1949 Bumper 5 February 24, 1949 White Sands Pad 33 403 km (250 mi) Successful flight. Separation of stages at 35 km (22 mi). Bumper 6 April 21, 1949 White Sands Pad 33 49.9 km (31.0 mi) Premature V-2 cut-off; WAC stage failed to fire.