flight testing duration
4
triples
GPTKB property
Random triples
| Subject | Object |
|---|---|
| gptkb:X-51_Waverider | over 6 minutes. |
| gptkb:Bell_X-14 | 14 years. |
| gptkb:Bell_X-22 | several years |
| gptkb:New_Shepard | years of development |