<prompt> Ngwala tšwetšopele ya serapa se - Ka October 31, 1956, Sturtevant e ile ya tsena ka Philadelphia Naval Shipyard bakeng sa go fetolelwa go ba sekepe sa go felegetša bahlapetši ba radar. Tshepedišo ya go fetoša e tšere go fihla ka 5 Oktoboro 1957, ge a be a bušetšwa gape go šoma bjalo ka DER-239. Ka February 7, 1958, o ile a tloga Philadelphia, Pennsylvania, a leba Lewatleng la Pacific, a ema Newport, Rhode Island; San Juan, Puerto Rico; Rodman  <response>: E ile ya ya Panama Canal Zone; Acapulco, Mexico; le San Diego, California, pele e fihla Pearl Harbor ka March 18. Ka morago ga go fetša tlwaetšo e oketšegilego kua Hawaii, o ile a ba o mongwe wa dikepe tša mathomo tša Pacific Early Warning Barrier. 