[ad_1] The Cooper Vane is a security device installed on aircraft with built-in aerial stairs to prevent hijackers from escaping mid-air. It was inspired by a hijacker named DB Cooper who escaped using the rear aerial ladder of a Boeing 727 in 1971. The device is mandated by the Federal Aviation Administration and consists of […]
[ad_1] In 1971, DB Cooper hijacked a plane and demanded parachutes and money before jumping out of the aircraft and disappearing. The FBI continues to investigate the case, but Cooper’s true identity and fate remain unknown. The case led to reforms in the airline industry, including the creation of the Cooper vane. DB Cooper is […]
