The THK 11 was a 1940s prototype Turkish four-seat monoplane, designed by Stanisà Âaw Rogalski and built by (THK - Turkish Aeronautical Association).
The THK-11 was a high-wing twin-boom cantilever cabin monoplane with a de Havilland Gipsy Major piston engine driving a pusher propeller. It has a fixed nose-wheel landing gear and was first flown in 1947.