Planes That Changed the World Miniseries Episode 3 SR-71 Blackbird - Hypersonic Surveillance 2015
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Lockheed were tasked with creating a plane invisible to Russian radar, capable of reaching an altitude of 80,000 ft and speeds of Mach 3.2.
- Released: 2015-04-07
- Runtime: 46 minutes
- Genre: Documentary
- Stars:
- Director: Tom Brisley, Alison Turner
