a3_cee5614_2011_sol

a3_cee5614_2011_sol - CEE 5614: Analysis of Air...

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Fall 2011 Assignment 3: Air Transportation Systems Analysis Date Due: September 26, 2011 Instructor: Trani Problem 1 An airline is evaluating two aircraft to operate flights from LaGuardia Airport in New York. The following table shows two two aircraft proposed by airline executives to operate from LGA. The critical stage lengths the airline would like to fly with the selected aircraft are: a) LGA-SAN and b) LGA-DFW. Table 1. Aircraft Considered in an Airline Evaluation. Aircraft Considered Boeing 757-200 with Rolls-Royce RB-211-535C engines. Aircraft maximum design taxi weight is 221,000 lb. 176 seats in two-class layout. Boeing 737-900ER (no winglets and no extended range fuel tanks) powered by two CFM56-7B26/-7B27 ENGINES AT 26,000 LB SLST ). Aircraft maximum design taxi weight is 188,200 lb. The aircraft has 170 seats in a two-class layout. The airline would like to request your services to help them select among the two aircraft to start operations from LGA. The design airport temperature used should be the average of the high temperatures of the hottest month of the year. You can query these averages for any airport at: http://www.weather.com/outlook/travel/businesstraveler/wxclimatology/monthly/graph/LGA:9 More detailed information about the airport can be found at the AIRNAV database available on the web at: http://www.airnav.com/airports/ or visit the airport site. In your analysis use the latest version of the Boeing documents for airport design (http://128.173.204.63/ courses/cee5614/sites_ce_5614.html#Aircraft_Data). a) Find the average stage length to be flown between each one of the critical OD airport pairs. In your analysis use the Great Circle Flight Path mapper link provided in our interesting web sites. Add 7% to the distances calculated to account for real Air Traffic route conditions and to account for possible weather deviations from the optimal Great Circle flight path. b) Find the runway length needed for each one of the aircraft operating the two routes. Determine if LGA has enough runway length to support these flights. c) Estimate the average fuel per passenger assuming a load factor of 0.85 (85% of the seats used) for both routes. d) Considering various factors which aircraft is the best for this airline? Explain.
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a3_cee5614_2011_sol - CEE 5614: Analysis of Air...

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