Militär-Apparat MA-7

The Militär-Apparat MA-7 was a prototype fighter designed by August Häfeli in Switzerland.

Design and development
Designed in response to a Swiss Air Force requirement for an indigenous fighter design, the MA-7 was a biplane of fabric-covered wood construction with N-shaped wing struts like the Fokker D.VI of 1918. The aircraft was built in 1925 and handed over for trials in February 1926.

The prototype was returned to the manufacturer in 1926 due to unsatisfactory flight characteristics and performance. The manufacturer responded with the installation of a 400 hp LFW-12 X-1 engine. This engine, however, was too large and heavy for the frame and entire MA-7 project was subsequently discontinued.

Records
In April 1925, test pilot Max Cartier set a Swiss record of 9800 m above sea level with the MA-7.

Operators

 * Swiss Air Force
 * Swiss Air Force