Crew Training - STS-41D - JSC

S84-28204 (26 Feb 1984) --- Astronaut Richard M. (Mike) Mullane, one of three 41-D mission specialists, is almost ready for submerging in the 25 ft. deep facility used to simulate space tasks on earth. Moments later, the 41-D crewmember was floating around a submerged Shuttle mockup simulating a contignency EVA for his seven-day flight. Partially pictured in the background is Astronaut Steven A. Hawley, who would share EVA duties with Mullane in the event an EVA was deemed necessary.