With fellow exiled engineers Pyotr Gorchakov and Nikolai Nikitin, Kondratyuk submitted a design for a 165-metre (500 ft) high concrete tower supporting a four-bladed propeller with a span of 80 metres (240 ft) and capable of generating up to 12,000 kW. In November 1932, Ordzhonikidze selected this design as the winner and invited the team to meet with him in Moscow before sending them to Kharkiv to finalise the design and supervise its construction. While in Moscow, Kondratyuk had the opportunity to meet Sergei Korolev, then head of the Group for the Study of Reactive Motion (GIRD), the Soviet rocket research group).