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Boeing 377-10-29 Stratocruiser · N74603 · Aero Spacelines Inc.

Boeing 377-10-29 Stratocruiser illustration in Aero Spacelines Inc. livery Illustrative image; it may differ from the actual aircraft.

Boeing 377-10-29 Stratocruiser

B377-15949Scrapped
RegistrationUSN74603
Verified aircraft dataagainst the official civil aviation registerWhat does this badge mean?We checked that this aircraft’s registration, serial number and model match the official civil aviation register: FAA (United States), data as of Oct 8, 2026.That makes its identity more reliable. The verification expires after 12 months: if the register stops confirming it, the badge disappears.How we verify
OperatorAero Spacelines Inc.
3operators
0incidents
0accidents
0logbook years
0photos

Boeing 377-10-29 Stratocruiser built in 1949. Operated for Northwest Airways, Aero Spacelines Inc. and Northwest Airlines. Scrapped.

NewNearly newYoungMatureAgingOld
Aging · 24 years
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
First flight1949
Country of registrationEstados Unidos
MSN15949
Hex / ICAO 24-bitAA0B48
VerificationIdentity verified against the official register of FAA (United States) · Oct 8, 2026

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

1949
Built
Assembled by Boeing.
Apr 9, 1949
Delivered to Northwest Airways
Delivered to Northwest Airways as N74603.
Oct 1, 1959
Transferred to Lockheed Aircraft Corp.
Transferred to Lockheed Aircraft Corp..
Nov 23, 1973
Transferred to Aero Spacelines Inc.
Transferred to Aero Spacelines Inc..

Operators

1949-04-09
Northwest Airways
Registration N74603
1959-10-01
Lockheed Aircraft Corp.
Registration N74603
1973-11-23
Aero Spacelines Inc.
Registration N74603
—
Northwest Airlines
Registration N74603
—
Northwest Airways
Registration N74603

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Cite

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This page was last updated on October 15, 2026

APA

Vuelopedia. (2026, October 15). Boeing 377-10-29 Stratocruiser · N74603 · Aero Spacelines Inc.. Retrieved October 16, 2026, from https://vuelopedia.org/en/aircraft/B377-15949

MLA

“Boeing 377-10-29 Stratocruiser · N74603 · Aero Spacelines Inc..” Vuelopedia, Fundación Poderia, 15 Oct. 2026, vuelopedia.org/en/aircraft/B377-15949. Accessed 16 Oct. 2026.

Chicago

Vuelopedia. “Boeing 377-10-29 Stratocruiser · N74603 · Aero Spacelines Inc..” Fundación Poderia. Last modified October 15, 2026. https://vuelopedia.org/en/aircraft/B377-15949.

Harvard

Vuelopedia (2026) Boeing 377-10-29 Stratocruiser · N74603 · Aero Spacelines Inc.. Available at: https://vuelopedia.org/en/aircraft/B377-15949 (Accessed: 16 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_b377_15949,
  author       = {{Vuelopedia}},
  title        = {{Boeing 377-10-29 Stratocruiser · N74603 · Aero Spacelines Inc.}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-15},
  url          = {https://vuelopedia.org/en/aircraft/B377-15949},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/B377-15949}},
  urldate      = {2026-10-16},
  note         = {Accessed 2026-10-16}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/B377-15949 |title=Boeing 377-10-29 Stratocruiser · N74603 · Aero Spacelines Inc. |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-15 |access-date=2026-10-16 |language=en}}