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    The KC-46A Pegasus deploys the centerline boom for the first time Oct. 9, 2015. The boom is the fastest way to refuel aircraft at 1,200 gallons per minute. (Boeing photo/John D. Parker)

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    A KC-46 Pegasus took to the skies for its first flight at Paine Field in Everett, Wa., Sept. 25, 2015. (U.S. Air Force photo/Jet Fabara)

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    The KC-46A Pegasus performs its first-ever aerial refueling Jan. 24, 2016, passing 1,600 pounds of fuel to an F-16 Fighting Falcon. (Boeing photo/Paul Weatherman

What's New?

On December 22, 2016, the U.S. Air Force published a Notice of Intent to prepare an Environmental Impact Statement (EIS) for the KC-46A Main Operating Base #4 (MOB 4) Beddown. The Notice of Intent initiated the public scoping period, which ended on February 3, 2017. Comments received during the public scoping period will be considered during development of the Draft EIS. Please visit the About and Get Involved pages for more information. After the Draft EIS is published, additional comments will be accepted on the Provide Comments page.


Welcome to the U.S. Air Force’s website for the KC-46A Main Operating Base #4 (MOB 4) Beddown. This website is the U.S. Air Force’s online center for the public to learn about and become involved in the KC-46A MOB4 Beddown Environmental Impact Statement (EIS) process. The U.S. Air Force encourages the public and interested parties to review the information and documents provided on this website and participate in the EIS process.