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In the 1970s, Lockheed’s Skunk Works, under the leadership of Kelly Johnson, surged forward with the concept of low observable technology. The program known as Have Blue, launched in 1976, was designed to develop a military aircraft that could operate undetected by enemy radar systems. The investment in Have Blue, amounting to $10 million during a financially strained period for Lockheed, would eventually yield billions in sales and establish a cutting-edge reputation in military aircraft design.