A combined analytical and experimental investigation of the effect of stagnation region chemicalionization non-equilibrium phenomena on the aerothermodynamic and electrical properties of the flow field over a hemisphere cylinder at hypersonic speeds was conducted. In the analytical studies, flow field caluclations were made using several IBM 704 computer programs which account for finite reaction rate processes. The experimental phases of the study were done in the Cornell Aeronautical Laboratory 6' Shock Tunnel at a nominally constant velocity of 15,500 ft/sec. Measurements were made of the surface pressure and heat transfer, shock layer pitot pressure, and suface layer electrical conductivity on hemishpere cylinder models for a range of values of the stagnation region non-equilibrium scaling parameter. (Author).

The values used by a number of investigators for the rate constants of high-temperature ([greater than or equal to]1000©K) homogeneous gaseous reactions involving species of the elements nitrogen, oxygen, carbon, and sodium have been compiled and are presented in tabular form. Included are reactions involving neutral species, charged species, free electrons, some species in excited electronic or vibrational states, and radiative processes.