A video inadvertently shared by Naval Surface Warfare Center, Carderock Division, showed a hydrofoil-like vessel zooming at high speed while riding on foils. The video was taken down shortly afterward, but on April 8, the Twitter account @lfx160219 uploaded the post seen above to Twitter.
— 笑脸男人 (@lfx160219) April 8, 2019
NSWC Carderock Division is one of several U.S. Navy research and development facilities. While NSWC Dahlgren works on guns, particularly the Navy’s railgun system, and NSWC Crane is known for developing small arms, Carderock works on ships. The video in question had been shared by NSWC Carderock to YouTube. The GIF in the tweet clearly shows a hydrofoil-type ship, but the Navy was not known to operate any hydrofoils at this time.
This new video seems to show a small ship, about the size of a speedboat. The hull appears largely featureless, and the ship has what appears to be a radar/sensor mast sticking out from the rear.
It’s unclear what this ship represents or what plans the Navy has for hydrofoils. It bears a strong resemblance to the ships in this video, spotted in Virginia Beach, Virginia, in 2011. Virginia Beach is the home of U.S. Naval Special Warfare Command.