Pratt & Whitney R-1535

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The Pratt & Whitney R-1535 Twin Wasp Junior was an engine used in American aircraft in the 1930s. The engine was first introduced in 1932. It was a two-row, 14-cylinder air-cooled radial design. Displacement was 1,535 cubic inches (25.2 liters); bore and stroke were 5-3/16" and 5-3/16" (131.8 mm and 131.8 mm).

Contents

[edit] Models

  • R-1535: 700 hp (521 kW)
  • R-1535-13: 825 hp (615 kW)

[edit] Specifications (R-1535-13)

General characteristics

  • Type: 14-cylinder air-cooled two-row radial engine
  • Bore: 5.1875 in (131.8 mm)
  • Stroke: 5.1875 in (131.8 mm)
  • Displacement: 1,535 in³ (25.2 L)

Components

  • Cooling system: Air-cooled

Performance

  • Power output: 825 hp (615 kW)
  • Specific power: 0.54 hp/in³ (24.4 kW/L)

[edit] Aircraft which used R-1535

[edit] Related contents

[edit] External links