Lockheed Martin’s highly anticipated uncrewed hypersonic aircraft, the SR-72 “Son of Blackbird,” is allegedly scheduled to take its first flight in 2025. Believed to be a top-secret project for the United States Air Force (USAF), the SR-72 is touted to reach over 4,000 mph (6,437 kph), making it the fastest plane ever developed. Its role will likely include activities similar to those of its veteran predecessor, the venerable SR-71 “Blackbird.”
A fine pedigree
The SR-72 is widely considered the natural successor of the SR-71 “Blackbird,” which set speed records in 1974 and was retired by the…
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News Source: interestingengineering.com