Comment on 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 i...
You can hear Brian Schul tell it himself: youtu.be/8AyHH9G9et0?si=5aes_aeiIT3bIlsX
So cool, thanks for sharing
AeroNaut@lemmy.world 10 months ago
So cool, thanks for sharing