| 词条 | Wright Cyclone series | ||||||||||||||
| 释义 |
BackgroundThe Wright Aeronautical Corporation was formed in 1919, initially to develop liquid-cooled Hispano-Suiza V8 engines under license. The Corporation’s first original design, the R1, was also the first successful high-powered radial in the USA. Funded by contracts from the US Navy for new air-cooled radials, Wright started a new design (initially called the P2) in 1924. The resignation of Frederick Rentschler to form the Pratt & Whitney Aircraft Company, along with several key engineering personnel, seriously affected the development of the P2 and it did not go into production. Cyclone familyR-1300 Cyclone 7{{see also|Wright R-1300 Cyclone 7}}R-1750 Cyclone 9A new design was launched in 1926, known as the R-1750 Cyclone. This was a nine-cylinder radial with a displacement of 1750 cu in and internally cooled exhaust valves. It was type-tested at 500 hp in 1927.[2] R-1820 Cyclone 9{{see also|Wright R-1820 Cyclone}}In 1932, the R-1750 was developed to a capacity of 1823 cu in. This was the F model Cyclone, designated R-1820. This engine introduced a forged aluminium crankcase and was developed through the 1930s to reach 890 hp. It used a General Electric supercharger, and Wright concluded that this feature limited the potential power output of the engine. For the next development, the G-Series of 1937, Wright developed its own single-speed supercharger. The G-series was developed to deliver 1200 hp at 2500 rpm and made up the bulk of R-1820 Cyclone production during World War 2. It was installed in the Boeing B-17 Flying Fortress. The final phase of development of the single-row radial design was the H-Series at 1350 hp. A licensed variant was developed as the Shvetsov M-25. R-2600 Cyclone 14 (Twin Cyclone){{see also|Wright R-2600 Twin Cyclone}}Wright went on to develop two-row engines with 14 cylinders in two rows of seven, called the Cyclone 14, R-2600. This was installed in the Boeing 314, Grumman TBM/TBF Avenger, North American B-25 Mitchell, and some models of the Douglas A-20 Havoc (RAF Boston). R-3350 Cyclone 18 (Duplex Cyclone){{see also|Wright R-3350 Cyclone 18}}The penultimate Cyclone development was the 18-cylinder engine R-3350, named the Duplex Cyclone or Cyclone 18. Among other applications, it was installed in the Boeing B-29 Superfortress, Douglas A-1 Skyraider, Lockheed P-2 Neptune, and Lockheed C-121 Constellation. In commercial applications it stayed in production until 1957. R-4090 Cyclone 22{{see also|Wright R-4090 Cyclone 22}}An experimental 22-cylinder two-row radial intended to compete with the large Pratt & Whitney radial engines. Three prototypes are known to have been built, but development was abandoned to allow resources to be used for the R-3350 development programme.[3] See also
References1. ^{{cite journal|magazine=Flying Magazine|date=August 1945}} {{Wright aeroengines}}{{DEFAULTSORT:Wright Cyclone Series}}2. ^{{cite book |title=Jane's all the World's Aircraft 1928 |editor1-last=Grey |editor1-first=C.G. |year=1928 |publisher=Sampson Low, Marston & company, ltd |location=London |page=66d}} 3. ^{{cite web|last1=Pearce|first1=William|title=Wright Aeronautical R-4090 Cyclone 22|url=https://oldmachinepress.wordpress.com/2013/03/22/wright-aeronautical-r-4090-cyclone-22/|website=oldmachinepress.wordpress.com|accessdate=24 September 2015|date=22 March 2013}} 3 : Aircraft air-cooled radial piston engines|Aircraft piston engines 1920–1929|Wright aircraft engines |
||||||||||||||
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。