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Continue to ChatBoeing, U.S. Air Force Complete GPS IIF Constellation https://aviationnews.eu/news/2016/02/boeing-u-s-air-force-complete-gps-iif-constellation/
Boeing, U.S. Air Force Complete GPS IIF Constellation https://aviationnews.eu/news/2016/02/boeing-u-s-air-force-complete-gps-iif-constellation/