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Lockheed L-1011 TriStar
The L-1011 TriStar is the three-engine wide-body airliner that Lockheed built at Palmdale, California, with Rolls-Royce RB211 turbofans: one under each wing and one in the tail. The prototype first flew on November 16, 1970, and Eastern Air Lines began scheduled service on April 26, 1972. Lockheed built 250 in all, from the original L-1011-1 to the shortened, long-range L-1011-500, and left the airliner business when production ended. Delta Air Lines, the largest operator, flew its last TriStar service on July 31, 2001.
The variants side by side
| Variant | Range | Seats | Length | First flight | Status |
|---|---|---|---|---|---|
| Lockheed L-1011-1 TriStar | – | About 250 in two classes (up to 400) | 177 ft 9 in (54.17 m) | November 16, 1970 | Retired in 2001 |
| Lockheed L-1011-500 TriStar | 6,150 miles (5,345 nm, 9,900 km) | – | 164 ft 2 in (50.05 m) | October 1978 | Retired in 2001 |