Illustrative image; it may differ from the actual aircraft.

Boeing 377-10-34 Stratocruiser

B377-15966Scrapped

RegistrationUSN31226

UNOperatorUnited Air Lines

1operators

0incidents

0accidents

0logbook years

0photos

Boeing 377-10-34 Stratocruiser. Operated for United Air Lines. Scrapped.

Vuelopedia is a work in progress: it currently holds about 30% of the information we expect to have by the third quarter of 2027. Although we use only official, highly reliable sources, some aircraft data and history may still contain errors or inaccuracies. We work hard to clear every anomaly from the records using specialized verification tools.

Technical data

ManufacturerBoeing

Country of registrationEstados Unidos

MSN15966

VerificationPending check against the official civil register

The model · Boeing 377 Stratocruiser

Figures for the 377-10-26 variant, the most representative of the family

Length33.6 m110 ft

Wingspan43.1 m141 ft

Height11.7 m38 ft

Range6,759 km3,650 NMWith a typical passenger load

Cruise speed484 km/h261 ktMach 0.46

Service ceiling9,754 m32,001 ftIt flies above Everest (1.1 times its height)

Maximum take-off weight67,132 kg148,001 lb

Maximum payload29,257 kg64,501 lbIts 61 passengers with baggage would weigh about 6.1 t; the rest is fuel and cargo

Typical capacity61 passengersUp to 86 in a high-density layout

Endurance13 h 58 minAt cruise speed, non-stop

The type first flew in 1947 (79 years ago) · About 56 units built · Production ended in 1950

Figures for the type, not for this particular aircraft: each variant and each configuration changes something. They are shown in both systems used in aviation.

The full story of the Boeing 377 Stratocruiser Compare this aircraft

Flight logbook

Under research

Aircraft chronology

Oct 1, 1949

Delivered to United Air Lines

Delivered to United Air Lines as N31226.

Operators

1949-10-01

United Air Lines

Registration N31226

Memories coming soon

The register of memories is not open on this aircraft yet. We are enabling it gradually, record by record, as we consolidate each aircraft's information.

Before opening it we check the aircraft identity — its registration, its serial number and its model — against the civil register of the authority that registered it, so that every memory belongs to the exact aircraft that lived it. When that work reaches this record, the register will open here.

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This page was last updated on October 10, 2026

APA

Vuelopedia. (2026, October 10). Boeing 377-10-34 Stratocruiser · N31226 · United Air Lines. Retrieved October 17, 2026, from https://vuelopedia.org/en/aircraft/B377-15966

MLA

“Boeing 377-10-34 Stratocruiser · N31226 · United Air Lines.” Vuelopedia, Fundación Poderia, 10 Oct. 2026, vuelopedia.org/en/aircraft/B377-15966. Accessed 17 Oct. 2026.

Chicago

Vuelopedia. “Boeing 377-10-34 Stratocruiser · N31226 · United Air Lines.” Fundación Poderia. Last modified October 10, 2026. https://vuelopedia.org/en/aircraft/B377-15966.

Harvard

Vuelopedia (2026) Boeing 377-10-34 Stratocruiser · N31226 · United Air Lines. Available at: https://vuelopedia.org/en/aircraft/B377-15966 (Accessed: 17 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_b377_15966,
  author       = {{Vuelopedia}},
  title        = {{Boeing 377-10-34 Stratocruiser · N31226 · United Air Lines}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-10},
  url          = {https://vuelopedia.org/en/aircraft/B377-15966},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/B377-15966}},
  urldate      = {2026-10-17},
  note         = {Accessed 2026-10-17}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/B377-15966 |title=Boeing 377-10-34 Stratocruiser · N31226 · United Air Lines |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-10 |access-date=2026-10-17 |language=en}}