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Martin 4-0-4 · N255S · Pro Air Services

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

Martin 4-0-4

M404-14246Unknown
RegistrationUSN255S
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
OperatorPro Air Services
6operators
0incidents
0accidents
0logbook years
0photos

Martin 4-0-4. Has operated for Eastern Air Lines, Southern Airways and Air South.

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.

Recent flights

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Technical data

ManufacturerMartin
Country of registrationEstados Unidos
MSN14246
Hex / ICAO 24-bitA26BA1
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

With its 1,738 km range, from Atlanta it could fly non-stop as far as:

CUNCancún1,421 kmJFKNew York1,222 kmHAVHavana1,200 kmYYZToronto1,191 kmDFWDallas-Fort Worth1,175 km
Beyond its rangeMEXMexico City2,143 km

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

Airports

Airports of the airlines that have operated it

current operatorAir South airline base
Base
ATLAtlanta

Flight logbook

Under research

Aircraft chronology

Jan 23, 1953
Delivered to Eastern Air Lines
Delivered to Eastern Air Lines as N498A.
Aug 21, 1963
Transferred to Southern Airways
Transferred to Southern Airways.
Feb 1, 1977
Transferred to Shawnee Airlines
Transferred to Shawnee Airlines.
Sep 1, 1977
Transferred to Florida Air Lines
Transferred to Florida Air Lines.

Operators

1953-01-23
Eastern Air Lines
Registration N498A
1963-08-21
Southern Airways
Registration N255S
1977-02-01
Shawnee Airlines
Registration N255S
1977-09-01
Florida Air Lines
Registration N255S
—
Pro Air Services
Registration N255S
—
Air South
Registration N255S

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Current position of the aircraft

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This page was last updated on October 15, 2026

APA

Vuelopedia. (2026, October 15). Martin 4-0-4 · N255S · Pro Air Services. Retrieved October 17, 2026, from https://vuelopedia.org/en/aircraft/M404-14246

MLA

“Martin 4-0-4 · N255S · Pro Air Services.” Vuelopedia, Fundación Poderia, 15 Oct. 2026, vuelopedia.org/en/aircraft/M404-14246. Accessed 17 Oct. 2026.

Chicago

Vuelopedia. “Martin 4-0-4 · N255S · Pro Air Services.” Fundación Poderia. Last modified October 15, 2026. https://vuelopedia.org/en/aircraft/M404-14246.

Harvard

Vuelopedia (2026) Martin 4-0-4 · N255S · Pro Air Services. Available at: https://vuelopedia.org/en/aircraft/M404-14246 (Accessed: 17 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_m404_14246,
  author       = {{Vuelopedia}},
  title        = {{Martin 4-0-4 · N255S · Pro Air Services}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-15},
  url          = {https://vuelopedia.org/en/aircraft/M404-14246},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/M404-14246}},
  urldate      = {2026-10-17},
  note         = {Accessed 2026-10-17}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/M404-14246 |title=Martin 4-0-4 · N255S · Pro Air Services |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-15 |access-date=2026-10-17 |language=en}}