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L-1011 Design Data

Lockheed L-1011 TriStar 500 - General

The L-1011-500 TriStar was a three-engine widebody aircraft. Announced in November 1975, this model first flew in 16 October 1978. It was designed by Lockheed as a true long-range aircraft with a shortened fuselage with less 4.1 m in comparison with standard TriStars. A larger wingspan and active ailerons provided a higher MTOW. Other design changes included more powerful Rolls-Royce engines (50,000 lbs), a noise-reducing Frisbee fairing (named after the Lockheed engineer Lloyd Frisbee) below the center engine intake, shorter wing-to-fuselage fairings, digital autopilot and the FMS. The retractable tailskid installed on previous versions was removed since the fuselage length is shorter. The L-1011-500 didn't have the lower galley - to allow for more cargo space - and the front cargo door also was redesigned to be larger. Only fifty L-1011-500 were built until the end of production, in 1983. Follow the link for detailed cockpit diagrams.

Lockheed L-1011 TriStar 500 cutaway diagram 🡬

Lockheed L-1011 TriStar 500 - Specifications

Type Certificate holder / Model: Lockheed Martin / L-1011-385-3
Aircraft type designators ICAO / IATA: L101 / L10 + L15
Flight crew: 2 Pilots + 1 Flight Engineer
Maximum passengers capacity: 315
Length: 50.05 m (164 ft 2 in)
Height: 16.87 m (55 ft 5 in)
Wingspan: 50.09 m (164 ft 4 in)
Wing area: 328.96 m (3541 ft)
Wing aspect ratio: 7.63
Wing sweepback: 35
Tailplane span: 21.82 m (71 ft 7 in)
Tailplane area: 119.1 m (1282 ft)
Wheel track: 10.97 m (36 ft)
Wheel base: 18.79 m (61 ft 8 in)
Fuselage diameter: 5.97 m (19 ft 7 in)
Empty weight: 112,091 kg (247,120 lbs)
Maximum payload weight: 41,050 kg (90,500 lbs)
Maximum zero fuel weight: 153,314 kg (338,000 lbs)
Maximum taxi weight: 232,339 kg (512,000 lbs)
Maximum take-off weight: 231,332 kg (510,000 lbs)
Maximum landing weight: 166,922 kg (368,000 lbs)
Fuel capacity (usable): 96,615 kg (213,640 lbs)
Engine type: 3x Rolls-Royce RB211-524B
Engine by-pass ratio: 5:1
Take-off field with maximum load ISA@MSL: 9,400 ft
Typical cruise Mach number: 0.83
Maximum operating Mach number: 0.90
Service ceiling: 43,000 ft
Maximum range: 5,600 nm

page last modified on 2023-04-19

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