Illustrative image; it may differ from the actual aircraft.

Martin 4-0-4

M404-14137Written off

RegistrationBOCP-1738

AEOperatorAero Beni

3operators

0incidents

0accidents

0logbook years

0photos

Martin 4-0-4. Operated for Eastern Air Lines, Aero Beni and Fri Reyes.

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 registrationBolivia

MSN14137

VerificationPending check against the official civil register

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

Dec 1, 1951

Delivered to Eastern Air Lines

Delivered to Eastern Air Lines as N446A.

Jan 15, 1992

Transferred to Aero Beni

Transferred to Aero Beni.

Operators

1951-12-01

Eastern Air Lines

Registration N446A

1992-01-15

Aero Beni

Registration CP-1738

—

Fri Reyes

Registration CP-1738

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

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This page was last updated on October 10, 2026

APA

Vuelopedia. (2026, October 10). Martin 4-0-4 · CP-1738 · Aero Beni. Retrieved October 18, 2026, from https://vuelopedia.org/en/aircraft/M404-14137

MLA

“Martin 4-0-4 · CP-1738 · Aero Beni.” Vuelopedia, Fundación Poderia, 10 Oct. 2026, vuelopedia.org/en/aircraft/M404-14137. Accessed 18 Oct. 2026.

Chicago

Vuelopedia. “Martin 4-0-4 · CP-1738 · Aero Beni.” Fundación Poderia. Last modified October 10, 2026. https://vuelopedia.org/en/aircraft/M404-14137.

Harvard

Vuelopedia (2026) Martin 4-0-4 · CP-1738 · Aero Beni. Available at: https://vuelopedia.org/en/aircraft/M404-14137 (Accessed: 18 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_m404_14137,
  author       = {{Vuelopedia}},
  title        = {{Martin 4-0-4 · CP-1738 · Aero Beni}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-10},
  url          = {https://vuelopedia.org/en/aircraft/M404-14137},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/M404-14137}},
  urldate      = {2026-10-18},
  note         = {Accessed 2026-10-18}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/M404-14137 |title=Martin 4-0-4 · CP-1738 · Aero Beni |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-10 |access-date=2026-10-18 |language=en}}