The story of the men and women who built of the spy satellites dubbed Hexagon, and never told a soul.
It was dubbed “Big Bird” and it was considered the most successful space spy satellite program of the Cold War era. From 1971 to 1986 a total of 20 satellites were launched, each containing 60 miles of film and sophisticated cameras that orbited the earth snapping vast, panoramic photographs of the Soviet Union, China and other potential foes. The film was shot back through the earth’s atmosphere in buckets that parachuted over the Pacific Ocean, where C-130 Air Force planes snagged them with grappling hooks. The scale, ambition and sheer ingenuity of Hexagon KH-9 was breathtaking. The fact that 19 out of 20 launches were successful (the final mission blew up because the booster rockets failed) is astonishing.
So too is the human tale of the 45-year-old secret that many took to their graves.
The designer of the spy satellite KH-9 HEXAGON (more generally known by its nickname “Big Bird”) has finally been able to describe his life’s work.
What surprised me most from this story is the fact that HEXAGON used film to record its images, not some form of digital or electronic technology. The film was returned to Earth in four “re-entry buckets” that were snatched out of the air by a modified C-130 airplane. I had assumed that by the time HEXAGON was launched they had abandoned film. Not so.
Worth a look: The U.S. spy satellite Big Bird, the KH-9 Hexagon, will be on public display for the first time tomorrow, for only one day, in the parking lot of the Air and Space Museum’s Udvar-Hazy Center.