Curtiss R-600 Challenger

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 170 to 180 horsepower (127 to 134 kW).

R-600 Challenger
Preserved R-600 engine
Type	Radial engine
Manufacturer	Curtiss Aeroplane and Motor Company
First run	1920s

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 170 and 180 horsepower (127 and 134 kW) at 1,800 rpm.

Applications

• ANBO VI
• Consolidated XPT-5
• Curtiss Robin
• Curtiss-Wright CW-14C Travel Air
• Hodkinson HT-1
• Rearwin 2000

Specifications (R-600)

Data from Nutt, 1928 p.842

General characteristics

• Type: Six-cylinder, double-row, radial engine
• Bore: 5.125 in (130.2 mm)
• Stroke: 4.875 in (123.8 mm)
• Displacement: 603.4 cu in (9.89 L)
• Diameter: 42.625 in (1082.7 mm)
• Dry weight: 420lb (190.5 kg)

Components

• Cooling system: Air-cooled

Performance

• Power output: 170 hp (127 kW) at 1,800 rpm

See also

Comparable engines

• Bristol Jupiter
• Continental R-670
• Pratt & Whitney R-985 Wasp Junior

Related lists

• List of aircraft engines

References

Bibliography

• Nutt, Arthur (8 September 1928). "The Curtiss "Challenger"". Aviation: 808–842.
• USAF museum

External links

Media related to Curtiss R-600 at Wikimedia Commons