USS Calcaterra DER-390

USS Calcaterra is a former Edsall Class Escort. After WWII, during the main stage of Cold War some of the boats were rebuild into Radar Picket Ships. They all formed the Distant Early Warning System around the US to spot any aggression or attack from the air. The upper works were enlarged to get more room for radar offices and crews. A main and foremast were added to carry additional radars sets. The boat had an armament of two radar controlled 3” guns in a small housing, a trainable Mk. 15 Hedgehog and some depth charges.