hesham said:the Caudron C.53 was a project for two-seat night bomber of 1921,powered by four
260 hp Salmson CM9 engines.
hesham said:the C.550 was a racer monoplane Project,in two versions,first was based on C.500 and the second
was based on C.530.
the C.540 was airplane Project,powered by one 170 hp 6 Pfi engine,maybe a light or racer aircraft,no more details are known.
hesham said:From Le Fana 146,
a clearer view to R-300.