The RD-0216 () and RD-0217 are

liquid Liquid is a state of matter with a definite volume but no fixed shape. Liquids adapt to the shape of their container and are nearly incompressible, maintaining their volume even under pressure. The density of a liquid is usually close to th ...

rocket engine A rocket engine is a reaction engine, producing thrust in accordance with Newton's third law by ejecting reaction mass rearward, usually a high-speed Jet (fluid), jet of high-temperature gas produced by the combustion of rocket propellants stor ...

s, burning N₂O₄ and

UDMH 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 ...

in the oxidizer rich staged combustion cycle. The only difference between the RD-0216 and the RD-0217 is that the latter doesn't have a heat exchanger to heat the pressuring gasses for the tanks. Three RD-0216 and one RD-0217 were used on the first stage of the

UR-100 The UR-100 () was an intercontinental ballistic missile (ICBM) developed and deployed by the Soviet Union from 1966 to 1996. UR () in its designation stood for Universal Rocket (). It was known during the Cold War by the NATO reporting name SS- ...

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 ...

. The engines were manufactured until 1974 and stayed in operational use until 1991. More than 1100 engines were produced. For the UR-100N project, while first stage propulsion was based on the more powerful RD-0233 engine. The second stage used a variation of the RD-0217 called the RD-0235 (

GRAU 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 ...

Index 15D113). It used a vacuum optimized nozzle extension, and thus had an extra 10 seconds of isp and of more thrust. It has a fixed nozzle and relies on the RD-0236 vernier engine for

thrust vectoring Thrust vectoring, also known as thrust vector control (TVC), is the ability of an aircraft, rocket or other vehicle to manipulate the direction of the thrust from its engine(s) or motor(s) to Aircraft flight control system, control the Spacecra ...

. While the engine has been out of production for a while, the UR-100NU and the Rokot 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 ...

use it as of 2015.

References

External links

KbKhA official information on the engine.

KbKhA official information on the engine.
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