Lockheed L-133

Source: Wikipedia, the free encyclopedia.
L-133 "Starjet"
Role Fighter
National origin United States
Manufacturer Lockheed Corporation
Primary user United States Army Air Forces

The Lockheed L-133 was an exotic design started in 1939 which was proposed to be the first jet

P-80 Shooting Star, which did see limited service near the end of war. The P-80 was a less radical design with a single British-based Allison J33
engine, with a conventional tail.

Development

The

jet fighter had been started, which progressed to several different versions on the drawing board. In the meantime, Lockheed was working on an axial-flow L-1000 turbojet
engine of their own design, which was intended to power the culmination of the twin-engine jet fighter project, the Model L-133-02-01.

Throughout World War II, the development of a jet-powered fighter had the potential to bring a decisive advantage in the air battles of the war; as history played out, only Germany built significant numbers of jet fighters before the war ended, but they reached service in the Luftwaffe too late to make a difference.

On March 30, 1942, Lockheed formally submitted the L-133-02-01 to the USAAF for consideration.[1] Powered by two L-1000 turbojets and featuring a futuristic-appearing canard design with slotted flaps to enhance lift, the single-seat fighter was expected to have a top speed of 612 mph (985 km/h) in level flight,[1] but a range of only 310 mi (500 km) [2]

Profile views of the Lockheed L-133

The L-133 had a main wing shape that was essentially identical to the outer wing sections of the Lockheed P-38 Lightning. In many respects the L-133 was far ahead of its time, with futuristic features including:

  • canard layout;
  • blended wing-body planform; and,
  • two engines in a very low-drag integral fuselage location.

The USAAF considered the L-133 to be too advanced for the time, and did not pursue the project.[1] The experience gained with the design served Lockheed well in the development of the USAAF's first operational jet fighter, the P-80 Shooting Star. Although entering combat service after the war had ended, the P-80 was less advanced than the L-133. Because the USAAF didn't give the L-133 project the go-ahead, the advanced engines intended for the L-133 had long pauses in their development. The most expedient engine choice for the P-80 thus became the Allison J33, based on British centrifugal compressor designs. The P-80 was a cheap-to-build single-engine aircraft with a conventional wing and tailplane design, not using the blended wing-body and canard layout of the L-133.

Specifications (L-133-02-01)

Data from [3]

General characteristics

  • Crew: 1
  • Length: 48 ft 4 in (14.73 m)
  • Wingspan: 46 ft 8 in (14.22 m)
  • Wing area: 325 sq ft (30.194 m2)
  • Powerplant: 2 × Lockheed L-1000 axial-flow turbojets , 5,100 lbf (23 kN) thrust each

Performance

  • Maximum speed: 625 mph (985 km/h, 543 kn)

Armament

  • 4 × 20mm nose-mounted cannon

See also

  • Planes That Never Flew

Aircraft of comparable role, configuration, and era

Related lists

References

Notes

  1. ^ a b c Norton 2008, p. 221
  2. ^ "America's First Jet Fighter". Planes That Never Flew. Season 1. Episode 3. 2003. Discovery Channel. Retrieved 15 December 2023 – via YouTube.
  3. ^ Francillon 1982, p. 468

Bibliography

External links