Encyclopedia Astronautica
KEW-4



rdynkew4.jpg
KEW-4
Credit: Boeing / Rocketdyne
Rocketdyne N2O4/MMH rocket engine. 2.216 kN. Kinetic Energy Propulsion (500 Ib thrust). Pressure-fed. ASAT Strap-down test, XSS / DICE Microsatellite, GBI Ground-Based Interceptor, THAAD Theater High Altitude Area Defense. Isp=235s.

Thrust: 2.22 kN (498 lbf).
Specific impulse: 235 s.
First Launch: 1993.

More... - Chronology...


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Associated Propellants
  • N2O4/MMH Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Monomethylhydrazine (CH3NHNH2) is a storable liquid fuel that found favour in the United States for use in orbital spacecraft engines. Its advantages in comparison to UDMH are higher density and slightly higher performance. More...

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