Launch, orbit & landing data:
| Launch vehicle | X-15-3 Flight Nº: 44 |
| Launch date - time | 29 June 1965 - 18:21 UTC (from B-52) |
| Launch site | Delamar Dry Lake |
| Airplane carier | B-52 |
| X-15 ID | 3-44-67 |
| Mass (kg) | kg |
| Mission | Crewed suborbital test flight |
| Pilot | Joe Engle |
| Suborbital flight: | |
| High Apogee | 85.526 km |
| Max Speed | 5.522 km/h |
| Landing date - time | 29 June 1965 - 18:32 UTC |
| Landing location | |
| Flight duration | 10m 32s |
Engle before X-15. Photo credit: NASA