181005-M-CQ544-0448 SAN FRANCISCO (Oct. 5, 2018) The Blue Angels perform a six-plane formation during the San Francisco Fleet Week Air Show, Oct. 5, 2018. The Blue Angels team was formed in 1946, making it the second oldest formal flying aerobatic team in the world. Since 1981, San Francisco Fleet Week is a public event taking place every October, becoming a significant and integral part of the city’s local culture and economy. San Francisco Fleet Week 2018 events will take place through Oct. 8. (U.S. Marine Corps photo by Lance Cpl. Quentarius Johnson/Released)