It flew in two different engine configurations, neither of which were deemed satisfactory and so the type did not enter series production.

Ailerons were installed only on the upper wing, which also contained an auxiliary gravity fuel tank.

Power was provided by a 300 hp (220 kW) Hispano-Suiza 8Fb HS42 V-8 liquid-cooled engine manufactured in Switzerland under license.

[1][2] The prototype was returned to the manufacturer in April 1926 due to unsatisfactory flight characteristics and performance.

[1] On 23 April 1926, test pilot Max Cartier set a Swiss record of 9,800 metres (32,200 feet) above sea level with the MA-7.