Kalinin K-9

The Kalinin K-9 was a liaison/sport aircraft designed by Konstantin Alekseevič Kalinin. It had a parasol wing, only one was built in 1932. The prototype was evaluated during some test flights, but development was never carried out. The tests revealed that the K-9 was too large and too heavy in relation to the installed engine, (60 hp Walter NZ 60, 28.219 lb/hp).