During the 1960's, 70's & 80's the Hydrographic Service of the Royal Navy commissioned three new Inshore Survey Craft - 'ECHO', 'EGERIA' & 'ENTERPRISE' - for the task of surveying the estuaries & coastal areas of the east coast of England. Not surprisingly they spent almost all their working lives based at Chatham. They worked a long hard season from April to October each year almost entirely away from their base and returned to spend the winter months there in maintenance.
