The Caudron C.690 was a single-seat training aircraft developed in France in the late 1930s to train fighter pilots to handle high-performance aircraft.

Caudron attempted to attract overseas sales for the aircraft, but this resulted in orders for only two machines - one from Japan, and the other from the USSR.

In the meantime, the first of two prototypes was destroyed in a crash that killed René Paulhan, Caudron's chief test pilot.

Despite this, the Armée de l'Air eventually showed interest in the type, and ordered a batch of a slightly refined design.

Data from Les Caudron-Renault d'Entrainement[1]General characteristics Performance