S65-19578 (21 May 1965) --- The Gemini-Titan 4 prime crew, astronauts Edward H. White II (left), pilot, and James A. McDivitt, command pilot, check out the Gemini-4 spacecraft during a wet mock simulation test at Cape Kennedy. The Gemini-4 mission, scheduled no earlier than June 3, 1965, will circle Earth 62 times in four days.