KVTK (rocket stage) GudangMovies21 Rebahinxxi LK21

      The KVTK (Russian: Кислородно-Водородный Тяжёлого Класса, romanized: Kislorodno-Vodorodnyy Tyazhologo Klassa, lit. 'Oxygen-Hydrogen Heavy Class') is a liquid oxygen/hydrogen upper stage for high energy orbits that is currently under development. The KVTK contains an RD-0146D engine and is designed for use on Angara rockets. KVTK would be the first hydrogen-powered upper stage for use on a Russian launch vehicle, although Khrunichev has previously produced a hydrogen-powered upper stage (KVD-1) for the Indian Space Research Organisation's GSLV. KVTK is designed to provide up to five ignitions, allowing for complex orbital maneuvering, and have an on-orbit lifespan of up to nine hours. KVTK would allow an increase in payload to GTO of 20-50% compared to the Angara A5's standard Briz-M upper stage, powered by UDMH and N2O4.


      History


      The KVTK was originally studied as an upper stage for the Energia family of rockets, but in 1987 was superseded by the RCS stage (Retro and Corrections Stage), based loosely on the American S-IVB. In 1996, consideration was briefly given to constructing a KVTK-derived Russian Propulsion Module for the International Space Station. Most likely, this module would have been transported to the ISS by a Space Shuttle.
      On 10 December 2020, Roscosmos signed a 20.6 billion Russian ruble (US$279M as of December 2020) contract with Khrunichev to manufacture KVTK test models and flight test them by December 2025.
      In August 2021, Khrunichev announced that the first flight test of the KVTK is expected to occur in 2027 on an Angara-A5M launch vehicle.


      Variants


      The KVSK (RCAF) would be a smaller cryogenic stage carrying 10,760 kilograms (23,720 lb) of propellant for the proposed Angara A3, while the KVSK-A7 would be a larger stage loaded with 26,500 kilograms (58,400 lb) for the proposed Angara A7.


      References

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    KVTK (rocket stage) - Wikiwand

    KVTK (rocket stage) - Wikiwand

    Solved Q # 3: The upper stage of KVTK (rocket stage) uses a | Chegg.com

    Solved Q # 3: The upper stage of KVTK (rocket stage) uses a | Chegg.com

    Rocket Staging

    Rocket Staging

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Angara-5 rocket with KVTK upper stage

    Multi stage rocket Stock Vector Images - Alamy

    Multi stage rocket Stock Vector Images - Alamy

    Rocket Lab Reveals Secret Engine and "Kick Stage" for the Electron Rocket

    Rocket Lab Reveals Secret Engine and "Kick Stage" for the Electron Rocket

    Rocket Stage Cutaway Royalty-Free Cartoon | CartoonDealer.com #1778894

    Rocket Stage Cutaway Royalty-Free Cartoon | CartoonDealer.com #1778894

    KVTK to give hydrogen power to Angara

    KVTK to give hydrogen power to Angara