Greater Underwater Propulsion Power Program (GUPPY) being conducted by the United States Navy in the Atlantic Ocean. Aerial views of German submarine U-2513 underway. The submarine submerged in water with submarine snorkeling. Open sea and wake due to the movement of the submarine through water.
Greater Underwater Propulsion Power Program ( GUPPY ) being conducted by the United States Navy in the Atlantic Ocean. Aerial views of German submarine U-2513 underway. The submarine submerged in water with submarine snorkeling. Open sea and wake due to the movement of the submarine through water. The submarine surfaces and moves on water.
Greater Underwater Propulsion Power Program ( GUPPY ) being conducted by the United States Navy in the Atlantic Ocean. Aerial views of German submarine U-2513 underway. The submarine submerged in water with submarine snorkeling. The submarine crash dives under the water surface. It resurfaces and moves on water.
Greater Underwater Propulsion Power Program ( GUPPY ) being conducted by the United States Navy in the Atlantic Ocean. Aerial views of German submarine U-2513 underway. The submarine crash dives below the water surface. The periscope of the submarine cuts through water. The submarine resurfaces and moves on water.
Greater Underwater Propulsion Power Program ( GUPPY ) being conducted by the United States Navy in the Atlantic Ocean. USS Cubera (SS-347) underway in the Atlantic Ocean during GUPPY. Men on the deck of the vessel. USS Corporal(SS-346) underway at sea with its crew on the deck of the submarine.
Greater Underwater Propulsion Power Program ( GUPPY ) being conducted by the United States Navy in the Atlantic Ocean. A United States submarine underway after being modified under GUPPY. The submarine with a marine railway in the foreground.
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