On 4th December 1932 Kazimierz Chorzewski made a test flight in RWD-9 aircraft. It was a developed version of a RWD-6 aircraft and it was build out of social contribution for the Challenge International des Avions de Tourisme. A construction of this aircraft was a hybrid of a high wing with one straight engine. RWD-9 aircrafts proved their value in Challenge International des Avions de Tourisme in 1934 where they were place first and second. In 1936 in The Bay of Puck died General Officer Gustaw Orlicz-Dreszer on board of this plane.