Editing Lockheed L-1011 TriStar (section)

===L-1011-1===
[[File:Thai Sky Airlines L-1011-1 HS-AXA HKG 2005-3-20.png|thumb|A [[Thai Sky Airlines]] L-1011-1 at [[Hong Kong International Airport]] in 2005]]

The L-1011-1 (FAA certification L-1011-385-1) was the first production model of the L-1011, designed for short- and medium-range flights. This variant served as the basis for subsequent variants. This type was purchased by Air Canada, ANA, Cathay Pacific, Eastern, and other operators with regional trunk routes requiring a widebody aircraft. Pacific Southwest Airlines purchased two L-1011-1 models with lower deck seating.<ref>{{cite web |url= http://www.usairways.com/en-US/aboutus/pressroom/history/psa.html |title= US Airways History |publisher =US Airways |access-date= July 16, 2011}}</ref> This variant was also one of the few widebodies to have the option for a full-height built-in [[airstair]].<ref name=David_Encyclo/>

The L-1011-1 was first delivered to Eastern Air Lines on April 5, 1972. A total of 160 L-1011-1 TriStars were built before production ended in 1983, although the majority of these, 119 or 75% of the total, were completed during a four-year period from 1972 to 1975. Most sales of the L-1011-1 were to US operators, with just three airlines, Delta, Eastern, and TWA, taking delivery of 110 combined. A further two aircraft were placed with a fourth US airline, Pacific Southwest Airlines.<ref name=David_Encyclo/>