Breguet Bre.521 Bizerte

Breguet Bre.521 Bizerte Breguet Bre.521 Bizerte
Originální název:
Original Name:
Breguet Bre.521 Bizerte
průzkumný/pozorovací letoun reconnaissance/scout aeroplane
DD.MM.1933-DD.04.1937 Société anonyme des ateliers d’aviation Louis Breguet, Le Havre /
DD.04.1937-DD.MM.1940 Société nationale de constructions aéronautiques du Nord, Le Havre /
Období výroby:
Production Period:
Vyrobeno kusů:
Number of Produced:
První vzlet:
Maiden Flight:
Základní charakteristika:
Basic Characteristics:
Vzlet a přistání:
Take-off and Landing:
CTOL - konvenční vzlet a přistání CTOL - conventional take-off and landing
Uspořádání křídla:
Arrangement of Wing:
dvouplošník biplane
Uspořádání letounu:
Aircraft Concept:
klasické conventional
pevný fixed
Přistávací zařízení:
Landing Gear:
člunový trup flying boat
Technické údaje:
Technical Data:
Hmotnost prázdného letounu:
Empty Weight:
9480 kg 20900 lb
Vzletová hmotnost:
Take-off Weight:
15105 kg 33301 lb
Maximální vzletová hmotnost:
Maximum Take-off Weight:
16600 kg 36597 lb
35,13 m 115ft 3,06in
20,48 m 67ft 2,29in
7,45 m 24ft 5,31in
Plocha křídla:
Wing Area:
162,60 m2 1750.21 ft2
Plošné zatížení:
Wing Loading:
? kg/m2 ? lb/ft2
pístový piston
Počet motorů:
Number of Engines:
Gnome-Rhône 14Kirs/Kjrs Mistral Major vzduchem chlazený dvouhvězdicový čtrnáctiválec o vzletovém výkonu 625 kW (850 k) při 2 400 ot/min, bojový výkon 691 kW (940 k) v h= 2 600 m a nominální výkon 566 kW (770 k) nebo později
Gnome-Rhône 14N o výkonu 662 kW
Gnome-Rhône 14Kirs Mistral Major ourteen-cylinder air-cooled two-row radial engine rated at 838 hp at 2,400 rpm for take-off, combat power 927 hp at 8,530 ft and nominal power output 760 hp at optimum level or later
Gnome-Rhône 14N, power 888 hp
Objem palivových nádrží:
Fuel Tank Capacity:
5240 l 1,153 Imp gal / 1,384 US gal
Maximální rychlost:
Maximum Speed:
243 km/h v 1000 m 151 mph in 3281 ft
Cestovní rychlost:
Cruise Speed:
200 km/h v ? m 124.3 mph in ? ft
Rychlost stoupání:
Climb Rate:
? m/s ? ft/min
Čas výstupu na výšku:
Time to Climb to:
8,75 min do 2000 m 8,75 min to 6562 ft
Operační dostup:
Service Ceiling:
6000 m 19685 ft
2100 km 1304.9 mi
Maximální dolet:
Maximum Range:
3000 km 1864.1 mi
2x pohyblivý kulomet Darne ráže 7,5 mm na přídi
2x pohyblivý kulomet Darne ráže 7,5 mm na bocích
1x kulomet Darne ráže 7,5 mm v ocasní věži

300 kg pum
2x flexible 7.5 mm Darne machine gun, sides of the nose
2x flexible 7.5 mm Darne machine gun, lateral position
1x 7.5 mm Darne machine gun in the tail turret

660 lb of bombs
Uživatelské státy:
User States:

- -
Němeček, Václav. Breguet Bre-521 Bizerte, L+K 1989/02.
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Breguet Bre.521 Bizerte


In 1931, the French Navy purchased the S-8 Calcutta transport flying boat from Short. After successful trials, Breuget was commissioned to begin licensed series production, which consisted of four machines. The company then redesigned the aircraft and developed it into its own type. The new aircraft was significantly larger and had more powerful engines. Otherwise, it was also a flying boat of all-metal construction of the airframe, tail and nose surfaces. The type was adopted and built in two versions. For the civilian interested, the transport was the Bre.530 Saigon. Only two of these were eventually built, powered by three Hispano-Suiza 12Ybr engines and carrying 20 passengers.

For the Navy, the Bre.521 version was intended. The military prototype first flew on 11 September 1933 and was powered by a trio of Gnome-Rhone 14 Kdrs engines of 606 kW (825 hp) each. The aircraft had three open firing ports with Darne 7.5 mm (0.5 in) machine guns and a crew of eight men. Extensive trials followed and in April 1935 the machine was sent to Cherbourg's 1E2 Squadron for evaluation. As early as April 1934, three production machines were ordered. They were powered by three Gnome-Rhone 14 Kirs 1 engines of 662 kW (900 hp) each, and the number of gunports increased to four, with a gun turret at the stern. All crew compartments were covered. The main purpose of the deployment was long-range maritime reconnaissance.

The planes proved to be a success and more were ordered. One of them was built in the Bre.522 version. This aircraft was powered by Hispano-Suiza 14AA engines, also of 900 hp The last batch of three units, powered by Gnome-Rhone 14 N-1 engines of the same power, was delivered to the Navy in early 1940. In total, 32 examples were built over seven years of production.

The aircraft proved very successful and was used by 5 squadrons of the French Navy. After the outbreak of war, it carried out long-range reconnaissance over the Atlantic and Mediterranean. Twenty aircraft survived the Blitzkrieg, ten of which were used by 1E and 9E squadrons of the Vichy French Navy. After its occupation, they were seized by the Luftwaffe and added to the machines already in use. The Luftwaffe successfully used the type as a rescue from bases in the Orient and Saint Mandriere.

After the Allied invasion of southern France in August 1944, one airworthy Bre.521 was discovered by French soldiers and the aircraft was subsequently used by the 9FTr until the spares stock was exhausted.

L+K 2/89
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Breguet Bre.521 Bizerte Francouzského námořnictva
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Breguet Bre.521 Bizerte v barvách Luftwaffe
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Schéma letounu a snímky na vodní hladině

Breguet Bre.521 Bizerte -

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