Potez 25 Suisse 855

History of the Swiss Potez 25:
The Swiss Air Force used three different types of Potez 25. Firstly, in 1927,  six Potez 25.28 A2s were delivered. Registered 851, 852, 853, 854, and 859, 860, these aircraft were powered by a 420 hp Gnome & Rhône Jupiter 9ab radial engine. They remained in service until 1940.

At the same time, Switzerland also acquired four Potez 25.29 A2s, fitted with a Hispano-Suiza 12 GB 500 hp W engine, but "with a Lorraine style cowling". These aircraft were registered 855 to 858. Another of the same type, registered 863, was acquired in 1931. On these aircraft, the original 2m2 tailplanes were replaced by the 2.44 m2 variant. Like their G&R stablemates, the Swiss Potez 25 Hispano served until 1940.

Finally, a series of six Jupiter-powered Potez 25s was acquired in 1931, but this time they were equipped with 460hp Cosmos Bristol 9 Abx Jupiter VIs, built under licence by Saurer in Switzerland (which gave them a slightly longer nose than the aircraft in the first series). From the outset, they were equipped with the large 2.44 m2 vertical stabilizer. Registered 861, 862, 864 to 867, they were withdrawn from service in 1940.

Some aircraft were fitted with skis in winter (see photo in building notice, page F2).