Random triples
| Subject | Object |
|---|---|
| gptkb:X-15_Flight_26 | High-speed test flight |
| gptkb:Space_Ship_Seventeen | manned test flights |
| gptkb:Dream_Chaser | suborbital test flight |
| gptkb:Space_Ship_Two_VSS_Galactic_Girl_8 | suborbital test flights |
| gptkb:Starship_SN20 | high-altitude test |