03/31/2013. Remarks by Johan Visschedijk: "The DIT (Dvuhmestniy Istrebitel Trenirovochniy, two-seat fighter training) example pictured above is a replica.

Polikarpov DIT (Johan Visschedijk Collection)

Only one example of the DIT two-seat version of the Polikarpov I-152 was built in the late 1930s."