BMW X (engine)
The BMW X is 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 swept volume increased from Template:Cvt to Template:Cvt. Power output went up from Template:Cvt. The Xa was also not built in any quantity and was mainly installed in training and sport aircraft.[1]
Variants
- X
- Bore:Template:Cvt, Stroke:Template:Cvt[2]
- Xa
- Bore:Template:Cvt, Stroke:Template:Cvt[2]
Applications
Specifications (BMW Xa)
Data from Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944,[3] and Jane's all the World's Aircraft 1931 [2]
General characteristics
- Type: 5 cylinder radial engine
- Bore: Template:Cvt
- Stroke: Template:Cvt / Template:Cvt (slave rods / master rod)
- Displacement: Template:Cvt (assumes equal stroke for each cylinder)
- Length: Template:Cvt
- Diameter: Template:Cvt
- Dry weight: Template:Cvt
Components
- Valvetrain: 1x inlet and exhaust overhead valves per cylinder operated by pushrods and rockers
- Fuel system: Sum CFV 36 carburettor
- Fuel type: 73 Octane / 80 Octane
- Cooling system: Air cooled
Performance
- Power output:
- Template:Cvt at 2,300 rpm (15 minutes) at sea level
- Template:Cvt at 1,590 rpm (30 minutes) at sea level
- Template:Cvt at 1,980 rpm (max continuous) at sea level
- Template:Cvt at 1,980 rpm (max continuous) at Template:Cvt
- Specific power: Template:Cvt
- Compression ratio: 5.7:1
- Specific fuel consumption: Template:Cvt at max continuous
- Oil consumption: Template:Cvt at max continuous
- Power-to-weight ratio: Template:Cvt
- B.M.E.P.: Template:Cvt
See also
Comparable engines
Related lists
References
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Further reading
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External links
- BMW X on the test rig
- Klemm L 25 sports aircraft with BMW X or BMW Xa engine
- BMW X
- Klemm L 25 sports aircraft with BMW X or BMW Xa aeroengine
- Klemm L 25 sports aircraft with BMW X or BMW Xa aeroengine
- Klemm L 25 sports aircraft with BMW X or BMW Xa engine
- Klemm L 25 sports aircraft with BMW X or BMW Xa engine
- Klemm L 25 sports aircraft with BMW X or BMW Xa engine
- BMW X