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during the take-off and landing phase, as well as, more particularly, during manoeuvres out of the vertical positioning. To address some of these problems, as well as to provide a way to achieve vertical lift, SNECMA set to work on what was to become the first model of the Atar
Volants.
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There were at least four Atar Volant models constructed, each improving or making alterations on the last: the first (C.400 P.1), C.400 P.2, C.400 P.3. and the last, the C.450-01. The second in the series had much success at an international air display in
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256:, and the third became a full-scale coleopter in its own right, due to numerous improvements and alterations made to the model. The C.450-01 model's maiden flight took place in May 1959. Two months later, while being put through its paces, the single
221:
designed to land vertically. The benefit of this annular wing was the requirement for very little landing or take-off space. However, the design of the Coléoptère met with many problems, such as overcoming the
198:
lift, which was precisely its purpose. There were later Atar Volant models, each made improvements and alterations to the previous designs, and eventually resulted in a full-fledged craft.
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or "Vertical Take-Off and
Landing" aircraft that was designed by SNECMA during the 1950s. While the Coléoptère was not the first VTOL aircraft, none of its predecessors had an
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Roux, Robert J. (May 1977). "Atar Volant et Coléoptère (2): de drôles de bêtes du temps passé" [Atar Volant and
Coleoptère, Part 2: Funny Beasts from the Past].
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The second research vehicle with an ejection seat for the pilot, sat on top of the fuselage. First free flight on 14 May 1957
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was seriously injured, and the prototype wrecked, resulting in the abandoning of its development and the project.
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The third research vehicle with a tilting ejection seat in an enclosed cockpit, similar to that of the
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turbojet engine, 28.04 kN (6,303 lbf) thrust vertically-mounted with jet-deflection nozzle
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and remote-control equipment, the unit weighed 5,600 pounds (2,500 kg), and generated a
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First remotely piloted research vehicle powered by a 28.44 kN (6,393 lbf)
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428:. London: Jane's All the World's Aircraft Publishing Co. Ltd. pp. 166–167.
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X-Planes of Europe: Secret
Research Aircraft from the Golden Age 1946-1974
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538:: The Coleopter - a revolutionary experimental aircraft (5 February 1959)
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491:. Vol. 1: Post War Fighters. Manchester, UK: Crecy Publishing.
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178:" series. Encased in a basic fairing which could hold
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468:Buttler, Tony & Delezenne, Jean-Louis (2012).
443:(in French). Paris: Editions EPA. p. 180.
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243:Improvements, alterations and later models
226:imparted to a vertical engine by its own
66:Learn how and when to remove this message
314:Jane's All the World's Aircraft 1958-59,
275:Jane's All the World's Aircraft 1958-59
29:This article includes a list of general
472:. Manchester, UK: Hikoki Publications.
426:Jane's All the World's Aircraft 1958-59
413:
77:
194:); the Atar Volant was able to cause
7:
551:Above Source Translated into English
487:Carbonel, Jean-Christophe (2016).
441:Les Avions Francais de 1944 a 1964
35:it lacks sufficient corresponding
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340:1.5 m (4 ft 11 in)
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20:
424:Bridgman, Leonard, ed. (1958).
334:7 m (23 ft 0 in)
589:Snecma/Safran aircraft engines
1:
352:2,600 kg (5,732 lb)
346:2,000 kg (4,409 lb)
358:500 kg (1,102 lb)
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307:Specifications (C.400 P.2)
543:French information source
439:Gaillard, Pierre (1990).
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85:
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847:Snecma aircraft engines
530:Virtual Aviation Museum
510:(in French) (90): 6–9.
319:General characteristics
300:SNECMA C.450 Coléoptère
186:of approximately 6,200
148:SNECMA C.450 Coléoptère
50:more precise citations.
842:1950s turbojet engines
768:Europrop International
489:French Secret Projects
202:Background and purpose
508:Le Fana de l'Aviation
402:List of VTOL aircraft
95:Atar Volant C.400 P2
230:wheels and rotating
397:History of Aviation
286:mounted vertically.
662:Spacecraft engines
174:as part of their "
157:SNECMA Atar Volant
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722:CFM International
714:Joint development
498:978-1-91080-900-6
479:978-1-902-10921-3
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350:Gross weight:
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260:crashed. The
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56:February 2014
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698:Experimental
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188:pounds-force
170:produced by
160:
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133:Number built
81:Atar Volant
62:
53:
34:
794:Olympus 593
786:Rolls-Royce
653:Silvercrest
615:Atar Volant
546:(in French)
374:Performance
362:Powerplant:
48:introducing
836:Categories
705:Coléoptère
408:References
383:4 minutes
381:Endurance:
366:Atar 101DV
284:Atar 101DV
273:Data from:
250:Le Bourget
232:compressor
208:Coléoptère
31:references
630:Turbofans
597:Turbojets
516:0757-4169
338:Diameter:
312:Data from
295:C.400 P.3
289:C.400 P.2
279:C.400 P.1
258:prototype
776:TP400-D6
750:PowerJet
679:PPS-1350
610:Atar 101
391:See also
268:Variants
236:jet pipe
196:vertical
165:turbojet
161:C.400 P1
104:Turbojet
689:Vulcain
332:Length:
228:turbine
216:annular
44:improve
817:Larzac
809:Safran
758:SaM146
669:Viking
514:
495:
476:
447:
224:torque
210:was a
190:(27.6
184:thrust
172:SNECMA
168:engine
126:Snecma
116:France
33:, but
730:CFM56
684:Vinci
326:Crew:
262:pilot
254:Paris
252:, in
155:The
100:Type
799:M45H
740:RISE
735:LEAP
674:HM7B
638:M45G
605:Atar
512:ISSN
493:ISBN
474:ISBN
445:ISBN
364:1 Ă—
219:wing
212:VTOL
206:The
180:fuel
176:Atar
648:M88
643:M53
620:M45
159:or
838::
416:^
192:kN
137:3
581:e
574:t
567:v
518:.
501:.
482:.
453:.
385:+
328:1
302:.
69:)
63:(
58:)
54:(
40:.
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