2007年8月3日,美国诺思罗普·格鲁曼公司完成了E-2D“高级鹰眼”舰载预警机的首次试飞,这种1964年就进入现役的机种又被注入了新的活力。首次试飞在诺思罗普公司的圣奥古斯丁试验场进行,共持续了1.3小时。据美国海军航空系统司令部的“鹰眼”项目主管里赫上校介绍,“首次试飞的‘德尔塔-1’号主要是测试飞机的适航性和在航母上进行移动的情况。这次试飞标志着该预警机在经过4年的设计、开发和地面测试后已经正式进入实际应用阶段。” On August 3, 2007, Northrop Grumman of the United States completed the first test flight of the E-2D “Advanced Hawkeye” carrier-based early warning aircraft, which was re-introduced into service in 1964 New vitality. The first test flight took place at Northrop’s St. Augustine test site for a total of 1.3 hours. According to Colonel Lech, head of the Hawkeye Project at the Naval Air Systems Command, “the Delta-1 was the first flight to test the airworthiness of the aircraft and its movement on aircraft carriers. The test flight marks the official arrival of the AWACS in the practical application stage after four years of design, development and ground testing. ”