Bernard 74

Bernard 70 Series
Role Racing and Fighter monoplanes
National origin France
Manufacturer Bernard
First flight 1930 (Bernard 72)
Number built 3

The Bernard 70 was a 1920s design for a French single-seat monoplane fighter aircraft by the Société des Avions Bernard. It was not built but was developed into a racing monoplane designated the Bernard S-72, (later Bernard S-73). It was further developed into single-seat fighters, the Bernard 74 and Bernard 74, although only two of the fighters were built.

Design and development

The Bernard S-72 was a wooden stressed skin constructed cantilever low-wing monoplane powered by a Gnome-Rhône 5Bc[1] radial engine and had a fixed tailskid landing gear.[2] Flown by Paillard the Bernard S-72 participated in the 1930 Coupe Michelin race. On 29 June he took off from Le Bourget, landed successively in Reims, Nancy, Strasbourg, Dijon and Clermont-Ferrand, but unfortunately had to retire near Lyon as a result of engine failure.[1] The S-72 was re-engined with a Gnome-Rhône 7Kb[3] and re-designated the Bernard S-73. The S-73 was then developed into the Bernard 74 single-seat fighter and retained the Titan-Major engine.[2] Two prototypes were built with the first flying in February 1931, powered by a 280 hp (kw) Gnome-Rhône 7Kbs radial engine,[4] the second was fitted with a 268 kW (360 hp) Gnome-Rhône 7Kd engine and first flew in October 1931.[1] The first prototype 74 was re-engined with a Gnome-Rhône 9Kbrs radial engine and re-designated the Bernard 75 it was later used as a pilot-trainer.[2] No further aircraft were built.


Bernard 70
Unbuilt design for a single-seat fighter.[2]
Bernard S-72
Single-seater racing monoplane powered by a 179 kW (240 hp) Gnome-Rhône 5Bc radial engine, first flight in May 1930. Later converted to the Bernard S-73.[1][2]
Bernard S-73[3]
The Bernard 72 re-engined with a 224 kW (300 hp) Gnome-Rhône 7Kb radial engine, first flown in May 1930.[2][3]
Bernard 74-01
Single-seat fighter variant, powered by a 209 kW (280 hp) Gnome-Rhône 7Kbs radial engine, later converted to the Bernard 75.[2][4]
Bernard 74-02
A second prototype powered by a 268 kW (360 hp) Gnome-Rhône 7Kd, first flown on 21 October 1931[1]
Bernard 75
Prototype Bernard 74-01 fighter re-engined with a 373 kW (500 hp) Gnome-Rhône 9Kbrs radial engine and later used as a pilot-trainer.[2][5]

Specifications (Bernard 74.01)

Data from [2][4]

General characteristics
  • Crew: 1
  • Length: 6.72 m (22 ft 1 in)
  • Wingspan: 9.20 m (30 ft 2 in)
  • Height: 2.50 m (8 ft 2 in)
  • Wing area: 13.45 m2 (144.8 sq ft)
  • Empty weight: 825 kg (1,819 lb)
  • Max takeoff weight: 1,106 kg (2,438 lb)
  • Powerplant: 1 × Gnome-Rhône 7Kbs radial piston engine, 209 kW (280 hp)
  • Propellers: 2-bladed


  • Maximum speed: 310 km/h (193 mph; 167 kn)
  • Service ceiling: 8,000 m (26,247 ft)




External links

  • [1] Bernard S-72
  • [2] Bernard S-73
  • [3] Bernard 74-01
  • [4] Bernard 74-02
  • [5] Bernard 75
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.