Aircraft Development and Design
In 1928, Caspar Werke AG constructed a training aircraft, which was designated Caspar C.33. It was a two-seat biplane, equipped with a five-cylinder, air-cooled Armstrong-Siddeley Mongoose engine, producing 135 hp.
Market Reception and Fate
The C.33 failed to interest the military. An attempt to sell it to private customers as a sports plane was also unsuccessful. Consequently, the aircraft remained a single prototype.
Technical Specifications
| Modification | C.33 |
| Wingspan, m | 8.00 |
| Length, m | 5.30 |
| Empty weight | 490 |
| Maximum takeoff weight | 750 |
| Engine type | 1 Piston engine Armstrong-Siddeley Mongoose |
| Power, hp | 1 x 135 |
| Maximum speed, km/h | 160 |
| Cruising speed, km/h | 130 |
| Crew, crew members | 2 |
Image gallery of the Caspar C.33
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VANCOUVER: Caspar C.33 [online]. archivoaereo.com; [cited 2026-05-16]. Available at: https://archivoaereo.com/en/caspar-c-33-2/