S84-33898 (21 May 1984) --- Astronaut Jon A. McBride, 41-G pilot, assists his crewmate, Astronaut Kathryn D. Sullivan with the glove portion of her extravehicular mobility unit (EMU) prior to Dr. Sullivan's underwater session in the Johnson Space Center's weightless environment training facility (WET-F). Mission specialists Sullivan and David C. Leestma are scheduled for extravehicular activity (EVA) on the Columbia for NASA's 17th scheduled flight.

S84-28206 (26 Feb 1984) --- Astronauts Richard M. (Mike) Mullane (with striped suit and PLSS) and Steven A. Hawley participate in and underwater simulation of a 41-D contingency extravehicular activity (EVA) in the Johnson Space Center's weightless environment training facility (WET-F). All Shuttle crews, many of which are not scheduled for definite EVAs, possess team members trained to perform in space certain tasks normally done remotely in the event of systems failures. Among those contingent tasks is the manual closing of the payload bay doors. Mullane and Hawley are two of three mission specialists assigned duty on the seven-day 41-D flight. This photograph was taken by Otis Imboden.

S84-36900 (29 June 1984) ---Astronauts Robert L. Crippen (right) and Jon A. McBride, crew commander and pilot, respectively, for NASA's 41-G Space Shuttle mission, don self contained underwater breathing apparatus (SCUBA) gear prior to their underwater to observe a simulation of an extravehicular activity (EVA) to be performed on their mission. Astronauts Kathryn D. Sullivan and David C. Leestma, two of three mission specialists on the seven-member crew, are scheduled for the EVA. The underwater training took place in the Johnson Space Center's weightless environment training facility (WET-F).

S84-36898 (29 June 1984) --- Astronauts Robert L. Crippen (left) and Jon A. McBride, crew commander and pilot, respectively for NASA's 41-G Space Shuttle mission, await the delivery of self contained underwater breathing apparatus (SCUBA) gear prior to their going underwater to observe a simulation of an extravehicular activity (EVA) scheduled for their mission. The EVA will be performed by Astronauts Kathryn D. Sullivan and David C. Leestma, two of three mission specialists named for the seven-member crew. The underwater training took place in the Johnson Space Center's weightless environment training facility (WET-F).