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The Potez 540 was a French multi-role aircraft of the 1930s. Designed and built by Potez, it served with the French Air Force as a reconnaissance bomber, also serving with the Spanish Republican Air Force during the Spanish Civil War. Although obsolete as a bomber, it remained in service in support roles and in France's overseas colonies at the start of World War II.

Potez 540
Aircraft Potez 54 fitted with 2 Hispano-Suiza 650 HP engines
Role Reconnaissance/bomber
Manufacturer Potez
First flight 14 November 1933
Introduction 1934
Primary user French Air Force
Number built 192
Serial 'Ñ' Potez 542 of the Spanish Republican Air Force. Its crash would inspire French writer André Malraux to make a movie named L'Espoir.
Serial 'Ñ' Potez 542 of the Spanish Republican Air Force. Its crash would inspire French writer André Malraux to make a movie named L'Espoir.

History


This two-engine aircraft was built by the French Potez company to fulfill a 1932 specification for a new reconnaissance bomber. Built as a private venture, this aircraft, designated the Potez 54, flew for the first time on 14 November 1933. Designed by Louis Coroller, it was intended as a four-seat aircraft capable of performing duties such as bomber, transport and long-range reconnaissance. The Potez 54 was a high-wing monoplane, of mixed wood and metal covering over a steel tube frame. The prototype had twin fins and rudders, and was powered by two 515 kW (690 hp) Hispano-Suiza 12Xbrs V-12 engines in streamlined nacelles, which were connected to the fuselage by stub wings. The main landing gear units retracted into the nacelles, and auxiliary bomb racks were mounted beneath the stub wings. There were manually operated turrets at the nose and dorsal positions, as well as a semi-retractable dustbin-style ventral turret. During development, the original tailplane was replaced by a single fin and rudder, and in this form, the type was re-designated the Potez 540 and delivered to the Armee de I'Air on 25 November 1934.[1] A total of 192 Potez 540s were built.

Their first combat was in the Spanish Civil War, where they were employed by the Spanish loyalist side. A poor design that was already obsolete just two years after its introduction, when confronted by the higher performance German and Italian planes of the same period, the Potez 540 proved itself a failure in Spanish skies during the Civil War and was labelled as 'Flying Coffin' (Spanish: Ataúd Volante) by Spanish Republican pilots.[2] In the late 1930s, these aircraft were becoming obsolete so they were withdrawn from reconnaissance and bombing duties and were relegated to French transport units. They were also employed as paratrooper training and transport aircraft. By September 1939 and the beginning of World War II, they had been largely transferred to the French colonies in North Africa, where they continued to function in transport and paratrooper service. Their role in even these secondary assignments was problematic given their poor defensive armament and vulnerability to modern enemy fighters. Following the French capitulation to Germany in June 1940, those Potez 540s still flying served the Vichy French Air Force mainly in the French overseas colonies. Most of these machines were retired or destroyed by late 1943.


Variants


Potez 54
One prototype, later converted (with twin tails) into the Potez 540 No. 1.
Potez 540
Production aircraft with 1 each of 590 kW (790 hp) Hispano-Suiza 12Xirs and 12Xjrs, (left and right hand rotation), V-12 inline engines. 185 built. Used by France and Spain.
Potez 541
540 re-engined with 640 kW (860 hp) Gnome-Rhône 14Kdrs radial engines. One converted from a 540.
Potez 542
Derivative of 540 powered by 540 kW (720 hp) Lorraine 12Hfrs Pétrel V-12 engines. 74 built. Used by France and Spain.
Potez 543
Production derivative of Potez 541, powered by 640 kW (860 hp) Gnome-Rhône 14Kdrs radial engines. 10 built for Romania, only eight were delivered and four were diverted to Spain for use by Spanish Republicans.

Operators


 France
 Italy
 Romania
Spanish Republic

Specifications (Potez 540)


General characteristics

Performance

Armament


See also


Aircraft of comparable role, configuration, and era

Related lists


References


  1. The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
  2. Potez 540/542 Archived 2011-08-11 at the Wayback Machine

Bibliography




Wikimedia Commons has media related to Potez 540.

На других языках

- [en] Potez 540

[fr] Potez 540

Le Potez 540 est un multiplace de combat français de l'entre-deux-guerres, qui symbolise l'application à la française des théories du célèbre général italien Giulio Douhet. Utilisé durant la guerre civile espagnole par une escadrille internationale commandée par André Malraux, il était encore employé au début de la Seconde Guerre mondiale par l'armée de l'air française comme avion de reconnaissance.

[it] Potez 540

Il Potez 540 fu un aereo da ricognizione/bombardiere bimotore monoplano ad ala alta sviluppato dall'azienda aeronautica francese Avions Henry Potez nei primi anni trenta.

[ru] Potez 54

Потэ 54 (фр. Potez 54) — французский средний бомбардировщик смешанной конструкции. Представлял собой подкосный моноплан с двумя двигателями в гондолах под крылом и убирающимся в гондолы шасси. Разрабатывался по концепции BCR (фр. bombardement, combat, renseignement — бомбардировка, (воздушный) бой, разведка (воздушный крейсер)). Самолёт разработан в конструкторском бюро фирмы «Аэропланс Анри Потэ». Серийное производство велось на заводе «Потэ» в Мельте с начала 1935 года.


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