S72-41855 (15 June 1972) --- Astronaut Robert L. Crippen, Skylab Medical Experiment Altitude Test (SMEAT) commander, simulates the preparation of a Skylab meal. Crippen is a member of a three-man crew who will spend up to 56 days in the Crew Systems Division's 20-foot altitude chamber at the NASA Manned Spacecraft Center (MSC) beginning in mid-July to obtain medical data and evaluate medical experiment equipment for Skylab. The two crew members not shown in this view are astronauts Karol J. Bobko, SMEAT pilot, and Dr. William E. Thornton, SMEAT science pilot. Photo credit: NASA