1960: The first flight of the Sikorsky S-61L helicopter is made in the United States. It serves as a transport craft as well as patrol, rescue, and even anti-submarine duty.
1966: The West German Luftwaffe grounds its fleet of F-104s to investigate continuing accidents with the type.
1975: The first airmail flight by a supersonic aircraft is made by the Tupolev Tu-144, carrying mail between Moscow and Alma Ata, within the U.S.S.R.