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To counter the extreme heat loads experienced by hypersonic engine structures, it is imperative that fuels double as coolants. However, the use of logistical fuels (e.g., JP-7 and JP-10) in hypersonic applications is becoming more accepted in near-term flight engine test applications. In order for hydrocarbon based fuels to be viable as scramjet fuels they must be able to absorb heat in the form of sensible, latent, and chemical enthalpies, while attempting to minimize coke formation. In this study, we attempt to achieve these ends using a short contact time (SCT) catalytic reactor. This type of reactor has the advantages of short residence times, enhanced wake mixing, and heat conduction into the core flow of the process stream, while minimizing pressure losses. In this investigation, we have performed experiments using a series of different catalysts (Pt- αAl2O3, Pd-αAl2O3, and zeolite) on a set of logistical fuels (JP-7, JP-8, JP-10 and S-8, a synthetic hydrocarbon fuel currently being investigated by the USAF). Experiments were performed at low (1-3 atmospheres) and elevated (40-50 atmospheres) pressures, at temperatures expected in a hypersonic engine heat exchanger. Experiments measured the production of various gas-phase and liquidphase species in the reactors as a function of pressure, temperature, residence time, and catalyst formulation. Results show the production of small (H2, C1 – C3) species in the gas phase, with a shift from hydrogen and ethylene formation at low pressures towards methane and ethane formation at elevated pressures. In addition, experiments have shown significant coke formation at elevated pressures for all of the fuels investigated. Detailed kinetic modeling has identified shortcomings in models used for describing the pyrolysis of these fuels.