Английская Википедия:D-Motor LF39

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The D-Motor LF39 is a lightweight liquid cooled side-valve four-stroke flat six 4 litre petrol aircraft engine, produced by D-Motor in Deerlijk, Belgium.[1] It is a derivative of the flat four D-Motor LF26.

Design

The LF39 produces Шаблон:Convert and has a dry weight of Шаблон:Convert.[2] The power curve is virtually linear from 50 kW @ 1920 rpm to 91.55 kW @ 3100 rpm.[3] Just like its smaller sibling, the LF26, this direct-drive aero-engine has a side-valve (flathead) valvetrain. The engine has port injection, a dry sump lubrication system, and dual ignition.[4]

Development

With the aid of funding from the Belgian government,[5] the D-Motor LF39 was developed from the LF26. The company encountered problems with the casting of the flat-six cylinder block and there were further problems with the flywheel/alternator, but these were solved using a lighter flywheel with neodymium magnets.[1]

The 2014 expected price was 17,800.[6]

In September 2014, EDM Aerotec announced the results of test flying the engine in their EDM Aerotec CoAX 2D/2R coaxial rotor helicopter, saying, "We are glad to present the 6 cylinder in action. After more than 100 hours testflying ... the coax helicopter equipped with the 6 cylinder... (proved) a perfect combination according to the test pilots." and added, "Another 6 cylinder has been installed in a test plane in Belgium".[7]

Applications

Specifications

Reference: D-Motor[9][10] Шаблон:Pistonspecs

See also

Шаблон:Aircontent

References

Шаблон:Reflist

External links

  1. 1,0 1,1 Шаблон:Cite web
  2. D-Motor publicity specification sheet, August 2014
  3. D-motor performance graph
  4. Ошибка цитирования Неверный тег <ref>; для сносок official не указан текст
  5. Шаблон:Cite web
  6. Шаблон:Cite web
  7. Шаблон:Cite web
  8. Шаблон:Cite web
  9. Шаблон:Cite web
  10. Шаблон:Cite web