TL;DR: In this article, an econometric analysis of the influences of airline characteristics on the average operating costs per aircraft movement is presented, and the results confirm the existence of economies of density, economies of load factor, aircraft utilisation and economies of aircraft size.
TL;DR: In this paper, the history of all jet aircraft operated by commercial passenger or cargo airlines world-wide is analyzed both in general terms and using these measures, and the analysis shows that uniformity in airline fleets has been steadily decreasing, while their scale had been steadily increasing.
TL;DR: In this paper, the effect of fleet commonality on operating performance of low-cost airlines was investigated and the role of fleet size and route length variations on this relationship was examined.
Abstract: This paper investigates the effect of fleet commonality on operating performance of low-cost airlines. It examines the role fleet size and route length variations on this relationship. Results of an analysis of 28 airlines show that fleet commonality is positively associated with operating performance. Further, fleet size positively affects this relationship, whereas route length variations do not.
TL;DR: In this article, the effect of fleet commonality on operating performance of low-cost airlines was investigated and the role of fleet size and route length variations on this relationship was examined.
TL;DR: In this article, the authors developed three new measures for fleet standardization in order to estimate its impact on airline costs and profitability, and found that fleet standardisation, as expected, leads to lower unit costs.
Abstract: We develop three new measures for fleet standardization in order to estimate its impact on airline costs and profitability. Using panel data for 28 U.S. airlines over the period 1999 to 2009, we find that fleet standardization, as expected, leads to lower unit costs. However, after controlling for the downward effect of standardization on unit cost, fleet standardization is negatively related to profit margin. Our findings provide quantitative evidence of the trade-off between the costs and benefits from fleet commonality. Although it has been widely accepted that airlines can benefit from cost savings in flight operations and maintenance with a more standardized fleet, the potential negative revenue impacts from fleet standardization have generally been overlooked.