Wright R-2600

The Wright R -2600 Cyclone 14 is an air-cooled 14 - Zylindriger multiple radial engine of the U.S. manufacturer Curtiss- Wright. The engine was developed in 1935 and had 14 cylinders in two levels - ie a double radial engine. The Twin Cyclone was one of the most widely used engines in the USA during the Second World War.

Development began in 1935, when it became clear that would open up in terms of performance is a gap between a Wright R -1820 and the Wright R -3350. The result was that from February 1937, manufactured in large series and equipped with a centrifugal compressor R- 2600. The propeller is driven via a reduction gear with a i = 16:9.

The crankshaft consisted of three parts and was mounted on roller bearings. The one-piece Hauptpleuel had a plain bearing. The crankcase was made ​​of forged steel.

It first came to problems with lubrication, but could be overcome with the National Advisory Committee for Aeronautics ( NACA ). Later overheating problems led to an exchange of carburetor against the make Holley. Until February 1944, all R -2600 were produced at the plant in Lockland Cincinnati. A total of 1946 85.374 copies were made ​​of this engine until January.

With this engine, among other things, the Boeing 314, Brewster SB2A, Curtiss SB2C, Douglas A -20 Douglas B -23, Grumman TBF Lioré & Olivier LeO 451, Lockheed B -37, Martin PBM, Martin Baltimore and the North American B were -25 equipped.

Variants and performance

  • R 2600 3-1624 hp
  • R 2600 9-1724 hp
  • R 2600 12-1724 PS
  • R 2600 13-1724 PS
  • R 2600 20-1932 PS
  • R 2600 22-1927 PS
  • R 2600 23-1623 PS
  • R 2600 29-1877 PS
  • R 2600 94-1724 PS
  • GR -2600 - A5B - 1500-1700 PS
  • GR -2600 -A71 - 1300 hp
  • GR -2600 -C14 - 1750 hp

Specifications

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