a4_cee5614_2011_sol

# a4_cee5614_2011_sol - CEE 5614: Analysis of Air...

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CEE 5614: Analysis of Air Transportation Systems Fall 2011 Assignment 4: Air Transportation Systems Analysis Date Due: October 17, 2011 Instructor: Trani Problem 1 The National Airspace System is a complex system with thousands of commercial flights each day. The file nasOperations_2011.xls contains a sample of the activities that happened in the NAS on December 20, 2008. The header and a few flights are illustrated in Table 1. Table 1. Sample NAS Flights File. Examine operations in the NAS performed using wide-body transport aircraft represented by the Boeing 767 family (models B762, B763, B764 and B767) and Airbus A330 family represented by the following models: A330, A332, and A333. a) Find cruise flight levels assigned to all modern wide-body aircraft stated above and establish a possible correlation between cruise flight level and distance flown. Plot and find the best fit model. Explain the trends observed. Figure 1. Plot of Cruise Altitude vs Distance Flown for Boeing 767 Family of Aircraft. CEE 5614 A4 Trani Page 1 of 10

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Discussion: Only data in the first 500 nm miles seems to follow a pattern. The rest of the data is quite random and a good model cannot be developed. b) For the aircraft fund in Part (a), create a histogram representing the stage length flown by the aircraft vs frequency of operations flying a given range of distances. I suggest you partition the range of distances into 15-30 bins. Figure 2. Histogram of Distances Flown by Boeing 767-300 Aircraft. Mean distance flown is 3,006 nm. c) Compare the histogram of distance flown by wide bodies and compare to that of the Boeing 777 family (B772, B77W and B773). Comment on the difference observed. CEE 5614 A4 Trani Page 2 of 10
Figure 3. Histogram of Distances Flown by Boeing 777-200 Aircraft. Mean distance flown is 4,581 nm. CEE 5614 A4 Trani Page 3 of 10

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Problem 2 Use the large twin-engine transport aircraft performance file provided in the Matlab files for CEE 5614 ( http://128.173.204.63/courses/cee5614/cee5614_pub/boeing777_class_2006.m ) to answer the following questions. An airline wants to fly the route ATL-LFPG (Paris) with the aircraft. The route is 3,878 nm in Great Circle
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## This note was uploaded on 12/31/2011 for the course CEE 5614 taught by Professor Staff during the Fall '10 term at Virginia Tech.

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a4_cee5614_2011_sol - CEE 5614: Analysis of Air...

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