Abstract

The choice of fleet by a given airline must consider different elements associated with both the aircraft and the airports to be operated, making it necessary a method to assist the aircraft choice process. This study assesses the take-off runway distance requirement of different aircraft models and compares the requirement to the take-off runway distance available at a group of airports. Using the Herfindahl-Hirschman index (HHI), the methodology consider the analysis of take-off runway length available on 80 Brazilian airports and compared it to the take-off distance required for 108 combinations of aircraft model, engine model and flight range, considering the take-off performance of the aircraft models with maximum payload weight. In total, 536 routes of four Brazilian airlines has been adopted to simulate the most profitable operating scenario. The result presents the take-off performance of different aircraft models and allows a performance comparison between them. In addition, this research investigates which is the most common flight range in Brazil, and what influence it exerts in the aircraft take-off performance, and contributes to a better match between the aircraft used and the airport operated in fleet optimization.

Highlights

  • Before an aircraft to take-off, an airline flight dispatcher must assess several parameters regarding the aircraft take-off performance

  • This study suggests using the original idea of HHI for a different purpose, by creating an index to assess the capacity of different aircraft models to operate in a group of airports

  • The take-off runway distance required by an aircraft depends on the aircraft’s take-off weight, the air density and aircraft’s take-off performance

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Summary

Introduction

Before an aircraft to take-off, an airline flight dispatcher must assess several parameters regarding the aircraft take-off performance. Four variables are essential to produce such force, and those are airspeed, air density, wing area and coefficient of lift. A flight dispatcher cannot change the aircraft wing area and coefficient of lift since these are manufacturing characteristics. The aircraft cannot keep developing greater speed indefinitely due to the tire speed limitation and, above all, due to the physical length limitation of the take-off runway. Sometimes, this limited available area situation imposes constraints to the aircraft take-off weight. The aircraft will not reach enough speed to produce a lift force greater than its weight within the available runway distance

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