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At approximately 07:45 Lockard switched off his radar to ride back to his base for breakfast. [3] Exhausted from working a 14-hour shift, McDonald elected to contact Wheeler Field from the orderly tent next to his tent overlooking Pearl Harbor. However, the orderly tent's Sergeant was using it.
It is also known as the Pearl Harbor Radar, since it was an SCR-270 set that detected the incoming raid about 45 minutes before the 7 December 1941, attack on Pearl Harbor commenced. Two versions were produced, the mobile SCR-270, and the fixed SCR-271 which used the same electronics but used an antenna with somewhat greater resolution.
The Opana Radar Site is a National Historic Landmark and IEEE Milestone that commemorates the first operational use of radar by the United States in wartime, during the attack on Pearl Harbor. It is located off the Kamehameha Highway just inland from the north shore of Oahu, Hawaii, south of Kawela Bay. It is not open to the public.
Over 80 years later, Dec. 7, 1941 is a date that still lives in infamy. The attack on Pearl Harbor launched the United States into World War II and left an indelible scar on the American psyche ...
The air raid on Pearl Harbor, which was launched from aircraft carriers, resulted in the U.S. entering the war on the side of the Allies on the day following the attack. The Japanese military leadership referred to the attack as the Hawaii Operation and Operation AI, [nb 4] and as Operation Z during its planning.
The raid was planned to coincide with the full moon to illuminate the Pearl Harbor target area, but the actual date of execution would depend on calm weather for refueling at French Frigate Shoals and clear skies over Pearl Harbor. [4] If the first raid was successful, additional raids would be made. [3]
The Japanese attack on the U.S. Naval Base at Pearl Harbor destroyed almost 200 U.S. aircraft, took 2,400 lives, and swayed Americans to support the decision to join World War II.
United States electronic attack warning began with a 1939 networking demonstration at Twin Lights station NJ, and 2 SCR-270 radar stations during the August 1940 "Watertown maneuvers" (NY). When "Pearl Harbor was attacked, [there were 8 CONUS] early-warning stations" (ME, NJ, & 6 in CA), [3] and Oahu's Opana Mobile Radar Station had 1 of 6 SCR ...