408:
29:
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315:
386:
188:. While such routes required a high proportion of fuel to be carried onboard, the number of fuel tanks fitted could be increased or reduced to match the endurance required by a particular customer. Accordingly, the aircraft's payload capacity could be increased by removing several of the fuel tanks, which were housed inside of the wings. Furthermore, a
180:
set about the development of what would become the
Couzinet 70. Its design posed numerous challenges and pushed the bounds of aeronautical understanding at that time. It had a relatively high level of fineness, which was a somewhat controversial design choice at that time; the resulting aircraft
278:(underneath the pilot's seat) provided access into the wing and, via a 0.7 m (2.3 ft.) corridor, the lateral engines. Directly behind the cockpit, where the pilot and mechanic were seated, was a small crew rest area containing two couches; aft of this room was a sizable cabin where the
207:, both primary and secondary, that were connected via wooden strips and covered by plywood. Those bulkheads positioned directly above the wing spar supported the fittings which secured the wing and the fuselage together. The rear of the fuselage was tapered, akin to that of a
282:
and radio operator, along with their assorted apparatus, were located. A central walkway ran between the tail and this room, which permitted easy access to various elements, which included all of the steering controls, key piping connections, and the fuel cocks.
181:
being relatively difficult and expensive to fabricate. One positive result of the high fineness rate was the aircraft's ability to climb with only two of its three engines operational; it could also maintain horizontal flight with only one running engine.
218:
The aircraft was furnished with a large single-piece wing, possessing a span of 27m (88.58 ft.), a maximum chord of 5m (16.4 ft.), and a maximum thickness of almost 1m (3.28 ft.), which diminished both fore and aft of its axis. It had a
215:. The low-mounted wing, while structurally advantageous in easing the blending of the fuselage and wing together, negatively impacted the amount of fuselage space that could have been used to accommodate passengers.
273:
Various measures were incorporated to ease both maintenance and usability. A compact door in the cockpit (directly forward of the mechanic's position) permitted mid-flight access to the central engine while a
266:
was hinged to he horizontal stabilizer. Furthermore, it incorporated a special compensating device that was designed inhouse by
Couzinet, which broadly resembled the arrangement fitted on the
290:
comprised a pair of independent wheels, each one mounted in a housing directly underneath one of the side engines. They had a track gauge of 5.4 m (17.7 ft.) and were furnished with
258:
liquid-cooled piston engine, which was capable of producing up to 230 hp. Each engine directly drove a twin-bladed wooden propeller. Both the water and oil were cooled using
Lamblin
243:
of the main box were interspersed between intermediate trellis ribs. Supported by several wooden strips in addition to the spars, the exterior was covered with
721:
687:
444:
254:
It was powered by a total of three engines, one was installed within the aircraft's nose while the other two were on the wings. The powerplant used was a
302:
enclosed each wheel that formed a continuation of the engine cowling under which it was situated. The wheels were fitted with tires are non-derimmable
870:
156:
inline piston engines. The two wing mounted engines could be accessed mid-flight through tunnels in the wing. After route-proving in
850:
714:
420:
432:
177:
104:
50:
865:
860:
707:
648:
Bernard, Martin; Sparrow, Dave; Espérou, Bernard (December 2014). "F-1922 - The French Civil
Register from 1922".
398:
259:
184:
One principal performance attribute for the aircraft during its development was the ability to routinely conduct
138:
79:
263:
28:
262:. The planes of the tail unit were entirely composed of wood and had a plywood covering. The two-section
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Prototype modified for service as a mailplane, with lengthened nose and strut-braced tailplane.
196:
730:
165:
157:
130:
69:
133:. The Couzinet 70, which was larger than its predecessors, was developed originally as a
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system permitted the tanks to be emptied within one minute at the pilot's direction.
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239:. It had a wooden framework that comprised a pair of equal-size box spars. The
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The original prototype four place long range aircraft, later converted to the
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The fuselage, which was relatively robust, somewhat resembled the
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V-12 liquid-cooled piston engine , 485 kW (650 hp) each
354:
Converted from the
Couzinet 10. Lost in a crash on 8 August 1928.
703:
677:
The
Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)
240:
367:
powered prototype, one built and converted to a
Couzinet 71.
