Blériot-SPAD S.91
| S.91 | |
|---|---|
 |
|
| Role | Fighter |
| Manufacturer | Blériot |
| Designer | André Herbemont |
| First flight | 23 August 1927 |
| Primary user | Spanish Republican Air Force |
| Number built | 3 |
| Developed into | Blériot-SPAD S.510 |
The Blériot-SPAD S.91 was a French light-weight fighter aircraft. It would be later developed into the Blériot-SPAD S.510, the last biplane produced by the French aeronautic industries.
The S.91 was a single-seat single-bay biplane developed towards the end of the 1920s by Blériot in order to meet the requirements of a French government program for a light fighter plane type designated as "Jockey".
The first prototype was flown on 23 August 1927. It featured a wooden fuselage of monocoque construction and metal wings skinned in fabric. This prototype was destroyed in a crash and a second prototype followed. Even after the French government dropped interest in the program seeking a light fighter for the French Air Force, André Herbemont designed a further prototype with an inverted sesquiplane wing configuration.
Despite flight demonstrations in Romania and Greece no orders followed. André Herbemont would use his experience with the S.91 prototypes in order to develop the S.510, another biplane fighter which would go into production and would be later used by the French Air Force.
In 1936 at least one of the surviving S.91 prototypes ended up in the Spanish Republican Air Force.
General characteristics
Performance
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