test flight                 date         speed        altitude               crew     duration                         comment
0                 taxi test 1   february 15 , 1977  mph (km / h)            taxi               none         taxi   concrete runway , tailcone on
1                 taxi test 2   february 15 , 1977  mph (km / h)            taxi               none         taxi   concrete runway , tailcone on
2                 taxi test 3   february 15 , 1977  mph (km / h)            taxi               none         taxi   concrete runway , tailcone on
3    captive - inert flight 1   february 18 , 1977  mph (km / h)  16000ft 4877 m               none    2 h 5 min   tailcone on , landed with 747
4    captive - inert flight 2   february 22 , 1977  mph (km / h)  22600ft 6888 m               none   3 h 13 min   tailcone on , landed with 747
5    captive - inert flight 3   february 25 , 1977  mph (km / h)  26600ft 8108 m               none   2 h 28 min   tailcone on , landed with 747
6    captive - inert flight 4   february 28 , 1977  mph (km / h)  28565ft 8707 m               none   2 h 11 min   tailcone on , landed with 747
7    captive - inert flight 5       march 2 , 1977  mph (km / h)  30000ft 9144 m               none   1 h 39 min   tailcone on , landed with 747
8   captive - active flight 1       june 18 , 1977  mph (km / h)  14970ft 4563 m  haise , fullerton  55 min 46 s   tailcone on , landed with 747
9   captive - active flight 2       june 28 , 1977  mph (km / h)  22030ft 6715 m      engle , truly   62 min 0 s   tailcone on , landed with 747
10  captive - active flight 3       july 26 , 1977  mph (km / h)  30292ft 9233 m  haise , fullerton  59 min 53 s   tailcone on , landed with 747
11              free flight 1     august 12 , 1977  mph (km / h)  24100ft 7346 m  haise , fullerton   5 min 21 s   tailcone on , lakebed landing
12              free flight 2  september 13 , 1977  mph (km / h)  26000ft 7925 m      engle , truly   5 min 28 s   tailcone on , lakebed landing
13              free flight 3  september 23 , 1977  mph (km / h)  24700ft 7529 m  haise , fullerton   5 min 34 s   tailcone on , lakebed landing
14              free flight 4    october 12 , 1977  mph (km / h)  22400ft 6828 m      engle , truly   2 min 34 s  tailcone off , lakebed landing
15              free flight 5    october 26 , 1977  mph (km / h)  19000ft 5791 m  haise , fullerton    2 min 1 s   tailcone off , runway landing

Table as JSON:
{"test flight":{"0":"taxi test 1","1":"taxi test 2","2":"taxi test 3","3":"captive - inert flight 1","4":"captive - inert flight 2","5":"captive - inert flight 3","6":"captive - inert flight 4","7":"captive - inert flight 5","8":"captive - active flight 1","9":"captive - active flight 2","10":"captive - active flight 3","11":"free flight 1","12":"free flight 2","13":"free flight 3","14":"free flight 4","15":"free flight 5"},"date":{"0":"february 15 , 1977","1":"february 15 , 1977","2":"february 15 , 1977","3":"february 18 , 1977","4":"february 22 , 1977","5":"february 25 , 1977","6":"february 28 , 1977","7":"march 2 , 1977","8":"june 18 , 1977","9":"june 28 , 1977","10":"july 26 , 1977","11":"august 12 , 1977","12":"september 13 , 1977","13":"september 23 , 1977","14":"october 12 , 1977","15":"october 26 , 1977"},"speed":{"0":"mph (km \/ h)","1":"mph (km \/ h)","2":"mph (km \/ h)","3":"mph (km \/ h)","4":"mph (km \/ h)","5":"mph (km \/ h)","6":"mph (km \/ h)","7":"mph (km \/ h)","8":"mph (km \/ h)","9":"mph (km \/ h)","10":"mph (km \/ h)","11":"mph (km \/ h)","12":"mph (km \/ h)","13":"mph (km \/ h)","14":"mph (km \/ h)","15":"mph (km \/ h)"},"altitude":{"0":"taxi","1":"taxi","2":"taxi","3":"16000ft 4877 m","4":"22600ft 6888 m","5":"26600ft 8108 m","6":"28565ft 8707 m","7":"30000ft 9144 m","8":"14970ft 4563 m","9":"22030ft 6715 m","10":"30292ft 9233 m","11":"24100ft 7346 m","12":"26000ft 7925 m","13":"24700ft 7529 m","14":"22400ft 6828 m","15":"19000ft 5791 m"},"crew":{"0":"none","1":"none","2":"none","3":"none","4":"none","5":"none","6":"none","7":"none","8":"haise , fullerton","9":"engle , truly","10":"haise , fullerton","11":"haise , fullerton","12":"engle , truly","13":"haise , fullerton","14":"engle , truly","15":"haise , fullerton"},"duration":{"0":"taxi","1":"taxi","2":"taxi","3":"2 h 5 min","4":"3 h 13 min","5":"2 h 28 min","6":"2 h 11 min","7":"1 h 39 min","8":"55 min 46 s","9":"62 min 0 s","10":"59 min 53 s","11":"5 min 21 s","12":"5 min 28 s","13":"5 min 34 s","14":"2 min 34 s","15":"2 min 1 s"},"comment":{"0":"concrete runway , tailcone on","1":"concrete runway , tailcone on","2":"concrete runway , tailcone on","3":"tailcone on , landed with 747","4":"tailcone on , landed with 747","5":"tailcone on , landed with 747","6":"tailcone on , landed with 747","7":"tailcone on , landed with 747","8":"tailcone on , landed with 747","9":"tailcone on , landed with 747","10":"tailcone on , landed with 747","11":"tailcone on , lakebed landing","12":"tailcone on , lakebed landing","13":"tailcone on , lakebed landing","14":"tailcone off , lakebed landing","15":"tailcone off , runway landing"}}