Air Force had undoubtedly been included asa part of the Atomic Energy Commission’s program, but he wished to indicate the field of interest of the United States Air Force. The following seven requirements were listed in this memorandum: ae Blast Characteristics Velocity and pressure gradients should be established to determine the full radius of probable damage. Further information should be obtained on characteristics at various levels above the surface. Blast accelerations should be recorded on drone aircraft at the time of detonatione be Height and rate of cloud ascent Complete information should be-ébtained on the cloud development over a period of approximately fifteen minutes. Radioactivity measurements at appropriate intervals should be obtained at various heights by drone aircraft each equipped to take a series of air samples. Geo Incendiary date A plot of heat intensities, velocity and duration of induoed surface winds should be determined. d.» . Radiation data Data should be obtained on direct radiation over effective distances and on contamination due to rain-out. The pattern of surface contamination and the life of lethal radiation should be recorded. e. Effects of precipitation Information on this subject could possibly be attained during the tests. Section VIII 9

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