@BOOK{NAP5917, author = "National Research Council", title = "Aging of U.S. Air Force Aircraft: Final Report", isbn = "978-0-309-05935-0", doi = "10.17226/5917", abstract = "Many of the aircraft that form the backbone of the U.S. Air Force operational fleet are 25 years old or older. A few of these will be replaced with new aircraft, but many are expected to remain in service an additional 25 years or more. This book provides a strategy to address the technical needs and priorities associated with the Air Force's aging airframe structures. It includes a detailed summary of the structural status of the aging force, identification of key technical issues, recommendations for near-term engineering and management actions, and prioritized near-term and long-term research recommendations.", url = "https://nap.nationalacademies.org/catalog/5917/aging-of-us-air-force-aircraft-final-report", year = 1997, publisher = "The National Academies Press", address = "Washington, DC" }