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Convair CV-640 · XA-UNH · Aeronaves TSM

Convair CV-640 illustration in Aeronaves TSM livery Illustrative image; it may differ from the actual aircraft.

Convair CV-640

CV340-332Unknown
RegistrationMXXA-UNH
Verified aircraft dataagainst the official civil aviation registerWhat does this badge mean?Using its former registration (HB-IMC), we checked that this aircraft’s serial number and model match the official civil aviation register: BAZL (Switzerland), data as of Oct 9, 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
OperatorAeronaves TSM
6operators
0incidents
0accidents
0logbook years
0photos

Convair CV-640. Has operated for Swissair, Martin's Air Charter and Redwing 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.

Recent flights

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Technical data

ManufacturerConvair
Country of registrationMéxico
MSN332
Hex / ICAO 24-bitA866B2
VerificationIdentity verified against the official register of BAZL (Switzerland) under its former registration HB-IMC · Oct 9, 2026

The model · Convair CV-340 / 440

Figures for the CV-440 Metropolitan variant, the most representative of the family

Length24.1 m79 ft
Wingspan32.1 m105 ft
Height8.6 m28 ft
Range2,092 km1,130 NMWith a typical passenger load
Cruise speed465 km/h251 ktMach 0.44
Service ceiling7,590 m24,902 ft
Maximum take-off weight22,544 kg49,701 lb
Maximum payload7,433 kg16,387 lbIts 44 passengers with baggage would weigh about 4.4 t; the rest is fuel and cargo
Typical capacity44 passengersUp to 52 in a high-density layout
Endurance4 h 30 minAt cruise speed, non-stop

With its 2,092 km range, from Saltillo it could fly non-stop as far as:

MIAMiami2,067 kmLAXLos Angeles1,925 kmHAVHavana1,897 kmATLAtlanta1,829 kmCUNCancún1,519 km
Beyond its rangeORDChicago2,183 km

The type first flew in 1951 (75 years ago) · About 510 units built · Production ended in 1958

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 Convair CV-340 / 440 Compare this aircraft

Airports

Airports of the airlines that have operated it

since 2010Aeronaves TSM airline base
Base
SLWSaltillo

Flight logbook

Under research

Aircraft chronology

Jun 27, 1956
Delivered to Swissair
Delivered to Swissair as HB-IMC.
Feb 1, 1967
Transferred to Martin's Air Charter
Transferred to Martin's Air Charter.
Jun 1, 1972
Transferred to Zantop International Airlines
Transferred to Zantop International Airlines.
Mar 13, 1997
Transferred to Century Airlines
Transferred to Century Airlines.
Feb 1, 2010
Transferred to Aeronaves TSM
Transferred to Aeronaves TSM.
Feb 5, 2010
Transferred to Redwing Airways
Transferred to Redwing Airways.

Operators

1956-06-27
Swissair
Registration HB-IMC
1967-02-01
Martin's Air Charter
Registration PH-MAL
1972-06-01
1997-03-13
Century Airlines
Registration N640R
2010-02-01
Aeronaves TSM
Registration XA-UNH
2010-02-05
Redwing Airways
Registration N640R

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Current position of the aircraft

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This page was last updated on October 10, 2026

APA

Vuelopedia. (2026, October 10). Convair CV-640 · XA-UNH · Aeronaves TSM. Retrieved October 20, 2026, from https://vuelopedia.org/en/aircraft/CV340-332

MLA

“Convair CV-640 · XA-UNH · Aeronaves TSM.” Vuelopedia, Fundación Poderia, 10 Oct. 2026, vuelopedia.org/en/aircraft/CV340-332. Accessed 20 Oct. 2026.

Chicago

Vuelopedia. “Convair CV-640 · XA-UNH · Aeronaves TSM.” Fundación Poderia. Last modified October 10, 2026. https://vuelopedia.org/en/aircraft/CV340-332.

Harvard

Vuelopedia (2026) Convair CV-640 · XA-UNH · Aeronaves TSM. Available at: https://vuelopedia.org/en/aircraft/CV340-332 (Accessed: 20 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_cv340_332,
  author       = {{Vuelopedia}},
  title        = {{Convair CV-640 · XA-UNH · Aeronaves TSM}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-10},
  url          = {https://vuelopedia.org/en/aircraft/CV340-332},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/CV340-332}},
  urldate      = {2026-10-20},
  note         = {Accessed 2026-10-20}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/CV340-332 |title=Convair CV-640 · XA-UNH · Aeronaves TSM |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-10 |access-date=2026-10-20 |language=en}}