SPRINT 1963 - High acceleration missile proposed for close-in defense against ICBM. NOV 1963 - First firing of 4 slant launched vehicles for materials test-(MTV). 1964 - Modification of ZEUS ground control equipment and construction of launch cells for SPRINT. MAR 1965 - First firing of 2 slant launched vehicles for propulsion test (PTV). NOV 1965 - First firing of SPRINT. MAY 1966 - First test of dual plane pitchover. AUG 1967 - First demonstration of control system with 2nd stage maneuvers. OCT 1967 - First demonstrations of flight to primary and secondary design points. NOV 1967 - First demonstration of maximum maneuver. FEB 1968 - First firing with tactical cell closure. JUL 1968 - First demonstration of control response and endurance with maximum lateral acceleration. FEB 1969 - First firing of 3 rounds instrumented for staging data. 1969 - Firings scheduled to complete the staging experiments, 1970 flight tests of MOD III autopilot and MGS, demonstrate extended range, and flight tests of warhead sections. JUL 1969 - First firing MOD III extended range. NOV 1969 - First firing warhead kit. MAY 1970 - First firing MOD IV configuration. AUG 1970 - Last firing. (Complete program will total 42 SPRINT firings and 6 materials and propulsion test vehicles.)