The Curtiss R-600 Challenger was a six-cylinder, double-row, air-cooled, radial engine for aircraft use built in the United States in the late 1920s. It developed .

Design and development

Curtiss started work on a small six-cylinder engine in May 1927. The engine was unusual in its design with aluminium cylinders mounted at 60°, so that it was in effect two staggered three cylinder engines. The engine was first run in December 1927, and was taken to market producing between at 1,800 rpm.

Applications

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Specifications (R-600)

References

Citations

Bibliography

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USAF museum

External links

{{US military piston aeroengines 1920s aircraft piston engines Aircraft air-cooled radial piston engines R-600