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[ pdf ] Civil Jet Engines Technology Speed

Civil Jet Engines Technology Speed Download
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Topic under  Turbine
Source: www.techzoom.net 
File size: 93.24 KB
File type: pdf
Last download on: Sat May 05, 2018 11:23:50 PM
Short Desciption:
Abstract. In this paper, the speed of technology of civil jet engines is investigated. A fundamental limit is found to exist by the second law of thermodynamics, but it is not reached yet. A technology measure based on airplane efficiency is derived and applied to jet airlines of different sizes and time periods, ranging back to the 1960ís.

Summary:
Airplanes from several manufacturers in several variants have been considered. The year of first appearance on the market was decisive. The oldest airliner is the Boeing 707-120 from 1957, the newest the Airbus 380-841 from 2005. Table 1 contains a list of all airplanes, with the calculated APK. In Figure 3, the data samples are plotted, along with a polynomial least-squares fitted curve.
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