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3. Concorde, notably: Abbr

Alternative clues for the word sst

• Mach 1 breaker, once
• JFK flier
• Scrapped Boeing project, briefly
• Bygone air inits.
• Flightless bird, nowadays?
• Ex-ocean crosser
• Onetime fleet member
• Former flier, briefly
• Grounded plane: Abbr
• Letters denoting speedy jet