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3. Retired fast plane: Abbr

Alternative clues for the word sst

• Old fast plane: Abbr
• Flight has-been, briefly
• It doesn't fly anymore
• JFK arrival until 2003
• Old jet-set jet
• Former fast flyer
• Grounded craft
• Once-and-future Mach 2 flier
• Fast but expensive transport
• Newsworthy jet