Table 2.7. Space Shuttle Sonic Boom Generation Launch and Recovery Accident. Several incidents can contribute to accidental injury and/or fatality during SPS launch and recovery operations. These include fire or explosion on the launch pad, launch abort, and landing accidents. Reference 2.8.2 presents a preliminary analysis that indicates the explosive potential of the HLLV to be about twice as much as the potential of a Saturn V. The peak side-on overpressure (PSOP) contour of 2760 N/m (0.4 psi) must be cleared of all personnel when explosion danger exists. For the Saturn V this contour extends to 2590 m and for the HLLV to 4267 m. The analysis concludes that for a launch from Pad A of Launch Complex 39 at Cape Canaveral, the nearest city, Titusville, would experience a PSOP of 1930 N/m (0.28 psi) during a catastrophic explosion of the HLLV. This would not result in structural failure but could blow out windows and doors, thus causing injury. Flight Phase Distance km Overpressure N/m^ Ascenta Shock wave first reaches ocean 60 290 Lateral cutoff^ 59 85 Downrange 85 48 Focal zonec Center 1440 Lateral cutoff^ 480 Booster Reentry3 280-370 96-144 Orbiter Reentry^ >650 <24 185 48 <44 101 max
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