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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 .
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Aerozine 50 is a 50:50 mix by weight of hydrazine and unsymmetrical dimethylhydrazine (UDMH), [1] [2] developed in the late 1950s by Aerojet General Corporation as a storable, high-energy, hypergolic fuel for the Titan II ICBM rocket engines.
The propellants used are a hypergolic mixture of Unsymmetrical dimethylhydrazine (UDMH) fuel with Dinitrogen tetroxide (N 2 O 4) oxidizer. The chamber pressure was among the highest considered, being about 26 MPa.
SuperDraco is a hypergolic propellant rocket engine designed and built by SpaceX.It is part of the SpaceX Draco family of rocket engines. A redundant array of eight SuperDraco engines provides fault-tolerant propulsion for use as a launch escape system for the SpaceX Dragon 2, a passenger-carrying space capsule.
The YF-20 is a Chinese liquid-fuel rocket engine burning N 2 O 4 and UDMH in a gas generator cycle. It is a basic engine which when mounted in a four engine module forms the YF-21. ...
It was first used in the Delta-A/Able second stage of the Vanguard rocket, in the AJ10-37 configuration. It was initially fueled by nitric acid and UDMH. [2] An AJ10 engine was first fired in flight during the third Vanguard launch, on 17 March 1958, which successfully placed the Vanguard 1 satellite into orbit.
Its liquid propellant engine uses unsymmetrical dimethylhydrazine (UDMH) fuel and dinitrogen tetroxide (N 2 O 4) oxidizer, two hypergolic propellants that spontaneously ignites on contact with each other. With a success rate of 97.3%—including two failures and one partial failure—the Fregat is among the most reliable upper stages worldwide.