Random triples
| Subject | Object |
|---|---|
| gptkb:NASA's_X-48 | several years |
| gptkb:Gloster_E.28 | 1 hour 30 minutes |
| gptkb:Ingenuity | up to 90 seconds |
| gptkb:Dream_Chaser | approximately 30 minutes |
| gptkb:X-59_Que_SST | up to 3 hours |
| gptkb:Northrop_N-9_M_Flying_Wing | several years |