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

Technology

59607 readers
3531 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
 

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

you are viewing a single comment's thread
view the rest of the comments
[–] jettrscga@lemmy.world 19 points 10 months ago* (last edited 10 months ago) (2 children)

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.

[–] Balex@lemmy.world 5 points 10 months ago

Looks like the plan is for it to eventually reach speeds over 4000 mph.