- Uncrewed
General Dynamics and U.S. Navy introduce model of unmanned, minehunting, undersea vehicle
NATIONAL HARBOR, Md. 17 April 2012. Representatives from the U. S. Navy's Program Executive Office, Littoral Combat Ships Unmanned Maritime Systems Program Office and General Dynamics unveiled a quarter-scale model of the Surface Mine Countermeasure Unmanned Undersea Vehicle (SMCM UUV), named "Knifefish," at the Navy League's Sea-Air-Space Exposition being held at the Gaylord National Resort.