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  2. Delta Air Lines fleet - Wikipedia

    en.wikipedia.org/wiki/Delta_Air_Lines_fleet

    Since 2013, Delta has been working to reduce the age of its fleet by purchasing or leasing newly built aircraft or newer model used aircraft. Since launching the effort, Delta has preferred to purchase aircraft from Airbus, a major change for the company which had been a loyal customer of Boeing and McDonnell Douglas (which merged with Boeing in 1997).

  3. Southwest Air's lackluster profit fuels pressure to revamp ...

    www.aol.com/southwest-airs-lackluster-profit...

    Southwest Airlines, the pioneering low-cost carrier, is facing a campaign by an activist investor to overhaul a business model it says is outdated, putting pressure on CEO Robert Jordan and ...

  4. U.S. Army Corps of Engineers Bay Model - Wikipedia

    en.wikipedia.org/wiki/U.S._Army_Corps_of...

    Website. Official website. The U.S. Army Corps of Engineers Bay Model is a working hydraulic scale model of the San Francisco Bay and Sacramento-San Joaquin River Delta System. While the Bay Model is still operational, it is no longer used for scientific research but is instead open to the public alongside educational exhibits about Bay hydrology.

  5. Delta model - Wikipedia

    en.wikipedia.org/wiki/Delta_model

    Delta model (after the Greek letter Delta, standing for transformation and change) is a customer-based approach to strategic management. [1][2][3] Compared to a philosophical focus on the characteristics of a product (product economics), the model is based on consumer economics. The aim is to create a very strong bond between the company and ...

  6. Delta Air Lines - Wikipedia

    en.wikipedia.org/wiki/Delta_Air_Lines

    Delta Global Staffing (DGS) was a temporary employment firm located in Atlanta, Georgia. Delta Global Staffing was a wholly owned subsidiary of Delta Air Lines, Inc., and a division of the internal company DAL Global Services. Delta Air Lines sold majority ownership of DAL Global Services to Argenbright Holdings on December 21, 2018. As part of ...

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Spoke–hub distribution paradigm - Wikipedia

    en.wikipedia.org/wiki/Spoke–hub_distribution...

    In 1955, Delta Air Lines pioneered the hub-and-spoke system at its hub in Atlanta, Georgia, [3] in an effort to compete with Eastern Air Lines. In the mid-1970s FedEx adopted the hub-and-spoke model for overnight package delivery. After the airline industry was deregulated in 1978, several other airlines adopted Delta's hub-and-spoke paradigm.

  9. Crack growth equation - Wikipedia

    en.wikipedia.org/wiki/Crack_growth_equation

    The Paris–Erdogan equation fits the central linear region of Regime B. A crack growth equation is used for calculating the size of a fatigue crack growing from cyclic loads. The growth of a fatigue crack can result in catastrophic failure, particularly in the case of aircraft. When many growing fatigue cracks interact with one another it is ...