American ASTP backup crew suited for testing of Apollo spacecraft

S75-21063 (January 1975) --- The three members of the American ASTP backup crew are suited up for the testing of the Apollo spacecraft at the Kennedy Space Center. They are (from foreground) astronauts Alan L. Bean, commander; Ronald E. Evans, command module pilot; and Jack R. Lousma, docking module pilot. Later, they entered the Apollo Command Module in an altitude chamber for tests of spacecraft systems. The testing was in preparation for the joint U.S.?USSR Apollo-Soyuz Test Project docking mission in Earth orbit scheduled for July 1975.