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PACIFIC OCEAN (March 6, 2021) A U.S. Marine Corps CH-53 Sea Stallion from the “Wolfpack” of Marine Heavy Helicopter Squadron (HMH) 466 transports a mock F135 engine power module from Nimitz-class aircraft carrier USS Carl Vinson (CVN 70) to Lewis and Clark-class dry cargo ship USNS Richard E. Byrd (T-AKE 4) during a vertical replenishment-at-sea (VERTREP). This exercise was the first aircraft carrier VERTREP of a mock F135 engine power module, which serves as the basis for the single engine of the F-35C Lightning II, the only single-engine fixed-wing jet onboard Vinson and the latest in the Joint Strike Fighter series. Carl Vinson is currently underway conducting routine maritime operations. (U.S. Navy photo by Mass Communication Specialist Seaman Caden Richmond)