It is a hypergolic propellant often used in combination with a hydrazine-based rocket fuel.

Challenger's reaction control system then ruptured, resulting in the burning of its hypergolic propellants.

The hypergolic propellants mix and burst instantly into flame, pouring fire out the rocket nozzle.

Although hypergolic propellants tend to be difficult to handle, a hypergolic engine is easy to control and very reliable.

Hypergolic propellants have the advantage of self igniting, reliably and with less chance of hard starts.

Work at Willow Run during 1953 included testing throttlable rocket motors and hypergolic propellants.

Ablestar was a liquid rocket stage burning hypergolic propellants fed from gas-pressurized propellant tanks.

Tsyklon-4 will also improve the fueling system, allowing safe capture of toxic vapors from the Tsyklon's hypergolic propellant.

Antares Three stage rocket: kerosene/oxygen, solid-fuel, and hypergolic propellant (in development)

It provided both automatic and manual rotation and translation by means of 16 vernier thrusters using hypergolic propellants.

Beginning in 1960, the Agena upper-stage, powered by hypergolic propellant, was used extensively on Atlas launch vehicles.

But application of high-boiling hypergolic propellant makes RD-253 more simple, safe and cheap, outweighing the negative aspects of its design.

This was because T-Stoff and C-Stoff are hypergolic propellants: they spontaneously ignite when mixed.

VentureStar's simpler design would have excluded hypergolic propellants and even hydraulics, relying upon only electrical power instead for flight controls, doors and landing gear.

The High Energy Blast Facility performs explosive testing with solid, cryogenic, hypergolic propellants, and other high explosives.

The CPM is designed to maximize simplicity - it uses no turbopumps and no ignition system (because of the hypergolic propellants).

Due to the hypergolic propellants used in the Titan II, the launch lacked the red flame like appearance of a Saturn launch.

Hypergolic propellants (or at least hypergolic ignition) were far less prone to hard starts than electric or pyrotechnic ignition.

The work included regenerative cooling, hypergolic propellant ignition, and fuel injector designs that included swirling and bi-propellant mixing injectors.

WSTF refurbished hypergolic propellant components for the Space Shuttle, handle advanced pyrovalve testing at two laboratory facilities, and perform failure investigations.

Rockets often employ pyrotechnic devices that place flames across the face of the injector plate, or, alternatively, hypergolic propellants that ignite spontaneously on contact with each other.

To accomplish these maneuvers, a propulsion system was developed that used hypergolic propellants and a gimbaled pressure-fed ablative cooled engine that was capable of being throttled.

In common usage, the terms "hypergol" or "hypergolic propellant" are often used to mean the most common such propellant combination, hydrazine plus dinitrogen tetroxide, or their relatives.

Hypergolic propellants were discovered independently, for the third time, in the US by GALCIT and Navy Annapolis researchers in 1940.

The Ukrainian-built Tsyklon rockets were retired in favour of future all-Russian carrier rockets, such as the Angara, and because they were fuelled by toxic hypergolic propellants.