ACOUSTIC NOISE IMPACTS RESULT PRIMARILY FROM LAUNCH ACTIVITIES problems will be encountered. An analysis of SPS sonic boom generation will be needed to evaluate the extent of these impacts. Launch and Recovery Accidents. Accidental injury and/or fatality during during SPS launch and recovery operations can occur due to fire or explosion on the launch pad, launch abort, or landing accidents. The explosive potential of the HLLV is about twice that of a Saturn V. A catastrophic explosion during HLLV launch from Pad A of Launch Complex 39 at Cape Canaveral could cause Titusville, the nearest city, to experience an overpressure that would not result in structural failure but might cause injury by blowing out windows and doors. No analysis has been done on SPS launch abort or recovery landing accidents. These incidents are analogous to conventional aircraft accidents and, in the case of launch abort, would occur over controlled range areas and thus present no unusual problems. An evaluation of accident probability would be required to estimate SPS effects.
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