| Answer | Crossword Clue |
|---|---|
| SSTS | Former source of sonic booms |
| SSTS | Former source of airborne booms |
| MACH | Number of sonic booms |
| SST | Sonic boom source |
| Answer | Crossword Clue |
|---|---|
| SSTS | Former source of sonic booms |
| SSTS | Former source of airborne booms |
| MACH | Number of sonic booms |
| SST | Sonic boom source |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.