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.

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Submitted January 03, 2024 at 01:34AM by chrisdh79 https://ift.tt/LbVUQ02 via TikTokTikk