first supersonic flight
7
triples
GPTKB property
Random triples
| Subject | Object |
|---|---|
| gptkb:Bell_X-1_A | gptkb:1956 |
| gptkb:Bell_X-1 | October 14, 1947 |
| gptkb:X-1_aircraft | October 14, 1947 |
| gptkb:X-1_A | October 14, 1947 |
| gptkb:Tupolev_Tu-144 | gptkb:1970 |
| gptkb:X-15_rocket_plane | 1960-09-17 |
| gptkb:The_Concord | October 1, 1969 |