The SR-71 Blackbird is still the fastest manned, air-breathing aircraft ever made. It travelled at three and a half times the speed of sound and could fly at altitudes of 85,000 ft. To achieve that it needed a power to weight ratio never before seen in an aircraft. The team at Lockheed’s Skunk Works turned to a newly developed group of materials. Titanium alloys.
The SR-71 pioneered the use of titanium alloy in the aerospace industry. 92% of this aeroplane was constructed from this material which gave it an insane power to weight ratio. The material choice was instrumental in allowing this incredible machine to fly at mach 3.5
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