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U.S. Air Force Airmen from the 18th Logistics Readiness Squadron hot pit refuel a F-15C Eagle with the Versatile Integrating Partner Equipment Refueling (VIPER) kit for the first time at Kadena Air Base, Japan, June 24, 2022. The VIPER kit is a universal system that can be outfitted with multiple adapters to refuel varying airframes, pushing the envelope of U.S. Air Force refueling capabilities.