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3. Speedy airplane

Alternative clues for the word sst

• Historic barrier breaker, for short
• It began commercial service in '76
• Atlantic crosser of old
• Craft with delta wings
• Former fast flier, for short
• Droop-nosed flier: Abbr.
• 747 alternative, once
• Fleet craft: Abbr
• Former jet to JFK
• Descriptive aircraft letters