Austro Engine AE50R explained

The Austro Engine AE50R is an Austrian aircraft engine, produced by Austro Engine of Wiener Neustadt for use in motorgliders and UAVs.[1] [2]

Design and development

The AE50R is based on the MidWest AE50. Diamond Aircraft Industries purchased the design from Mid-West Engines Limited on 10 March 2003 and took over as the type certificate holder. Diamond formed its subsidiary, Austro Engine, to produce the engine.[3]

The engine is a single rotor four-stroke, air and liquid-cooled, 2941NaN1 gasoline Wankel engine design, with a mechanical gearbox reduction drive employing a helical gear set with a reduction ratio of 3.225:1. Cooling is predominantly liquid, with forced air cooling for the rotor core. A starter and generator are standard equipment. It employs dual capacitor discharge ignition with variable ignition timing and produces 550NaN0 at 7750 rpm.[1] [2] [3]

The engine was originally type certified by Mid-West on 18 Dec 1992 to JAR-22 H, Change 4, dated 13 September 1982, incl. Orange Paper 22/90/1. It was transferred to an EASA Type Certificate under EASA Part 22 Subpart H on 4 April 2011.[3]

Variants

AE50R
  • Base version, equipped with a conventional dual ignition system and a carburettor, certified 18 December 1992[3]
    AE50RA
  • Version equipped with a conventional dual ignition system and a carburettor, with differing engine attachment point geometry, certified 26 September 2001[3]
    AE50RAB
  • Version equipped with a conventional dual ignition system and a carburettor, with differing engine attachment point geometry, certified 26 September 2001[3]
    IAE50R-AA
  • Version equipped with electronic dual ignition system and fuel injection system, with differing engine attachment point geometry, with a narrower width of 3391NaN1, certified 26 September 2001[3]

    Applications

    Notes and References

    1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, pages 238-239. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
    2. Web site: Products. . austroengine.at. 8 July 2015.
    3. Web site: EASA.E.085 . 8 July 2015. European Aviation Safety Agency. easa.europa.eu. 4 April 2011.

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