Polikarpov U-2/Po-2 Part 1 1. Po-2. Unit: Airclub, GST. Serial: DM-WCR. Dresden, 1959. 2. Po-2. Serial: 9. Aircraft of one of the Northern Korean aeroclubs, 1949. 3. U-2. Unit: THK. THK (Turkish Air league) was founded in 1925. Its first name was TTC (Turk Tayyare Cemiyeti = Turkish Airplane Society). The first plane they bought was Polikarpov U-2. Two of them remained in service until 1945. 4. Po-2. Unit: VSJ. Serial: 0012. 5. Po-2. Serial: 14 (red) 6. U-2, VU-3, captured machine, used by the Finnish Army 1941.