MWfly B22 explained

The MWfly B22 is a family of Italian aircraft engines, designed and produced by MWfly of Passirana di Rho for use in light aircraft.[1]

Design and development

The B22 series are all four-cylinder four-stroke, horizontally-opposed, 22031NaN1 displacement, liquid-cooled, gasoline engine designs. They all employ single electronic ignition systems and have a compression ratio of 10.4:1.[1]

Variants

B22D
  • Direct drive model with an output of 950NaN0 at 3300 rpm[1] or 1000NaN0 at 3500 rpm, or 1350NaN0 at 4700 rpm.[2]
    B22G
  • Geared model with a mechanical gearbox reduction drive with a reduction ratio of 1.731:1 or 1.958:1 and an output of 1220NaN0 at 4000 rpm, or 1350NaN0 at 4700 rpm, respectively.[2]
    B22L
  • Model with a mechanical gearbox reduction drive with a reduction ratio of 1.73:1 and an output of 1150NaN0 at 3950 rpm. By March 2018 the engine was no longer advertised on the company website and seems to be out of production.[1] [2]
    B22R
  • Model with a mechanical gearbox reduction drive with a reduction ratio of 2.14:1 and an output of 1300NaN0 at 4700 rpm. By March 2018 the engine was no longer advertised on the company website and seems to be out of production.[1] [2]

    Notes and References

    1. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 260-261. Flying Pages Europe SARL, 2015.
    2. Web site: B22 AeroPower Series . 29 March 2018. MWfly. www.mwfly.it.

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