>Only got one hit on OneLook

try the singular form, Juan.

1945 Sat. Even. Post Jan. 18 With no wind and intense cold, taxiing planes leave ice-crystal contrails behind them, just as Fortresses do at 30,000 feet over Germany. 1952 M. Tripp Faith is Windsock White aircraft contrails feathered against azure blue. 1960 People Nov. 9/2 The boffins' name for aeroplane clouds is ‘contrails’. 1965 R. Heinlein Farnham's Freehold No sign.. of man—not a building, a road, a path, no contrails in the sky.