The Breguet 901 Mouette (English: Seagull) is a single seat French competition sailplane from the 1950s. It was the winner at both the 1954 and 1956 World Gliding Championships.
Breguet's first sailplane, the Type 900, had some success in national competitions but failed to impress at the two World Championships of 1950 and 1952, partly because of its short wingspan.[1] The 901 is a development of this aircraft, retaining its mid wing layout and largely wooden construction. The wing of the 901 is straight tapered and built around a single spar, with a leading edge torsion box and fabric covered aft of the spar. On the 901 the torsion box was skinned with a plywood-klegecell (a plastic foam) sandwich rather than the ply of the 900. At 17.32 m (57 ft 8 in), its span is 2.97 m (9 ft 9 in) greater than the 900, raising the aspect ratio from 12.9 to 20. There are long span, short chordslotted flaps inboard, mid-chord airbrakes and tips finished with small "salmon" fairings. Both designs have plywood skinned fuselages, though that of the 901 is longer in the nose where the cockpit has an extended, single piece canopy.[1][2][3]
The first two 901s built retained the curved vertical tail of the 900[4][5] but the third[2][5] had a straight topped shape with a rudder that was straight edged except at the heel. The 901's undercarriage is a retractable monowheel, fitted with a brake, plus a tail bumper.[2]
The 901 flew for the first time in March 1954. In 1956 it was developed into the 901S, which had a fuselage 510 mm (20 in) longer with a similar large area rudder like that of the 901 third prototype. A further development, the 901S1, had a more angular rudder and a fin without a fuselage fillet.[3]
Operational historyedit
Gerard Pierre won the 1954 World Gliding Championships in the first prototype 901 only four months after its first flight. The second prototype, flown by G. Rousselet, finished in seventh place.[6] By the time of the 1956 Championships the 901 had been developed into the 901S; Paul MacCready piloted it to a second Breguet championship victory.[6]
As well as its international achievements the 901 set, and sometimes reset, numerous French national records.[3]
Nine 901S remained on the French register in 2010.[7]
Original version. Third example had a straight topped vertical tail with a straight edged rudder apart from a rounded heel. Retained fin-fuselage fillet. 3 built.
901S
510 mm longer, larger, tail similar to third 901, modified flaps, heavier. 21 built.
901S1
As 901 but with rudder straight edged without rounded heel, no fillet. 9 built.
901S2
3 built.
Aircraft on displayedit
Of the numerous 901s with French museums, two are on public display:
^Partington, Dave (2010). European registers handbook 2010. Air Britain (Historians) Ltd. ISBN978-0-85130-425-0.
Bibliographyedit
Cuny, Jean & Leyvastre, Pierre (1977). Les Avions Breguet (1940/1971). DOCAVIA (in French). Vol. 6. Paris: Editions Larivière. OCLC 440863702.
Lacaze, Henri (2016). Les avions Louis Breguet Paris [The Aircraft of Louis Breguet, Paris] (in French). Vol. 2: le règne du monoplan. Le Vigen, France. ISBN978-2-914017-89-3.{{cite book}}: CS1 maint: location missing publisher (link)
Further readingedit
(PDF). Sailplane & Gliding. VII (4): 170. August 1956. Archived from the original (PDF) on 2012-04-06.
External linksedit
Wikimedia Commons has media related to Bréguet 901 Mouette.
