Tupolev ANT-35  The Tupolev ANT-35 was a 1930s Soviet twin-engined light transport monoplane that entered service with Aeroflot in 1937 as the Tupolev PS-35. First flown on the 20 August 1936, the ANT-35 was a twin-engined all-metal low-wing monoplane with conventional landing gear with retractable mainwheels. The prototype was powered by two 597 kW (800 hp) Gnome-Rhone 14K radial engines which were later replaced with Tumansky M-85 engines, which were Gnome-Rhone 14K's built under license. An improved version, the ANT-35bis, was powered by two 746 kW (1,000 hp) Shvetsov M-62IR engines. The type entered service with Aeroflot from 1937 and later served as liaison and VIP transport aircraft after June 1941.