Aircraft Type Index

Aircraft Engine index

                   

 

The Continental R-670 Aircraft Engine

The Continental R-670 was a seven cylinder radial engine introduced in the mid 1930's. It was widely used and not just in aircraft, it also powered M2 and M3 American tanks as well as the Amphtrack LVT in WW2, it is best however remembered as powering the Boeing PT-17 Stearman, the famous primary trainer widely used by U.S. military forces during WW2.

Continental R-670 Aircraft Engine

 

Aircraft that were powered by the Continental R-670

American Airmotive NA-75Boeing StearmanCallAir Model A
Cessna 190Fairchild PT-23G class blimp
Timm N2T TutorWaco 240-AWaco UEC
Waco UICWaco VKS-7Waco QCF-2
   

Continental R-670-k Specifications:

  • Type: Seven cylinder air-cooled radial
  • Bore: 5 1⁄8 in (130.2mm)
  • Stroke: 4 5⁄8 in (117.5mm)
  • Displacement: 668 cu in (10.94 L)
  • Length: 31.2 in (792mm)
  • Diameter: 42.50 in (1,079.5mm)
  • Dry weight: 460 lbs (209 kg)
  • Valve-train: 1 inlet and 1 exhaust valve per cylinder
  • Fuel system: Single Stromberg Carburettor
  • Fuel type: 65 octane
  • Cooling system: air
  • Power output: 225 hp at 2,175 rpm
  • Compression ratio: 5.4:1
  • Power-to-weight ratio: 0.49 hp/lb at cruise speed
 

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Continental R-670 Aircraft Engine picture and Specifications

 

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