| Answer | Crossword Clue |
|---|---|
| CHUCKYEAGER | First sound-barrier breaker |
| SST | Sound barrier breaker |
| YEAGER | 1947 sound-barrier breaker |
| YEAGER | Sound barrier breaker Chuck |
| SST | Frequent sound barrier breaker |
| SST | Sound barrier breaker: Abbr. |
| SST | Sound-barrier breaker of yore |
| SST | Sound barrier breaker, for short |
| YEAGER | First speed-of-sound breaker |
| COCHRAN | First aviatrix to break the sound barrier Jacqueline .. |
| WHIP | First object made by humans to break the sound barrier |
