Why did the Royal Navy build only two Echo-class multi-role survey ships?
Short answerCost-driven consolidation replaced work once spread across roughly ten survey and patrol vessels with only a few hulls, sacrificing geographic presence and resilience.
NotesThe Royal Navy's late-1980s survey force was much larger than the fleet available by 2022. Better sensors cannot place one hull in several regions at once, and survey ships also support mine warfare, amphibious routes, and submarine access. Sending raw data home may reduce platform cost, but in a peer conflict satellite links can be jammed or denied. Onboard processing therefore has operational value as well as technical cost, because a ship that cannot return or interpret its observations may be unable to support the force around it.