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submitted 10 months ago by L4s@lemmy.world to c/technology@lemmy.world

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...::undefined

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[-] Mango@lemmy.world 13 points 10 months ago

Surely that's not what's impressive about it? We can already do that right?

[-] maryjayjay@lemmy.world 3 points 10 months ago
[-] jettrscga@lemmy.world 18 points 10 months ago* (last edited 10 months ago)

I feel like I'm taking crazy pills.

The speed of sound is 343 m/s, 767 mph. This description is Mach 5, 5x the sound barrier.

An F-22 can go 1500 mph.

Apparently the first airplane to break the sound barrier was Bell X-1 in 1947.

[-] SwampYankee@mander.xyz 7 points 10 months ago

I think the intention is to highlight it as a milestone in the development of this aircraft. If you read the article, sounds like it hasn't even been on a test flight yet.

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this post was submitted on 03 Jan 2024
212 points (94.2% liked)

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