KVTK (rocket stage)

KVTK
ManufacturerKhrunichev State Research and Production Space Center
Country of originRussia
Used onAngara A5 (upper stage)
General characteristics
Height10.4 meters (34 ft)[1]
Diameter3.8 meters (12 ft)[1]
Gross mass23,530 kilograms (51,870 lb)[1]
Propellant mass19,600 kilograms (43,200 lb)[1]
KVTK
Powered by1 RD-0146D
Maximum thrust68.6 kilonewtons (15,400 lbf)[1]
Specific impulse463 seconds (4.54 km/s)[1]
Burn time1,350 s
PropellantLH2/LOX

The KVTK (Russian: Кислородно-водородный тяжёлого класса, 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.[1] 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 GSLV.[2] 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.[3]

  1. ^ a b c d e f g Cite error: The named reference spaceflight101-angara was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference russianspaceweb-angarakvtk was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference khrunichev-angara was invoked but never defined (see the help page).