ClF3/Hydyne
Propellant
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ClF3/Hydyne propellant. No engines reached the operational stage using this propellant combination; chlorine trifluoride had better performance using hydrazine fuel. Hydyne was a propellant blend pushed rather vigorously by the Redstone arsenal in the late 1950's, but it found little application.
Optimum Oxidizer to Fuel Ratio: 2.98. Temperature of Combustion: 3,710 deg K. Density: 1.43 g/cc. Oxidizer Density: 1.830 g/cc. Oxidizer Freezing Point: -76 deg C. Oxidizer Boiling Point: 12 deg C. Fuel Density: 0.860 g/cc. Fuel Freezing Point: -84 deg C. Fuel Boiling Point: 64 deg C.