Approach and Landing Tests List of ALT flights List of ALT flights

| Test_flight | Date_ | Speed | Altitude | Crew | Duration | Comment_ |
|---|---|---|---|---|---|---|
| Captive-active flight #3 | July 26, 1977 | mph (km/h) | 30,292ft 9,233 m | Haise , Fullerton | 59min 53 s | Tailcone on, landed with 747 |
| Free flight #1 | August 12, 1977 | mph (km/h) | 24,100ft 7,346 m | Haise , Fullerton | 5min 21 s | Tailcone on, lakebed landing |
| Free flight #2 | September 13, 1977 | mph (km/h) | 26,000ft 7,925 m | Engle , Truly | 5min 28 s | Tailcone on, lakebed landing |
| Free flight #3 | September 23, 1977 | mph (km/h) | 24,700ft 7,529 m | Haise , Fullerton | 5min 34 s | Tailcone on, lakebed landing |
| Free flight #4 | October 12, 1977 | mph (km/h) | 22,400ft 6,828 m | Engle , Truly | 2min 34 s | Tailcone off, lakebed landing |
| Free flight #5 | October 26, 1977 | mph (km/h) | 19,000ft 5,791 m | Haise , Fullerton | 2min 1 s | Tailcone off, runway landing |