436:
Couzinet 70 3-view drawing from L'Aerophile
February 1933
148:
It was a low-wing monoplane that had a fixed tailwheel
160:, the aircraft was modified and re-designated as the
715:
528:6,800 km (4,225 mi, 3,671 nmi)
8:
164:and entered service with Aéropostale in May
688:National Advisory Committee for Aeronautics
445:National Advisory Committee for Aeronautics
722:
708:
700:
294:that consisted of 36 independent loops of
247:, the latter being treated with fireproof
211:, into a vertical edge that supported the
522:280 km/h (174 mph, 151 kn)
114:('Rainbow') was developed from the 1920s
616:
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467:16.15 m (52 ft 11.75 in)
231:, the latter being hinged to secondary
203:. Structurally, it comprised numerous
121:, which first flew on 7 May 1928, the
99:was a French three-engined commercial
15:
7:
691:, 1 July 1928. NACA-AC-77, 93R19960.
479:4.0 m (13 ft 1.5 in)
684:"Rene Couzinet monoplane (French)"
485:90 m (968.78 sq ft)
14:
473:30 m (98 ft 5 in)
406:
384:
178:Société des Avions René Couzinet
105:Société des Avions René Couzinet
51:Société des Avions René Couzinet
27:
497:16,790 kg (37,015 lb)
235:running parallel to the wing's
39:Long-range commercial monoplane
491:7,310 kg (16,116 lb)
1:
871:Aircraft first flown in 1932
421:Spanish Republican Air Force
176:During the early 1930s, the
887:
738:
26:
18:
851:1930s French mailplanes
452:General characteristics
172:Design and developments
437:
428:Specifications (70/71)
331:
143:South Atlantic service
103:designed and built by
435:
317:
186:transatlantic flights
152:and powered by three
578:NACA 1928, pp. 1, 3.
227:wingtips and narrow
679:. Orbis Publishing.
662:NACA 1928, pp. 4-7.
650:Air Britain Archive
638:NACA 1928, pp. 3-4.
629:NACA 1928, pp. 2-3.
324:Fernando de Noronha
505:Hispano-Suiza 12Nb
438:
365:Hispano-Suiza 12Nb
332:
256:Hispano-Suiza 12Nb
154:Hispano-Suiza 12Nb
76:Primary user
866:Couzinet aircraft
861:Low-wing aircraft
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60:11 February 1932
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620:NACA 1928, p. 2.
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569:NACA 1928, p. 5.
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557:NACA 1928, p. 1.
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330:on 14 June 1934.
318:The Couzinet 70
110:The Couzinet 70
41:Type of aircraft
31:
16:
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830:Air Couzinet 10
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520:Maximum speed:
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423:- Couzinet 101
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150:undercarriage
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131:René Couzinet
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65:Introduction
64:
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57:First flight
56:
55:
52:
49:
47:Manufacturer
46:
45:
38:
35:
34:
30:
25:
22:
17:
823:Couzinet 150
818:Couzinet 110
813:Couzinet 103
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808:Couzinet 101
807:
803:Couzinet 100
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670:Bibliography
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798:Couzinet 80
793:Couzinet 71
788:Couzinet 70
783:Couzinet 60
778:Couzinet 40
773:Couzinet 33
768:Couzinet 30
763:Couzinet 22
758:Couzinet 21
753:Couzinet 20
748:Couzinet 11
743:Couzinet 10
652:: 2014/170.
513:Performance
501:Powerplant:
399:Aéropostale
343:Couzinet 11
337:Arc en Ciel
320:Arc-en-Ciel
268:Blériot 165
225:streamlined
221:trapezoidal
201:flying boat
162:Couzinet 71
139:Aéropostale
137:for use of
127:Couzinet 40
123:Couzinet 11
119:Arc-en-Ciel
116:Couzinet 10
97:Couzinet 70
80:Aéropostale
21:Arc-en-Ciel
845:Categories
533:References
483:Wing area:
135:mail plane
856:Trimotors
538:Citations
471:Wingspan:
441:Data from
378:Operators
298:cable. A
280:navigator
260:radiators
205:bulkheads
101:monoplane
86:Produced
733:aircraft
731:Couzinet
310:Variants
264:elevator
229:ailerons
477:Height:
465:Length:
306:tyres.
300:cowling
276:manhole
245:plywood
223:shape,
526:Range:
411:
392:France
389:
328:Brazil
304:Dunlop
296:rubber
213:rudder
459:Crew:
414:Spain
233:spars
209:whale
199:of a
36:Role
503:3 ×
461:Four
357:70
286:The
249:dope
241:ribs
197:hull
166:1934
158:1933
125:and
95:The
70:1934
68:May
348:11
335:10
322:at
141:'s
129:by
19:70
847::
605:^
583:^
562:^
546:^
370:71
326:,
270:.
251:.
168:.
145:.
107:.
89:3
723:e
716:t
709:v
345:.
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