 Operation High Jump : A series of time @-@ to @-@ altitude records was set in early 1962 : 34 @.@ 523 seconds to 3 @,@ 000 meters ( 9 @,@ 840 ft ) , 48 @.@ 787 seconds to 6 @,@ 000 meters ( 19 @,@ 700 ft ) , 61 @.@ 629 seconds to 9 @,@ 000 meters ( 29 @,@ 500 ft ) , 77 @.@ 156 seconds to 12 @,@ 000 meters ( 39 @,@ 400 ft ) , 114 @.@ 548 seconds to 15 @,@ 000 meters ( 49 @,@ 200 ft ) , 178 @.@ 5 seconds to 20 @,@ 000 meters ( 65 @,@ 600 ft ) , 230 @.@ 44 seconds to 25 @,@ 000 metres ( 82 @,@ 000 ft ) , and 371 @.@ 43 seconds to 30 @,@ 000 metres ( 98 @,@ 400 ft ) . 
