Diamond Shoals No. 71: The Only US Lightship Sunk by Enemy Action

摘要

One of the most monotonous, arduous and dangerous duties performed by the Coast Guard and one of its predecessors, the US Lighthouse Service,1 was manning stationary vessels positioned in shallow water or near shoals, where, because of the difficult location, it was impossible to build a lighthouse. Quite frequently, these vessels marked the approach to a port or the outer limits of outlying dangers. Occasionally, they were used in inside waters. The primary purpose of a lightship is to serve as a beacon by day, a platform for a light by night, and a sound signal in time of fog. Moreover, with radio equipment, lightships are invaluable relay stations.