This Day in U.S. Naval History – December 9
1938 - Prototype shipboard radar, designed and built by the Naval Research Laboratory, is installed on USS New York (BB-34).
1941 - USS Swordfish (SS-193) makes initial U.S. submarine attack on Japanese ship.
1952 - Strike by aircraft from Task Force 77 destroys munitions factory and rail facilities near Rashin, North Korea
(Source: Navy News Service)