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The Continental A40 engine is a carbureted four-cylinder, horizontally opposed, air-cooled aircraft engine that was developed especially for use in light aircraft by Continental Motors. It was produced between 1931 and 1941.[1][2][3]

A40
Preserved Continental A40-5 (dual magneto, two spark plugs per cylinder)
Type Piston aero-engine
National origin United States
Manufacturer Teledyne Continental Motors
First run 1931
Major applications Taylor E-2 Cub
Piper J-2 Cub

Design and development


The 37 hp (28 kW) A40 was introduced in the depths of the Great Depression. At the time there were a number of small engines available but all suffered from either high cost, complexity, or low reliability. The A-40 addressed all those shortcomings and was instrumental in the production of light aircraft in the difficult economic constraints of the period. The A-40-4 introduced an increase in power to 40 hp (30 kW). The engine later inspired the A-50 and subsequent engines.[1][2][4]

The A40 featured single ignition until the A-40-5 version, which introduced dual ignition. All engines in this family have a 5.2:1 compression ratio and were designed to run on fuel with a minimum octane rating of 73.[2][3]

The entire family of engines had its certification terminated on 1 November 1941. Engines produced before that date are still certified, but none can be produced after that date.[2][3]


Variants


A40
Single ignition, 37 hp (28 kW) at 2550 rpm, dry weight 144 lb (65 kg)[2]
A40-2
Single ignition, 37 hp (28 kW) at 2550 rpm, dry weight 144 lb (65 kg)[2]
A-40-3
Single ignition, 37 hp (28 kW) at 2550 rpm, dry weight 144 lb (65 kg)[2] Featured cadmium-nickel connecting rod bearings.[5]
A40-4
Single ignition, 40 hp (30 kW) at 2575 rpm, dry weight 144 lb (65 kg),[2] Steel backed connecting rod inserts
A40-5
Dual ignition, 40 hp (30 kW) at 2575 rpm, dry weight 156 lb (71 kg)[3]

Applications


Taylor E-2 Cub showing its A-40 engine with the cylinders protruding through the cowling, Canada Aviation Museum.
Taylor E-2 Cub showing its A-40 engine with the cylinders protruding through the cowling, Canada Aviation Museum.

Engines on display



Specifications (A40-5)


Data from Type Certificate Data Sheet 72,[2] Jane's 1938[10]

General characteristics

Components

Performance


See also


Comparable engines

Related lists


References


  1. "Continental A-40". Old Rhinebeck Aerodrome. Retrieved 2011-09-26.
  2. Federal Aviation Administration (November 1941). "Approved Type Certificate 72" (PDF). Retrieved 2019-01-11.
  3. Federal Aviation Administration (November 1941). "Approved Type Certificate 174" (PDF). Retrieved 2019-01-11.
  4. Christy, Joe: Engines for Homebuilt Aircraft & Ultralights, pages 8-9. TAB Books, 1983. ISBN 0-8306-2347-7
  5. Sport Aviation. December 1959. {{cite journal}}: Missing or empty |title= (help)
  6. Wooden props (2008). "Fahlin Propellers". Archived from the original on 2013-12-28. Retrieved 2008-12-13.
  7. "ATC 660 data sheet" (PDF). Federal Aviation Administration. Retrieved 2011-09-27.
  8. "Aircraft Specification No. A-691" (PDF). Federal Aviation Administration. Retrieved 2011-09-27.
  9. "TC 637 data sheet" (PDF). Federal Aviation Administration. Retrieved 2011-09-26.
  10. Jane's All the World's Aircraft 1938. London: Sampson, Low & Martin company Limited. 1938.



На других языках


[de] Continental A40

Der Continental A40 ist ein luftgekühlter Vierzylinderboxermotor des US-amerikanischen Herstellers Continental Motors, der speziell für den Einsatz in Leichtflugzeugen entwickelt wurde. Er wurde in den Jahren 1931 bis 1941 gebaut.[1]
- [en] Continental A40



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