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to San Diego, by using a Hybrid Electric Drive engine (HED) while traveling at speeds of 10 knots or less. Over the rest of the ship's lifetime, using the HED will save approximately $250 billion (as- suming a static fuel price). e engine used on Makin Island was the prototype for HEDs being installed on the Na- vy's destroyers over the next six years. Arleigh-Burke class guided missile destroyers – the mainstay of the surface force with more than 60 ships – operate at speeds below 12 knots approximately 50% of the time. By stretching the fuel supply, HEDs also give the destroyers the capability to go far- ther without refueling – which allows the destroyers to stay on mission longer. The Great Green Fleet GOAL 2: "DoN will demonstrate a Green Strike Group in local operations by 2012 and sail it by 2016." STATUS: Accomplished. On Jan. 20, 2016, the USS John C. Stennis Carrier Strike Group (JCS CSG) deployed along with the guided missile destroyer USS Stock- dale (DDG 106) -- the first U.S. Navy ship to run on an alternative fuel blend as part of its regular operations. e rest of the CSG's surface ships were resupplied with alternative fuel shortly thereaer. at alternative fuel was a blend of 90% marine diesel and 10% waste beef fat – tallow – purchased through a partnership between the DoN and the U.S. Department of Agriculture (USDA). Secretary Mabus and Agri- culture Secretary Tom Vilsack both attended the ceremony marking the deployment and pointed out the program's benefits. Mabus spoke first, saying, "Diversifying our energy sources arms us with operational flexibility and strengthens our ability to provide presence, turning the tables on those who would use energy as a weapon against us." Vilsack followed with, "the Navy's use of renewable energy … represents its ability to diversify its energy KELLY SCHINDLER "The Great Green Fleet shows how we are transforming our energy use to make us better warfighters, to go farther, stay longer and deliver more firepower." SECNAV Mabus, Jan. 20, 2016 25 Association of the United States Navy A T-45C Goshawk train- ing aircraft assigned to the Salty Dogs of Air Test and Evaluation Squadron (VX) 23, Patuxent River, Md., conducts a test flight using a biofuel blend of JP-5 jet fuel and plant- based camelina.

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