04/30/2014. Remarks by
Johan Visschedijk: "This aircraft had several identities and was the sole example in the C.680 series. It was originally built in 1934 as a
Caudron C.530 Rafale under the c/n 6933.4. In 1936 the fuselage was used to built the C.680, fitted with new wings with span reduced to by (1.50 m) and wing area reduced by 25% (32.29 sq.ft, 3 sq.m). Its length was reduced by 1 ft 4.9 in (0.43 m), while it retained the 140 hp Renault 4Pei Bengali four-cylinder air-cooled inverted in-line engine of the C.530. On July 2, 1936, the C.680 was registered to SA des Avions Caudron.
Subsequently the aircraft was re-engined with an 170 hp Renault 6Pfi six-cylinder air-cooled inverted in-line engine and redesignated C.684. Before the year was over, the aircraft was re-engined again, this time a 220 hp Renault 6Q was fitted, and the aircraft was redesignated C.685 Super Rafale. Reportedly the aircraft was modified once again and the final designation became C.686. The following data relate to the C.684."
