The RD-0233 (,

GRAU index The Main Missile and Artillery Directorate of the Ministry of Defense of the Russian Federation (), commonly referred to by its transliterated acronym GRAU (), is a department of the Russian Ministry of Defense. It is subordinate to the Chief of ...

: 15D95) and RD-0234 (GRAU index: 15D96) are

liquid-fueled rocket A liquid-propellant rocket or liquid rocket uses a rocket engine burning liquid rocket propellant, liquid propellants. (Alternate approaches use gaseous or Solid-propellant rocket , solid propellants.) Liquids are desirable propellants because th ...

engines which burn a

hypergolic A hypergolic propellant is a rocket propellant combination used in a rocket engine, whose components spontaneously ignite when they come into contact with each other. The two propellant components usually consist of a fuel and an oxidizer. The ...

mixture of

unsymmetrical dimethylhydrazine Unsymmetrical dimethylhydrazine (abbreviated as UDMH; also known as 1,1-dimethylhydrazine, heptyl or Geptil) is a chemical compound with the formula H2NN(CH3)2 that is primarily used as a rocket propellant. At room temperature, UDMH is a colorle ...

(UDMH) fuel with

dinitrogen tetroxide Dinitrogen tetroxide, commonly referred to as nitrogen tetroxide (NTO), and occasionally (usually among ex-USSR/Russian rocket engineers) as amyl, is the chemical compound N2O4. It is a useful reagent in chemical synthesis. It forms an equilibrium ...

() oxidizer in an oxidizer-rich staged combustion cycle. The only difference between the RD-0233 and the RD-0234 is that the latter has a heat exchanger to heat the pressuring gasses for the tanks. Three RD-0233 and one RD-0234 are used on the first stage of the UR-100UTTKh

ICBM An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...

. While the engine is out of production, the

as well as

Rokot Rokot ( meaning ''Rumble'' or ''Boom''), also transliterated Rockot, was a Soviet Union (later Russian) space launch vehicle that was capable of launching a payload of into a Earth orbit with 63° inclination. It was based on the UR-100N ( ...

and

Strela Strela (, ''arrow'') may refer to: Russian/Soviet technology Anti-aircraft missiles * 9K31 Strela-1, a.k.a. SA-9 Gaskin * 9K32 Strela-2, a.k.a. SA-7 Grail * 9K34 Strela-3, a.k.a. SA-14 Gremlin * 9K35 Strela-10, a.k.a. SA-13 Gopher Other * Strela ...

remain operational as of 2015.

References

External links

KbKhA official information on the engine. ''(Archived)''

Rocket engines of the Soviet Union Rocket engines using hypergolic propellant Rocket engines using the staged combustion cycle KBKhA rocket engines {{rocket-stub

See also

References

External links