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Pratt and Whitney R 2180 E Twin Wasp E

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Pratt & Whitney R-2180-E Twin Wasp E

The Pratt & Whitney R-2180-E Twin Wasp E was a radial aero engine developed in the United States by Pratt & Whitney. It had two rows of seven cylinders each. Its only production application was on the post-Second World War Saab 90 Scandia airliner.

Contents

Design and development

The R-2180-E is effectively a fourteen-cylinder simplification of the twenty-eight cylinder R-4360 Wasp Major engine; its cylinders are the same size and displacement as the Wasp Major.

The R-2180-E Twin Wasp E was available in a 'power egg' installation certificated in 1945 for use as an engine upgrade for the Douglas DC-4.

Applications

  • Piasecki YH-16A
  • Saab 90 Scandia
  • Specifications (R-2180-E1)

    Data from

    General characteristics

  • Type: 14-cylinder, supercharged, air-cooled, twin-row radial engine
  • Bore: 5.75 in. (146 mm)
  • Stroke: 6.00 in. (152 mm)
  • Displacement: 2,181 inĀ³ (35.7 L)
  • Length: 76.20 in (1.94 m)
  • Diameter: 54 in (1.37 m)
  • Dry weight: 1,870 dry (850 kg)
  • Components

  • Fuel system: Stromberg AR-48C1
  • Fuel type: 100/130 octane
  • Cooling system: Air-cooled
  • Performance

  • Power output: 1,500 hp take-off; 1,400 hp continuous
  • Compression ratio: 7:1
  • References

    Pratt & Whitney R-2180-E Twin Wasp E Wikipedia


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