MOSCOW, May 15. /ITAR-TASS/. Ukrainian aircraft Antonov State Company is blocking the re-motorization of the single-engine Antonov-2 biplane being used in Russia, while the US is not trying to hamper the program, Deputy Chairman of the patriotic military training organization DOSAAF Viktor Chernov told ITAR-TASS on Thursday.
The program is stalled as there are no operation permits for the modernized aircraft, he said.