Cessna 340

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Cessna 335/340
Cessna 340A II, Private JP6927036.jpg
Cessna 340A
General information
TypeLight twin aircraft
Manufacturer Cessna
Number built1,351
History
Manufactured1971 (prototype) 1972–1984 (production)
Introduction date1972
First flight1970
Developed from Cessna 310 [1]
Instrument panel 340Apanel.jpg
Instrument panel
1973 model Cessna 340 Cessna340C-FZOH02A.jpg
1973 model Cessna 340
1973 model Cessna 340 front view Cessna340C-FZOH01.jpg
1973 model Cessna 340 front view
Airstair door 340Adoor.jpg
Airstair door

The Cessna 340 is a twin piston engine pressurized business aircraft that was manufactured by Cessna. [1] [2]

Contents

The Cessna 335 is an unpressurized version, which appears the same externally as the 340. [2] It sold in smaller numbers than the 340. [3]

Design and development

The 340 was conceived as a cabin-class development of the successful Cessna 310. [1]

The 340 is a six-seat aircraft, with four passenger seats, an aisle and an airstair door. The tail and landing gear were based on the Cessna 310's units, while its wings were from the Cessna 414. The 340's primary selling feature was its spacious, pressurized cabin, the first in a light twin. [1] [2] [3]

Work on the 340 began in 1969, and the first aircraft was delivered in 1971, behind schedule because one of the prototypes crashed during flight testing in 1970. [3]

The early models have two turbocharged Continental TSIO-520-K engines with 285 hp (214 kW) each. Starting in 1976, the engines were upgraded to the more powerful Continental TSIO-520-NB engines of 310 hp (233 kW). This variant is known as the 340A and it also features smaller 75.5-inch (1,920 mm) diameter propellers to reduce noise and meet ICAO Annex 16 noise requirements. [1] [3] [4]

The Cessna 335 was marketed as a low-priced, non-pressurized, version powered by 300 hp (225 kW) Continental TSIO-520-EB engines. The prototype 335 made its maiden flight on December 5, 1978, with the first production aircraft flying in 1979. [5] It was not a market success, with only 64 built by the time production ended in 1980. The 340 was more successful and remained in production until 1984 with 1287 built. [3]

Variants

340
Pressurized six-seat twin powered by two Continental TSIO-520-K engines of 285 hp (213 kW) each. Certified 15 October 1971. [3] [4] 350 built. [6]
340A
Pressurized six-seat twin powered by two Continental TSIO-520-NB engines of 310 hp (230 kW) each. Certified 19 November 1975 [3] [4] 948 built. [6]
335
Unpressurized six-seat twin powered by Continental TSIO-520-EB engines of 300 hp (220 kW) each. Certified 2 October 1979 [3] [4] 65 built. [7]
Riley Rocket 340
Conversion of Cessna 340 aircraft by fitting two 340 hp (250 kW)) Lycoming TIO-540-R engines. Also designated R340L. [8]
Riley Super 340
Conversion of 1972–1975 Cessna 340 aircraft by fitting two 310 hp (230 kW) Continental TSIO-520-J/-N engines. Also known as R340 Super. [9]

Specifications (340A)

Data from Jane's All The World's Aircraft 1980–81 [5]

General characteristics

Performance

See also

Aircraft of comparable role, configuration, and era

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References

  1. 1 2 3 4 5 Plane and Pilot: 1978 Aircraft Directory, page 92. Werner & Werner Corp, Santa Monica CA, 1977. ISBN   0-918312-00-0
  2. 1 2 3 Montgomery, MR & Gerald Foster: A Field Guide to Airplanes, Second Edition, page 106. Houghton Mifflin Company, 1992. ISBN   0-395-62888-1
  3. 1 2 3 4 5 6 7 8 "The Cessna 340 & 335". Demand Media, Inc. 2008. Retrieved August 9, 2008.
  4. 1 2 3 4 "Type Certificate Data Sheet No. 3A25" (PDF). Federal Aviation Administration. October 19, 2018. Retrieved August 19, 2022.
  5. 1 2 Taylor 1980, pp. 318–319.
  6. 1 2 Simpson 1991, p.108
  7. ↑ Simpson 1991, p. 107
  8. ↑ Taylor 1982, p. 454.
  9. ↑ Taylor 1988, pp. 461–462.
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