Related Clues:

• Grounded jet planes: Abbr.
• Jets that boom
• Speedsters of yore
• Droop-nosed fliers, once
• Former fast planes: Abbr.
• Tu-144 and Concorde, once
• Sleek fliers
• They used to turn down their noses
• Grounded fleet: Abbr.
• Travel options for 30 yrs.
• Former Mach 2 flyers
• Bygone boomers
• Retired fast jets: Abbr.
• Speedy transports, once
• Defunct fleet