Launch, orbit & landing data:
| Launch vehicle | X-15-1 Flight Nº: 79 |
| Launch date - time | 21 Aug 1968 - 16:05 UTC (from B-52) |
| Launch site | Railroad Valley |
| Airplane carier | B-52 |
| X-15 ID | 1-79-139 |
| Mass (kg) | kg |
| Mission | Crewed suborbital test flight |
| Pilot | William Dana |
| Suborbital flight: | |
| High Apogee | 81.533 km |
| Max Speed | 5.540? km/h |
| Landing date - time | 21 Aug 1968 - 17:14 UTC |
| Landing location | |
| Flight duration | 9m 23s |
Dana before X-15. Photo credit: NASA