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The Bréguet 730 was a French flying boat of the 1930s. Built to meet the requirements of the French Navy, it was ordered into production but no aircraft were delivered before France surrendered to Germany in June 1940. Four remaining incomplete airframes were completed after the end of World War II, serving with the French Navy until 1954.

Br.730/Br.731
Bréguet 731 Bellatrix model at Musée national de la Marine.
Role Reconnaissance Flying Boat
Manufacturer Bréguet
First flight 4 April 1938 (Br 730)
2 September 1947 (Br 731)
Introduction 1945
Retired 1954
Primary user French Navy
Number built 5

Development


The prototype Bréguet 730 in 1938.
The prototype Bréguet 730 in 1938.

The French Navy issued a specification for a new long-range flying boat to replace the obsolete 521 Bizerte in May 1935. Bréguet designed a large four engined flying boat to meet the requirement, the Breguet 730, competing against designs by Latécoère (the Latécoère 611), Lioré et Olivier (the LeO H-440) and Potez-CAMS (the Potez-CAMS 141).

The first prototype, the Br.730-01, powered by 750 kW (1,010 hp) Gnome-Rhône 14N-2 and Gnome-Rhône 14N-3 engines, flew on 4 April 1938 at Le Havre. The N-2 engines were fitted at No.1 and No.3 positions and the N-3s at No.2 and No.4 positions, rotating in opposite directions.[1] It was wrecked, however, on 16 July 1938 when it attempted to land in shallow water. Despite this setback, however, an order for four production aircraft was placed, followed by a contract for unlimited production on the outbreak of World War II in September 1939. This order was cut in early 1940 when it realised that attrition of maritime patrol aircraft was very low.[1]


Operational history


No production aircraft had been completed when France surrendered on 22 June 1940, when production was suspended. It was restarted by the Vichy government, with the wing of the wrecked prototype being combined with the hull of the first production machine to produce the Br. 730 No.1, which was ready to fly when the German invasion of Vichy France prevented testing. Production of the remaining 11 aircraft continued extremely slowly under German occupation, with eight being destroyed in an Allied air raid on 6 April 1944.[1]

The Br.730 No.1 was finally flown for the first time in December 1944, after the Germans retreated from the South of France. This aircraft, named Véga, was delivered to the French Navy, who used it as a long-range transport in April 1945,[2] with a second Br.730 (Sirius) completed in May 1946.[1] The remaining two aircraft (Altair and Bellatrix) were completed with redesigned nose, new floats and more powerful engines, and were designated Br.731.

Véga was destroyed in a crash in January 1949,[2] with a second aircraft being destroyed in 1951.[3] The last Br.731 was retired on 20 January 1954.[3]


Variants


Br.730-01
Prototype. Powered by four 753 kW (1,010 hp) Gnome-Rhône 14N 2/3 engines.
Br.730
Production version. Powered by four 835 kW (1,120 hp) Gnome-Rhône 14N 44/45 engines. Two built.
Br.731
Modified nose and floats. Powered by 1,010 kW (1,350 hp) Gnome-Rhône 14R 200/201 engines. Two built.

Operators


 France


Specifications (Br.730)


Bregeut 730 3-view drawing from L'Aerophile January 1944
Bregeut 730 3-view drawing from L'Aerophile January 1944

Data from Warplanes of the Second World War, Volume Five, Flying Boats [1] Jane's all the World's Aircraft 1947[4]

General characteristics

Performance


See also


Aircraft of comparable role, configuration, and era

Related lists


References


  1. Green, William (1968). Warplanes of the Second World War, Volume Five, Flying Boats. London: Macdonald. pp. 10–12. ISBN 978-0-356-01449-4.
  2. "Histoire de la BAN Saint-Mandrier (1944–1950)" (in French). Retrieved 2008-01-08.
  3. "Histoire de la BAN Saint-Mandrier (1951–1959)" (in French). Retrieved 2008-01-08.
  4. Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. pp. 119c.

Bibliography





На других языках


- [en] Bréguet 730

[fr] Breguet 730

Le Breguet 730 est un hydravion français des années 1930. Il a été construit pour répondre au cahier des charges de la Marine nationale française. Il y eut une commande passée mais aucun exemplaire ne fut livré avant l'Armistice du 22 juin 1940 où la France se rendit face à l'Allemagne nazie. Quatre cellules incomplètes furent terminées à la fin de la Seconde Guerre mondiale qui servirent dans l'Aéronavale jusqu'en 1954.

[it] Breguet Bre 730

Il Breguet Bre 730, citato anche come Breguet Br 730 o Breguet 730, fu un idroricognitore a scafo centrale, quadrimotore, monoplano ad ala alta, sviluppato dall'azienda aeronautica francese Société anonyme des ateliers d'aviation Louis Breguet nei tardi anni trenta.

[ru] Breguet Br.730

Бреге Br.730 (фр. Breguet Br.730) — французский гидросамолёт 1930-х годов. Выпускался в 1939—1949 годах.



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