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Martin 4-0-4 · N257S · Air South

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

Martin 4-0-4

M404-14110Scrapped
RegistrationUSN257S
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
OperatorAir South
6operators
0incidents
0accidents
0logbook years
0photos

Martin 4-0-4. Operated for Eastern Air Lines, Southern Airways and Dolphin Aviation Inc.. 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

ManufacturerMartin
Country of registrationEstados Unidos
MSN14110
VerificationIdentity verified against the official register of FAA (United States) · 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, 1951
Delivered to Eastern Air Lines
Delivered to Eastern Air Lines as N441A.
Jun 1, 1964
Transferred to Southern Airways
Transferred to Southern Airways.
May 1, 1976
Transferred to Shawnee Airlines
Transferred to Shawnee Airlines.
Apr 1, 1977
Transferred to Florida Air Lines
Transferred to Florida Air Lines.
Dec 1, 1977
Transferred to Air South
Transferred to Air South.

Operators

1951-11-01
Eastern Air Lines
Registration N441A
1964-06-01
Southern Airways
Registration N257S
1976-05-01
Shawnee Airlines
Registration N257S
1977-04-01
Florida Air Lines
Registration N257S
1977-12-01
Air South
Registration N257S
—
Dolphin Aviation Inc.
Registration N257S

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Cite

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This page was last updated on October 10, 2026

APA

Vuelopedia. (2026, October 10). Martin 4-0-4 · N257S · Air South. Retrieved October 16, 2026, from https://vuelopedia.org/en/aircraft/M404-14110

MLA

“Martin 4-0-4 · N257S · Air South.” Vuelopedia, Fundación Poderia, 10 Oct. 2026, vuelopedia.org/en/aircraft/M404-14110. Accessed 16 Oct. 2026.

Chicago

Vuelopedia. “Martin 4-0-4 · N257S · Air South.” Fundación Poderia. Last modified October 10, 2026. https://vuelopedia.org/en/aircraft/M404-14110.

Harvard

Vuelopedia (2026) Martin 4-0-4 · N257S · Air South. Available at: https://vuelopedia.org/en/aircraft/M404-14110 (Accessed: 16 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_m404_14110,
  author       = {{Vuelopedia}},
  title        = {{Martin 4-0-4 · N257S · Air South}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-10},
  url          = {https://vuelopedia.org/en/aircraft/M404-14110},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/M404-14110}},
  urldate      = {2026-10-16},
  note         = {Accessed 2026-10-16}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/M404-14110 |title=Martin 4-0-4 · N257S · Air South |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-10 |access-date=2026-10-16 |language=en}}