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He said the second-stage engine will be 17% to 18% more efficient than the engine of its predecessor, the G4 aircraft.
“The aircraft that’s known as Item 30 at present and that has a second-stage engine is supposed to make its maiden flight in 2017,” Massalov said. “The efficiency of the new engine is 17% to 18% higher than that of the first-stage engine.”
In particular, the new engine consumes notably less fuel.
The maiden flight of fifth-generation jet fitted out with the first-stage jet took place in 2010, Mikhail Pogossian, the chief designer of the corporation said last summer. The supplies contract for those aircraft is expected to be signed in 2015.