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Nitric acid/JP-X
Nitric acid/JP-X propellant. The addition of approximately 40 per cent of UDMH to JP-4 resulted in a formulation (JP-X) which solved both the combustion and the ignition difficulties experienced with WFNA/ JP-4 and IRFNA/JP-4.

Specific impulse: 315 s. Specific impulse sea level: 269 s.

Optimum Oxidizer to Fuel Ratio: 4.13. Temperature of Combustion: 3,205 deg K. Density: 1.33 g/cc. Oxidizer Density: 1.510 g/cc. Oxidizer Freezing Point: -42 deg C. Oxidizer Boiling Point: 86 deg C. Fuel Density: 0.900 g/cc.

Subtopics
AJ10-28 Aerojet Nitric acid/JP-X rocket engine. SNORT Sled. Development begun early 1950s. 35,000 lbf thrust, 2-10 second duration. JP-X was a jet fuel / hydrazine mixture.
Engines: AJ10-28.
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