Spain. Barcala-Cierva-Díaz BCD-3
The Barcala-Cierva-Díaz BCD-3 was a prototype of a trimotor of bombardment that was presented to the contest of the Spanish military aviation of 1919. The trimotor was the final degree project of Juan de la Cierva, an engineer interested in aeronautics. Barcala and Diaz were La Cierva's companions, and the aircraft was built in the workshop of Diaz's father, who was a carpenter.
The BCD-3 performed well on its first two flights, but crashed when tested by Captain Julio Ríos Agüeso, who had no experience with large aircraft. The pilot made a low speed turn and the big plane went into stall. Rios survived unharmed, but La Cierva didn't try to rebuild the plane, and went on to study safe flight at low speed. Years later he invented the gyroplane, predecessor of the helicopter.
The colors of the prototype are based on later inventions by La Cierva, since there aren't any color pictures of the BCD-3 (a few in black and white, and only two of good quality). The military version has the colors and markings of real planes that flew in the Moroccan War.