NS is looking at adapting the Emerald 116A unmanned transport into an unmanned long-endurance patrol and surveillance drone aimed at the export market. The project is known as the Sentinel USV, though this is just a design study project name and so can change. The Sentinel would be intended to support Pentekonter Protector patrol ships and similar and offer an affordable force multiplier and patrol ship for smaller space navies.
An NS source said that some potential customers have been approached with the Sentinel USV concept and their feedback would be fed into any potential future product offering.