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[i]A pressure suit tear poses two potential, difficult rescue situations: (i) a critical drop in suit static pressure, and (2) exhaustion of either or both backpack and emergency oxygen supplies. Even if the EVA crewman is attached to the station oxygen supply by an umbilical, a suit tear could cause a critical and even fatal suit static pressure drop. In this circumstance, the survival time will be a matter of seconds or minutes at best, thus making rescue marginal and escape out of the question.
If the suit tear could be repaired or sealed off, survival could probably be extended. Another possibility is to provide a pressure garment or bag which could be unfolded / deployed quickly around the crewman and sealed. The oxygen escaping from the suit tear would fill the garment and thereby provide a satisfactory static pressure level. An exhaust pressure relief valve then could maintain the static pressure and composition within acceptable limits during the rescue operation.[/i]
[i]A handcart, similar to that used on Apollo 14, should be carried by each lander tug. The handcart should be capable of carrying an incapacitated man either in a pressure suit or a pressurized stretcher.[/i]
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