailplanes
584:(472): 13. 3 July 1930.
487:(132): 163–6. May 1930.
304:General characteristics
187:tailwheel undercarriage
185:The DB-80 had a fixed,
293:
284:Specifications (DB-81)
779:Aircraft produced by
291:
227:Dyle et Bacalan DB-20
530:: 3. 4 October 1928.
469:. NACA. August 1930.
876:High-wing aircraft
294:
41:transport aircraft
843:
842:
746:
745:
427:Time to altitude:
221:, determined the
172:unbalanced rudder
90:
89:
893:
773:
766:
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750:
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468:
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421:Service ceiling:
398:
306:
259:Hispano-Suiza 6P
129:Hispano-Suiza 6P
83:
52:
44:Type of aircraft
31:
19:
901:
900:
896:
895:
894:
892:
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846:
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839:
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704:
701:Dyle et Bacalan
698:
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433:Take-off speed:
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302:
286:
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196:shock absorbers
110:
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51:National origin
50:
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17:
12:
11:
5:
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485:L'Aéronautique
472:
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406:
403:Maximum speed:
392:
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368:Fuel capacity:
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319:Two passengers
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275:five cylinder
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207:trailing edges
143:five-cylinder
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658:
652:
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631:
628:
623:
619:
613:
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598:
597:"S.A.B DB-81"
591:
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583:
579:
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409:Cruise speed:
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362:Gross weight:
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356:Empty weight:
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277:radial engine
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263:inline engine
260:
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145:radial engine
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85:
80:
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76:27 June 1930
75:
73:First flight
72:
71:
67:
64:
62:Manufacturer
61:
60:
57:
54:
49:
48:
42:
38:
35:
34:
30:
25:
20:
829:
824:
780:
737:
732:
660:
639:
630:
621:
612:
600:. Retrieved
590:
581:
572:
563:
554:
545:
536:
527:
523:
514:
505:
484:
475:
432:
426:
420:
414:
408:
402:
395:
393:
387:
378:Lorraine 5Pc
373:
367:
361:
355:
348:Aspect ratio
346:
340:
334:
328:
322:
316:
310:
303:
301:
296:
295:
273:Lorraine 5Pc
244:
240:Villacoublay
236:
209:, where its
203:aspect ratio
200:
184:
153:
141:Lorraine 5Pc
136:
125:leading edge
118:
111:
97:
93:
91:
82:Number built
800:SAB-SEMA 12
795:SAB-SEMA 10
396:Performance
388:Propellers:
380:5-cylinder
374:Powerplant:
233:Development
850:Categories
602:1 December
440:References
341:Wing area:
191:cantilever
22:SAB DB-80
661:Les Ailes
640:Les Ailes
622:Les Ailes
582:Les Ailes
564:Les Ailes
546:Les Ailes
524:Les Ailes
506:Les Ailes
329:Wingspan:
317:Capacity:
313:One pilot
297:Data from
180:tailplane
164:empennage
160:duralumin
121:high-wing
98:SAB DB-81
94:SAB DB-80
703:aircraft
390:2-bladed
249:Variants
211:ailerons
176:elevator
156:fuselage
149:radiator
135:and the
335:Height:
323:Length:
223:airfoil
415:Range:
382:radial
133:inline
108:Design
102:French
68:(SAB)
56:France
835:LH-70
830:DB-81
825:DB-80
820:AB-80
815:AB-22
810:AB-21
784:(SAB)
738:DB-81
733:DB-80
728:DB-70
723:DB-30
718:DB-20
713:DB-10
467:(PDF)
311:Crew:
268:DB-81
254:DB-80
215:spars
137:DB-81
36:Role
805:AB-2
604:2015
376:1 ×
219:ribs
170:and
154:The
96:and
92:The
528:381
352:9.0
168:fin
852::
659:.
648:^
638:.
620:.
580:.
562:.
544:.
526:.
522:.
504:.
493:^
483:.
447:^
229:.
198:.
86:2
772:e
765:t
758:v
693:e
686:t
679:v
606:.
350::
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