PORTRAYS STORY OF THE ARNOLD CENTER WHERE MAN SEEKS TO UNDERSTAND AND TO RESOLVE PROBLEMS OF SPACE FLIGHT. PICTURES GIANT NETWORK OF WIND TUNNELS AND HIGH ALTITUDE ROCKET TEST CELLS WHERE MISSILES AND SPACECRAFT ARE SUBJECTED TO CONDITIONS THEY MUST ENDURE IN ACTUAL SPACE FLIGHT. SHOWS HOW DATA COLLECTED FROM SIMULATED FLIGHT CONDITIONS SAVES TIME IN OUR NATION'S AEROSPACE PROGRESS.