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Martin 4-0-4 · HK-1485 · Southern Airways

Martin 4-0-4 illustration in Southern Airways livery Illustrative image; it may differ from the actual aircraft.

Martin 4-0-4

M404-14237Written off
RegistrationCOHK-1485
Verified aircraft dataagainst the official civil aviation registerWhat does this badge mean?Using its former registration (N143S), we checked that this aircraft’s 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
OperatorSouthern Airways
2operators
0incidents
0accidents
0logbook years
0photos

Martin 4-0-4. Operated for Eastern Air Lines and Southern Airways.

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

ManufacturerMartin
Country of registrationColombia
MSN14237
VerificationIdentity verified against the official register of FAA (United States) under its former registration N143S · Oct 8, 2026

The model · Martin 4-0-4

Figures for the 4-0-4 variant, the most representative of the family

Length22.7 m75 ft
Wingspan28.4 m93 ft
Height8.7 m28 ft
Range1,738 km938 NMWith a typical passenger load
Cruise speed451 km/h244 ktMach 0.42
Service ceiling8,839 m28,999 ft
Maximum take-off weight20,366 kg44,899 lb
Maximum payload7,155 kg15,774 lbIts 40 passengers with baggage would weigh about 4.0 t; the rest is fuel and cargo
Typical capacity40 passengers
Endurance3 h 51 minAt cruise speed, non-stop

The type first flew in 1950 (76 years ago) · About 103 units built · Production ended in 1953

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 Martin 4-0-4 Compare this aircraft

Flight logbook

Under research

Aircraft chronology

Nov 1, 1952
Delivered to Eastern Air Lines
Delivered to Eastern Air Lines as N489A.
Nov 1, 1961
Transferred to Southern Airways
Transferred to Southern Airways.

Operators

1952-11-01
Eastern Air Lines
Registration N489A
1961-11-01
Southern Airways
Registration N143S

In memoriam

This aircraft suffered a serious accident or hull loss. Out of respect for what happened and for the people who may have been affected, this record does not enable the register of memories.

Cite

To cite this page in academic work, an article or Wikipedia, choose the style and copy the reference. The access date is today.

This page was last updated on October 10, 2026

APA

Vuelopedia. (2026, October 10). Martin 4-0-4 · HK-1485 · Southern Airways. Retrieved October 16, 2026, from https://vuelopedia.org/en/aircraft/M404-14237

MLA

“Martin 4-0-4 · HK-1485 · Southern Airways.” Vuelopedia, Fundación Poderia, 10 Oct. 2026, vuelopedia.org/en/aircraft/M404-14237. Accessed 16 Oct. 2026.

Chicago

Vuelopedia. “Martin 4-0-4 · HK-1485 · Southern Airways.” Fundación Poderia. Last modified October 10, 2026. https://vuelopedia.org/en/aircraft/M404-14237.

Harvard

Vuelopedia (2026) Martin 4-0-4 · HK-1485 · Southern Airways. Available at: https://vuelopedia.org/en/aircraft/M404-14237 (Accessed: 16 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_m404_14237,
  author       = {{Vuelopedia}},
  title        = {{Martin 4-0-4 · HK-1485 · Southern Airways}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-10},
  url          = {https://vuelopedia.org/en/aircraft/M404-14237},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/M404-14237}},
  urldate      = {2026-10-16},
  note         = {Accessed 2026-10-16}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/M404-14237 |title=Martin 4-0-4 · HK-1485 · Southern Airways |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-10 |access-date=2026-10-16 |language=en}}