“Wright R-2600 Twin Cyclone”的意思、由来-开放百科全书

词条

Wright R-2600 Twin Cyclone

释义

History
Variants
Applications
Specifications (GR-2600-C14BB)
See also
References
Notes Bibliography

name = R-2600

image = File:Wright R-2600 1.jpg

caption = Wright R-2600 Cyclone radial engine
}}{{Infobox Aircraft Engine

type= Radial engine

manufacturer= Wright Aeronautical

national origin= United States

first run= 1935

major applications= Curtiss SB2C Helldiver
Douglas A-20 Havoc
Grumman TBF Avenger
North American B-25 Mitchell

number built = >50,000

program cost =

unit cost =

developed from = Wright R-1820

developed into =

variants with their own articles =
}}

The Wright R-2600 Cyclone 14 (also called Twin Cyclone) was an American radial engine developed by Curtiss-Wright and widely used in aircraft in the 1930s and 1940s.

History

In 1935, Curtiss-Wright began work on a more powerful version of their successful R-1820 Cyclone 9. The result was the R-2600 Twin Cyclone, with 14 cylinders arranged in two rows. The {{convert|1,600|hp|kW PS|lk=on|abbr=on}} R-2600-3 was originally intended for the C-46 Commando (being fitted to the prototype CW-20A) and was also the original engine choice for the F6F Hellcat; a running change (one which would not stop production) for the CW-20A, and one in late April 1942 for the second XF6F-1, led to the adoption of the {{convert|2,000|hp|kW PS|abbr=on}} Pratt & Whitney R-2800 in its place for both designs. The Twin Cyclone went on to power several important American-designed World War II aircraft, including the A-20 Havoc, B-25 Mitchell, TBF Avenger, SB2C Helldiver, and PBM Mariner.

Over 50,000 R-2600s were built at plants in Paterson, New Jersey, and Cincinnati, Ohio.

Variants

R-2600-1 - 1,600 hp (1,194 kW)
R-2600-3 - 1,600 hp (1,194 kW)
R-2600-6 - 1,600 hp (1,194 kW)
R-2600-8 - 1,700 hp (1,268 kW)
R-2600-9 - 1,700 hp (1,268 kW)
R-2600-12 - 1,700 hp (1,268 kW)
R-2600-13 - 1,700 hp (1,268 kW)
R-2600-19 - 1,600 hp (1,194 kW), 1,660 hp (1,237 kW)
R-2600-20 - 1,700 hp (1,268 kW), 1,900 hp (1,420 kW)
R-2600-22 - 1,900 hp (1,420 kW)
R-2600-23 - 1,600 hp (1,194 kW)
R-2600-29 - 1,700 hp (1,268 kW), 1,850 hp (1,380 kW)
GR-2600-A5B - 1,500 hp (1,118 kW), 1,600 hp (1,194 kW), 1,700 hp (1,268 kW)
GR-2600-A71 - 1,300 hp (969 kW)
GR-2600-C14 - 1,750 hp (1,304 kW)

Applications

Boeing 314 Clipper
Brewster SB2A Buccaneer
Curtiss SB2C Helldiver
Douglas A-20 Havoc
Douglas B-23 Dragon
Grumman F6F Hellcat (XF6F-1 & -2 prototypes only, pre-April 1942)
Grumman TBF Avenger
Lioré et Olivier LeO 451
Martin Baltimore
Martin PBM Mariner (versions prior to Double Wasp-powered PBM-5)
Miles Monitor
North American B-25 Mitchell
Vultee A-31 Vengeance

Specifications (GR-2600-C14BB)

{{pistonspecs
|
|type=14-cylinder supercharged air-cooled two-row radial engine
|ref=Jane's.^[1]
|bore=6 {{frac|1|8}} in (155.6 mm)
|stroke=6 {{frac|5|16}} in (160.3 mm)
|displacement=2,604 in³ (42.7 L)
|length=62.06 in (1,576 mm)
|diameter=55 in (1,397 mm)
|width=
|height=
|weight=2,045 lb (930 kg)
|valvetrain=Two pushrod-actuated valves per cylinder with sodium-cooled exhaust valve
|supercharger=Single-stage two-speed centrifugal type supercharger, impeller diameter 11 in (280 mm), blower ratio 7.06:1 at slow speed and 10.06:1 at high speed
|turbocharger=
|fuelsystem=Stromberg PR48A downdraft carburetor with automatic mixture control
|fueltype=
|oilsystem=Dry sump with one pressure pump and two scavenge pumps
|coolingsystem=Air-cooled
|power=

1,750 hp (1,305 kW) at 2,600 rpm at 3,200 ft (975 m) military power
1,450 hp (1,080 kW) at 2,600 rpm at 15,000 ft (4,575 m) military power

|specpower=0.67 hp/in³ (30.6 kW/L)
|compression=6.9:1
|fuelcon=
|specfuelcon=
|oilcon=
|power/weight=0.86 hp/lb (1.40 kW/kg)
}}

References

Notes

1. ^Jane's 1998, p. 317.
2. ^Witold Liss (1967). The Lavochkin La 5 & 7, number 149. Profile publications Ltd., P.O. Box, 1a North Street, Leatherhead, Surrey, UK. p. 3

Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines: From the Pioneers to the Present Day. 5th edition, Stroud, UK: Sutton, 2006. {{ISBN|0-7509-4479-X}}
White, Graham. Allied Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II. Warrendale, Pennsylvania: SAE International, 1995. {{ISBN|1-56091-655-9}}
Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1998. {{ISBN|0-517-67964-7}}

3 : Radial engines|Wright aircraft engines|Aircraft piston engines 1930–1939

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