| Discomforting noise to hear from an inflatable mattress | 55 |
| Dept. once headed by Gen. Hershey | 33 |
| Concordes, e.g., familiarly | 27 |
| Comment from a snake | 20 |
| Cobra's caution | 19 |
| Cobra's "Watch it!" | 33 |
| Cobra's "careful!" | 32 |
| Certain card issuer: Abbr. | 26 |
| Busy org. of W.W. II | 20 |
| Busy agcy. of W.W. II | 21 |
| Barbecuing sound | 16 |
| Bad sound to hear in rattlesnake country | 40 |
| Bad sound for a hot air balloonist | 34 |
| Bacon-cooking sound | 19 |
| Bacon sound | 11 |
| Awful sound to hear while riding in a hot air balloon | 53 |
| Asp's sound | 15 |
| Air leak sound | 14 |
| Agcy. that draft dodgers want to steer clear of | 47 |
| 60's draft org. | 19 |
| 60's demonstration target | 29 |
| 1960's-70's draft org. | 30 |
| 1960's demonstration target: Abbr. | 38 |
| "Heat's coming on" sound | 38 |
| "Boo-o-o-o-o!" | 24 |
| '60s draft org. | 19 |
| Cozzens novel: 1931 | 19 |
| Medicinal root bark or S.C. mountain | 36 |
| Air hose sound | 14 |
| Deflation indicator | 19 |
| Bacon sizzle | 12 |
| Worrisome sound for a balloonist | 32 |
| What's missing from the theme entries | 41 |
| What a balloonist hates to hear | 31 |
| Sounds from a snake pit? | 24 |
| Sound of a slow leak | 20 |
| Sound from a snake pit | 22 |
| Radiator or kettle sound | 24 |
| Leaky radiator noise | 20 |
| Frightening sound for a balloonist | 34 |
| Asp's sibilance | 19 |
| Unwelcome sound to a driver | 27 |
| Unwelcome boarding-pass marking | 31 |
| Sound of a live wire | 20 |
| Sound from a leaky tire | 23 |
| Slow-leak sound | 15 |
| Scary sound for a balloonist | 28 |
| Not a good sound for a balloonist | 33 |
| Leaking sound | 13 |
| Leak noise | 10 |
| Indication of deflation | 23 |
| Flat tire indicator | 19 |
| Bacon-frying sound | 18 |
| Alarming sound for a hot air balloonist | 39 |
| Exceptional rating | 18 |
| 1973 snake movie starring Dirk Benedict | 39 |
| Waters of the world, figuratively | 33 |
| Visual representation of this puzzle's theme | 48 |
| Snaky 1973 horror flick | 23 |
| Man-becomes-cobra flick of 1973 | 31 |
| 1973 horror flick about a doctor who turns his assistant into a cobra | 69 |
| Sound heard during an escape? | 29 |
| Executives' underlings | 26 |
| Speedy plane, briefly | 21 |
| Concorde | 8 |
| Retired flier | 13 |
| Fast jet | 8 |
| Bygone flier | 12 |
| Grounded flier | 14 |
| Speedy plane | 12 |
| Retired plane | 13 |
| Former JFK lander | 17 |
| TU-144, e.g. | 12 |
| Retired boomer | 14 |
| J.F.K. sight | 12 |
| Mach 1 breaker | 14 |
| J.F.K. visitor | 14 |
| Former flier | 12 |
| Boom producer | 13 |
| Air France flier until '03 | 30 |
| Retired fast plane: Abbr. | 25 |
| Former fast flier | 17 |
| Fast way to the U.K. | 20 |
| Fast jet, for short | 19 |
| Concorde, notably | 17 |
| Atl. crosser | 12 |
| Air France fleet component, once | 32 |
| 747 alternative | 15 |
| Retired speedster | 17 |
| Retired jet | 11 |
| Out-of-service plane | 20 |
| Old JFK arrival | 15 |
| JFK arrival | 11 |
| Grounded jet, for short | 23 |
| Grounded jet | 12 |
| Former JFK arrival | 18 |
| Former Atl. crosser | 19 |
| Fast plane, for short | 21 |
| Superjet | 8 |
| Retired flyer | 13 |