Russian President Vladimir Putin got a sneak peek of a new fifth-generation lightweight single-engine fighter jet at an air show just outside of Moscow on Tuesday.

Russian aircraft makers unveiled a prototype of the stealth fighter dubbed "Checkmate" for the 68-year-old leader at the MAKS-2021 International Aviation and Space Salon in Zhukovsky, ahead of its official unveiling later in the day, according to a statement from Rostec, the state-owned military giant which is responsible for exporting Russian technology.

The head of Rostec, Sergey Chemezov, and the general director of United Aircraft Corporation (UAC), Yury Slyusar, presented the warplane to Putin at the exhibition pavilion of the Sukhoi company.

The fighter prototype is unique and has not been developed before in Russia, according to a presentation by state-owned UAC. A UAC press release said the fighter jet "combines innovative solutions and technologies" and has "low visibility and high flight performance."

The company's head, Slyusar, also touted the aircraft's features on Russian state TV, describing the planes as "unique in their class" and adding that they have "a combat radius of 1,500 kilometers, the largest thrust-to-weight ratio, shortened takeoff and landing, more than seven tons of combat load, which is an absolute record for aircraft of this class."

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