Following several multi-engine transport aircraft, the Caudron company built a single-engine machine: the Caudron C.91. This six-seater, two-bay biplane was initially equipped with a twelve-cylinder Renault 12F engine producing 300 horsepower.
Design and Passenger Comfort
Four passengers were accommodated in a comfortable, enclosed cabin, designed for pleasant air travel. Behind the passenger compartment, there was a baggage hold capable of carrying up to 100 kilograms of cargo, a notable feature for its time.
Operational History and Awards
The sole example of this “air limousine” (registration F-ESAJ) was completed in 1924. The following year, the C.91 secured one of the prizes at the Zenith Aviation Cup competition, showcasing its performance. In the same year, its Renault engine was replaced with a more powerful twelve-cylinder V-type Lorraine 12D engine, delivering 370 horsepower.
Technical Specifications
| Modification | C.91 |
| Wing area, m2 | 65.00 |
| Maximum takeoff weight | 2510 kg |
| Engine type | 1 Piston engine Renault 12F |
| Power, hp | 1 x 300 |
| Maximum speed, km/h | 166 |
| Cruising speed, km/h | 135 |
| Crew | 2 crew |
| Payload | up to 4 passengers |
Image and diagram gallery of the Caudron C.91
 C.91 |
 C.91 |