Astronaut Henry W. Harsfield, Jr. in suit donning/doffing exercise
Description: Astronaut Henry W. Harsfield, Jr., STS-4 pilot, takes part in a suit donning/doffing exercise aboard a KC-135 "zero-gravity" aircraft. Mission Specialist William F. Fisher, far left, stands ready to assist in the exercise. Hartsfield is wearing an extravehicular mobility unit (EMU) minus gloves and helmet.
