Leidos Holdings, Inc. (LDOS) recently revealed that its sea systems team has developed Sea Dart, an uncrewed underwater vessel (UUV). Sea Dart is a high-performance, affordable, flexible and adaptable vessel and is intended to support the U.S. Navy and commercial clients in a variety of operations.A Note on Sea Dart UUV Sea Dart is currently available in two standard diameters — six and nine inches — and can be transported by one or two people. Leidos' Sea Dart UUV can help with counter-mine operations, und ...