SR-72: US secret hypersonic jet to allegedly break sound barrier in 2025
interestingengineering.com
Widely reported as the fastest plane ever developed, Lockheed Martin's SR-72 "Son of Blackbird" will test the claim sometime in 2025.
This is an automated archive made by the Lemmit Bot.

The original was posted on /r/technology by /u/chrisdh79 on 2024-01-02 21:03:29.

Original Title: SR-72: US secret hypersonic jet to allegedly break sound barrier in 2025 | Believed to be a top-secret project of the US Air Force, the SR-72 is touted to reach over 4,000 mph (6,437 kph), making it the fastest plane ever developed.