“SEA, the UK’s defence and security electronic system specialist, has completed successful trials of its anti-submarine warfare (ASW) thin line towed array, KraitArray, in the English Channel – proving its exceptional sensing performance in small vessels.”
This seems to be another example of an ASW system being marketed for unmanned vessels that might also be used on cutters if the need should arise.
The company’s brochure does in fact specifically mention patrol craft and OPVs that are unable to accommodate full size towed arrays. In addition to the towed array, they also make active sonar systems, acoustic decoys, and light weight torpedo launchers.
A towed array might also be a good way to search for low profile smuggling vessels that have a minimal visual and radar cross section.