Russia plans to fly new hypersonic scramjet prototypes in 2019 or 2020
Russia’s Gromov Flight Research Institute (LII) expects its latest GLL-AP-02 hypersonic scramjet test vehicle to fly in “three or four years,” with officials telling Flightglobal that funding constraints and technical issues have slowed progress. LII’s Sergei Pernitsky and Sergei Vasilievich said via a translator at the MAKS air show in Moscow that work on the …