BIPLANE
Set to 4 different clues across 4 published puzzles, most often “Red Baron's transport” — The New York Times, Friday, 16 January 2004.
7 letters
Every clue on record, most used first
- Red Baron's transportonce
The New York Times — Friday, 16 January 2004
- Many a crop- dusteronce
The New York Times — Monday, 5 February 2001
- Wright brothers' craft, e.g.once
The New York Times — Sunday, 23 April 2000
- Many a crop-dusteronce
The New York Times — Friday, 25 February 2000