This mesmerizing effect, known as the "Kopp-Etchells effect," happens when helicopter rotor blades hit dust or sand, generating static electricity and forming a glowing halo, particularly visible at night.
This Day in Aviation History: On July 15, 1975, the first international manned space flight occurred as the Soviet Soyuz 19 and the American Apollo spacecraft launched hours apart. This historic mission marked a significant step in U.S.-Soviet cooperation during the Cold War.
This Day in Aviation History: On February 9, 1969, the Boeing 747, known as the "City of Everett," made its first flight. This event, piloted by Jack Waddell, Brien Wygle, and Jesse Wallick, revolutionized air travel and began the era of jumbo jets.