Sentinel family of unmanned surface vessels

The Sentinel was a family of unmanned surface vessels (USV) that could be configured for military, law enforcement and commercial applications. It was available on 16-ft (5-m), 20-ft (6-m), 23-ft (7-m) and 36-ft (11-m) platforms. The manufacturer has demonstrated the system's autonomous and remote operation capabilities. It does not appear to have been used in anything other than a testing and demonstration capacity.

The vessels had foam-cored, unsinkable fiberglass or composite...