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L-1049 Super Constellation

Lockheed Corporation · Commercial · United States · Early Jet (1946–1969)

L-1049 Super Constellation — Commercial
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The Lockheed L-1049 Super Constellation was the stretched-fuselage second-generation Constellation — the principal Lockheed long-haul airliner of the 1950s + the most-numerous Constellation variant. Lockheed developed the Super Constellation in 1950-1951 from the L-049 baseline; first flight 13 October 1950. About 579 L-1049 Super Constellations + military variants were built between 1951 and 1958. The aircraft served TWA + Eastern Air Lines + KLM + Air France + ~15 other airlines + U.S. Navy + U.S. Air Force 1951-1971.

The L-1049G (most-numerous variant) used 4 × Wright R-3350-988TC18EA-1 Twin Cyclone Turbo-Compound 18-cylinder radial engines (3,250 hp each). Maximum speed 600 km/h, range 8,700 km, service ceiling 6,900 m. Capacity: 99 passengers + 7 crew (typical 1950s configuration). The Turbo-Compound engines were the most-powerful piston aircraft engines ever built — recovering exhaust energy through 3 turbocharger-coupled power turbines feeding shaft horsepower back to the crankshaft.

Super Constellation service was extensive. TWA's principal transatlantic + transpacific aircraft 1951-1965. U.S. Navy WV-2 + USAF EC-121 Warning Star (over-water reconnaissance + airborne-early-warning variants, ~232 built) served Cold War North Atlantic + Pacific barrier surveillance. About 5 Super Constellation airframes survive airworthy in 2026 — including the iconic "Connie" (HB-RSC) at the Super Constellation Flyers Association (Switzerland).

For Kids — a shorter, friendlier version

The Lockheed L-1049 Super Constellation was a famous passenger plane from the 1950s. It was a stretched version of the older Constellation. That means engineers made the body longer to carry more people. The first flight happened on October 13, 1950.

The Super Constellation could carry up to 99 passengers and 7 crew members. It had four powerful engines called Wright Turbo-Compound engines. Each engine produced 3,250 horsepower. These were the most powerful piston engines ever built for an aircraft. They even recycled exhaust energy to make extra power!

This plane flew for about 15 airlines around the world. Big names like TWA, Eastern Air Lines, KLM, and Air France all used it. TWA flew it across the Atlantic and Pacific oceans. It was the main long-distance airliner of its time. The plane served passengers from 1951 all the way to 1971.

The Super Constellation could fly faster than most cars travel on a highway. Its top speed was about 600 kilometers per hour. It could travel up to 8,700 kilometers on one trip. That is longer than a flight from New York to London and back! About 579 of these planes were built between 1951 and 1958.

The military also loved this plane. The American Navy and Air Force used special versions for scouting missions. The Air Force called their version the EC-121 Warning Star. It helped watch over the ocean from high in the sky.

Fun Facts

  • The Super Constellation's engines were the most powerful piston engines ever put on an aircraft.
  • About 579 Super Constellations were built in just seven years.
  • Each of its four engines produced 3,250 horsepower — like having hundreds of cars in one engine!
  • The plane could fly nearly 8,700 kilometers without stopping, longer than many ocean crossings.
  • Its top speed of 600 kilometers per hour made it faster than most propeller planes of its day.
  • The Super Constellation carried up to 99 passengers, making it a true giant of the 1950s skies.
  • The military version was called the EC-121 Warning Star and was used for ocean scouting.
  • TWA used the Super Constellation as its main plane across both the Atlantic and Pacific oceans.

Kids’ Questions

How big was the Super Constellation?

The Super Constellation was a large plane with a stretched body longer than many school buses lined up end to end. It could hold 99 passengers plus 7 crew members. That is a lot of people flying across oceans together!

What made its engines so special?

The Wright Turbo-Compound engines were the most powerful piston engines ever built for a plane. They had a clever trick — they recycled hot exhaust gases to make even more power. Each of the four engines pushed out 3,250 horsepower.

Did the military use this plane?

Yes! The American Navy and Air Force both flew special versions of the Super Constellation. The Air Force called theirs the EC-121 Warning Star. It was used for scouting over the ocean to keep watch from the sky.

Which airlines flew the Super Constellation?

About 15 airlines around the world used this plane. Famous ones included TWA, Eastern Air Lines, KLM, and Air France. TWA used it as their main plane for long trips across the Atlantic and Pacific oceans.

Variants

L-1049 / L-1049G (commercial)
Standard airliner variant. ~225 built.
WV-2 / EC-121 Warning Star
Airborne early warning variant. ~232 built; covered separately.
L-1649 Starliner
Final extended-range variant. Covered separately.

Notable Operators

TWA + Eastern + KLM + Air France + 15 others (1951-1971)
Principal civil users.
U.S. Navy + USAF (1953-1982)
WV-2 + EC-121 Warning Star surveillance variants.

Frequently Asked Questions

What is a Turbo-Compound engine?

An modern piston engine with power-recovery turbines mounted in the exhaust stream. The Wright R-3350 Turbo-Compound used in late Super Constellations had 3 turbines (one per pair of cylinder banks) coupled to the crankshaft via fluid couplings — recovering ~600 hp of exhaust energy that would otherwise be wasted. The result: 3,250 hp total output from an engine that produced 2,500 hp without the turbines. The Turbo-Compound was the most-powerful piston engine ever produced but also the most-complex + maintenance-heavy.

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See Also