3 decal variants:
1. Doflug Do 3802, J-401, 1st Prototype, 1944
2. Doflug Do 3802, J-403, Dübendorf Airfield
3. Doflug Do 3802, J-414, UeG St. 17, 1950
This was decided in the spring of 1940, when Germany invaded Denmark, Norway, Belgium, the Netherlands and Luxembourg, despite the declared neutrality of these countries. This in the middle of the 20th century, Switzerland was also interested, and believed that the improvement of the aircraft fleet would be enough every 10-12 years. As a result of this policy, the Swiss Air Force in 1938, as the main fighter aircraft already obsolete Dewoitine D-27, manufactured under license EADS EFW. The mountainous territories of Switzerland were indeed very difficult territories for a possible attack, but the basic element of effective defense was to maintain air superiority.