Breguet-901
Breguet 901-07 F-CCHO
March 17, 2024
bréguet, mouette, breguet, mouette, english, seagull, single, seat, french, competition, sailplane, from, 1950s, winner, both, 1954, 1956, world, gliding, championships, mouettebreguet, mouette, caja, role, single, seat, competition, sailplanenational, origin,. The Breguet 901 Mouette English Seagull is a single seat French competition sailplane from the 1950s It was the winner at both the 1954 and 1956 World Gliding Championships 901 MouetteBreguet Br 901 Mouette F CAJA Role Single seat competition sailplaneNational origin FranceManufacturer Societe des Ateliers d Aviation Louis Breguet Breguet Aviation Designer Jean CaylaFirst flight 11 March 1954Produced 1955 9Number built c 36 Contents 1 Design and development 2 Operational history 3 Variants 4 Aircraft on display 5 Specifications 901S 6 References 7 Bibliography 8 Further reading 9 External linksDesign and development editBreguet s first sailplane the Type 900 had some success in national competitions but failed to impress at the two World Championships of 1950 and 1952 partly because of its short wingspan 1 The 901 is a development of this aircraft retaining its mid wing layout and largely wooden construction The wing of the 901 is straight tapered and built around a single spar with a leading edge torsion box and fabric covered aft of the spar On the 901 the torsion box was skinned with a plywood klegecell a plastic foam sandwich rather than the ply of the 900 At 17 32 m 57 ft 8 in its span is 2 97 m 9 ft 9 in greater than the 900 raising the aspect ratio from 12 9 to 20 There are long span short chord slotted flaps inboard mid chord airbrakes and tips finished with small salmon fairings Both designs have plywood skinned fuselages though that of the 901 is longer in the nose where the cockpit has an extended single piece canopy 1 2 3 The first two 901s built retained the curved vertical tail of the 900 4 5 but the third 2 5 had a straight topped shape with a rudder that was straight edged except at the heel The 901 s undercarriage is a retractable monowheel fitted with a brake plus a tail bumper 2 The 901 flew for the first time in March 1954 In 1956 it was developed into the 901S which had a fuselage 510 mm 20 in longer with a similar large area rudder like that of the 901 third prototype A further development the 901S1 had a more angular rudder and a fin without a fuselage fillet 3 Operational history editGerard Pierre won the 1954 World Gliding Championships in the first prototype 901 only four months after its first flight The second prototype flown by G Rousselet finished in seventh place 6 By the time of the 1956 Championships the 901 had been developed into the 901S Paul MacCready piloted it to a second Breguet championship victory 6 As well as its international achievements the 901 set and sometimes reset numerous French national records 3 Nine 901S remained on the French register in 2010 7 Variants editProduction numbers from 5 901 Original version Third example had a straight topped vertical tail with a straight edged rudder apart from a rounded heel Retained fin fuselage fillet 3 built 901S 510 mm longer larger tail similar to third 901 modified flaps heavier 21 built 901S1 As 901 but with rudder straight edged without rounded heel no fillet 9 built 901S2 3 built Aircraft on display editOf the numerous 901s with French museums two are on public display Musee de l Air et de l Espace Le Bourget 901 F CAJA the first prototype and 1954 World Championship winner Musee Regional de l Air Marce 901S F CCCPSpecifications 901S editData from Die berumtesten Segelflugzeuge 3 General characteristicsCrew 1 Length 7 57 m 24 ft 10 in Wingspan 17 32 m 56 ft 10 in Wing area 15 0 m2 161 sq ft Aspect ratio 20 Airfoil NACA 63 series Empty weight 265 kg 584 lb Gross weight 430 kg 948 lb Performance Stall speed 62 km h 39 mph 33 kn Never exceed speed 220 km h 140 mph 120 kn Rough air speed max 180 km h 111 8 mph 97 2 kn Aerotow speed 150 km h 93 2 mph 81 0 kn Maximum glide ratio 35 at 85 km h 52 8 mph 45 9 kn Rate of sink 0 60 m s 118 ft min at 72 km h 44 7 mph 38 9 kn Wing loading 28 0 kg m2 5 7 lb sq ft References edit a b Simons Martin 2006 Sailplanes 1945 1965 2nd revised ed Konigswinter EQIP Werbung amp Verlag GmbH pp 59 61 ISBN 3 9807977 4 0 a b c Bridgman Leonard 1956 Jane s All the World s Aircraft 1956 57 London Jane s All the World s Aircraft Publishing Co Ltd p 131 a b c d Brutting Georg 1973 Die berumtesten Segelflugzeuge Stuttgart Motorbuch Verlag pp 141 2 ISBN 3 87943171 X First prototpye 901 production list Retrieved 18 April 2012 a b c Breguet production list Retrieved 18 April 2012 a b Single Seater Championship Results PDF Gliding 5 3 79 Autumn 1954 Partington Dave 2010 European registers handbook 2010 Air Britain Historians Ltd ISBN 978 0 85130 425 0 Bibliography editCuny Jean amp Leyvastre Pierre 1977 Les Avions Breguet 1940 1971 DOCAVIA in French Vol 6 Paris Editions Lariviere OCLC 440863702 Lacaze Henri 2016 Les avions Louis Breguet Paris The Aircraft of Louis Breguet Paris in French Vol 2 le regne du monoplan Le Vigen France ISBN 978 2 914017 89 3 a href Template Cite book html title Template Cite book cite book a CS1 maint location missing publisher link Further reading edit 1956 World Gliding Championship Results PDF Sailplane amp Gliding VII 4 170 August 1956 Archived from the original PDF on 2012 04 06 External links edit nbsp Wikimedia Commons has media related to Breguet 901 Mouette Breguet 901 Breguet 901 07 F CCHO Retrieved from https en wikipedia org w index php title Breguet 901 Mouette amp oldid 1175999694, wikipedia, wiki, book, books, library,
