Wibault 7 Explained

The Wibault 7 was a 1920s French monoplane fighter designed and built by Société des Avions Michel Wibault. Variants were operated by the French and Polish military and built under licence for Chile as the Vickers Wibault.

Development

Developed from the earlier Wib.3 the Wibault 7 was a C.I category single-seat high-wing braced parasol monoplane fighter powered by a 480lk=onNaNlk=on Gnome-Rhone 9Ad radial engine. The main difference from earlier aircraft was the use of an all-metal construction system which was patented by Wibault. The first prototype flew in 1924, and was followed by two more prototypes. Despite being placed only third in the competition (behind the Nieuport-Delage NiD 42 and the Gourdou-Leseurre GL.32), an order for 25 Wib.7s was placed in January 1927. These were followed in production by 60 aircraft for the Aéronautique Militaire as the Wib.72 which entered service in 1929. 26 Wib.7s were built for Chile under licence by Vickers in England.

Plans to sell the aircraft to Poland did not come about, but the PZL company bought a licence and manufactured 25 aircraft with Bristol Jupiter engines, designated in Poland as Wibault 70C1, to the Polish military.^[1] One or two of them were fitted with Wright Cyclone engine.^[1] The next variant was the Wib.73, with seven built for Paraguay. The French Navy bought some carrier-capable Wib.74s with a strengthened fuselage and arrestor hook.

Variants

Wib.7

Prototype powered by a 480 hp (358 kW) Gnome-Rhone 9Ad radial engine. Two further prototypes followed by 25 production aircraft.

Wib.71Re-engined with a 4000NaN0 Hispano 12 Jb engine but redesignated Wib.9 before completion.

Strengthened production aircraft for French Air Force and Poland. 85 built.

Wib.73

Production aircraft for Poland and Paraguay powered by 336kW Lorraine-Dietrich 12Eb W engine. 11 built .

Wib.74

Production navalised aircraft for the French Navy. 18 built.

Vickers Wibault Scout

Licensed production with a Bristol Jupiter engine for Chile, 26 built.

Wibault 70C1

Licensed production with a Bristol Jupiter engine for Poland, 25 built by PZL^[1]

Operators

Chilean Air Force

Paraguayan Air Force received 7 Wib.73s. Three remained in service at the outbreak of the Chaco War between Paraguay and Bolivia.

Polish Air Force

References

Bibliography

Angelucci, Enzo. The Rand McNally Encyclopedia of Military Aircraft, 1914-1980. San Diego, California: The Military Press, 1983. .
Bruner. Georges. Fighters a la Francaise, Part One. Air Enthusiast . 1977. 3 . 85–95 . 0143-5450.
Cortet. Pierre. Courrier Lecteurs. Avions: Toute l'aéronautique et son histoire . December 1996 . 45 . 2 . Readers Mail . French . 1243-8650.
Cortet. Pierre. Courrier Lecteurs. Avions: Toute l'aéronautique et son histoire . February 1997 . 42 . 2–3 . French . 1243-8650.
Cortet . Pierre . Le Wibault 7 et ses dérivés (1^e partie) . Avions: Toute l'aéronautique et son histoire . February 1996 . 35 . 7–13 . The Wibault 7 and its Derivatives . French . 1243-8650.
Cortet . Pierre . Le Wibault 7 et ses dérivés (2^e partie) . Avions: Toute l'aéronautique et son histoire . March 1996 . 36 . 17–21 . French . 1243-8650.
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Green, William and Gordon Swanborough. The Complete Book of Fighters. New York: Smithmark, 1994. .
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Luczak . Wojciech . Les Wibault polonais . Avions: Toute l'aéronautique et son histoire . June 1996 . 39 . 33–34 . The Polish Wilbault 7s . French . 1243-8650.
Morareau . Lucien . Les Wibault 74 de la Marine . Avions: Toute l'aéronautique et son histoire . May 1996 . 38 . 14–19 . The Naval Wibault 7s . French . 1243-8650.
Morgała, Andrzej (2003). Samoloty wojskowe w Polsce 1924–1939 [Military aircraft in Poland 1924–1939], Warsaw: Bellona.
Sapienza. Antonio Luis . Les Wibault 73 C.1 paraguayens et brésiliens. Avions: Toute l'aéronautique et son histoire . July 1996 . 40 . 15–18. Paraguayan and Brazilian Wibault 73 C.1s. French . 1243-8650.
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Notes and References

Morgała, Andrzej (2003), p. 29-31