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

| Test_flight | Date_ | Speed | Altitude | Crew | Duration | Comment_ |
|---|---|---|---|---|---|---|
| Taxi test #1 | February 15, 1977 | mph (km/h) | taxi | none | taxi | Concrete runway, tailcone on |
| Taxi test #2 | February 15, 1977 | mph (km/h) | taxi | none | taxi | Concrete runway, tailcone on |
| Taxi test #3 | February 15, 1977 | mph (km/h) | taxi | none | taxi | Concrete runway, tailcone on |
| Captive-inert flight #1 | February 18, 1977 | mph (km/h) | 16,000ft 4,877 m | none | 2 h 5min | Tailcone on, landed with 747 |
| Captive-inert flight #2 | February 22, 1977 | mph (km/h) | 22,600ft 6,888 m | none | 3 h 13min | Tailcone on, landed with 747 |