From BMW Tech

The BMW X was a small five-cylinder Radial engine for sport and training aircraft. Although this engine proved successful at several large-scale events in 1930, including that year's round-Europe flight, only a few were built.

The successor model to the BMW X five-cylinder radial engine, the BMW Xa, was introduced in 1931, with the Engine displacement increased from 2.2 to 2.9 liters. Power output went up from 50 to 68 hp. The Xa was also not built in any quantity either, and was mainly installed in training and sports aircraft.^[1]

Contents 1 Variants 2 Applications 3 Specifications (BMW Xa) 4 See also 5 References 5.1 Notes 5.2 Bibliography 6 External links

Variants

• X
• Xa

Applications

• BFW M.23
• Klemm L25

Specifications (BMW Xa)

General characteristics

• Type: 5 cylinder radial engine
• Bore: 90 mm
• Stroke: 92.5 mm
• Displacement: 2.93 L

<h3>Components

• Cooling system: Air cooled

<h3>Performance

• Power output: 51 kW (68 hp)

See also

Comparable engines

• Armstrong Siddeley Genet
• Warner Scarab Jr
  

Related lists

• List of aircraft engines
  

References

Notes

Bibliography

External links

• Image of BMW X and Klemm L-25

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