Top architect proposes new type of frigate for the Navy The nation’s leading independent naval architectural firm has been quietly gauging whether senior Navy officials are interested in a new class of frigate that would be smaller and lighter replacement for the aging ships now being phased out of service. The new 3,500-ton "light frigates" would be more heavily armed than previous models and be capable of carrying out a variety of missions over a wide area of the world’s oceans. Gibbs & Cox of Arlington, Va., says it has produced concept drawings for a roughly 400-foot steel-hull, twin-propellor, diesel-powered...