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Flood Rescue Assist Capsule aids the army in Search & Rescue of FLOOD VICTIMS.Capsule is dropped into flood waters by the first troop of patroling helicopters to mark the location of flood victims.The capsule contains 2 part liquid-polyurethane foam.When capsule impacts the water,it opens up.The 2 liquids mix & within 4 minutes,a block of polyurethane foam i.e. the buoy,expands out of the capsule & floats on the surface anchored by capsule body.Capsule & buoy has sensors to relay location,speed & depth of flood water.Buoy's retro-reflective surface reflects light greatly at night & aids carrier helicopters to locate it & save lives day/night.
National Institute of Design