ClO3F/UDMH
Propellant
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ClO3F/UDMH propellant.No engines reached the operational stage using this propellant combination; perchloryl fluoride had better performance using hydrazine fuel. Unsymmetrical Dimethylhydrazine ((CH3)2NNH2) became the storable liquid fuel of choice by the mid-1950's. It is used in virtually all storable liquid rocket engines except for some orbital maneuvering engines in the United States, where MMH has been preferred due to a slightly higher density and performance. No engines reached the operational stage using this propellant combination.
Optimum Oxidizer to Fuel Ratio: 2.67. Temperature of Combustion: 3,595 deg K. Density: 1.17 g/cc. Oxidizer Density: 1.430 g/cc. Oxidizer Freezing Point: -146 deg C. Oxidizer Boiling Point: -47 deg C. Fuel Density: 0.793 g/cc. Fuel Freezing Point: -57 deg C. Fuel Boiling Point: 63 deg C.