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Air Force Builds Quiet Mach 6 Wind Tunnel

Posted by ScuttleMonkey on from the hold-on-to-your-hat dept.

An anonymous reader writes "To help design 'scramjets' -- vehicles that'll travel thousands of miles per hour as they leave the atmosphere and zip around the globe -- the U.S. Air Force has just funded a wind tunnel that operates quietly at Mach 6. To get a quiet flow, the throat of the Mach 6 nozzle must be polished to a near-perfect mirror finish, eliminating roughness that would trip the flow."

3 of 153 comments (clear)

  1. PC Modding... by __aaclcg7560 · · Score: 0, Offtopic

    The Air Force is designing a quieter PC case? Replacing the 60mm or 80mm fans with 120mm fans should fix the fan noise problem. I think polishing the fan casing to mirror-like quality to reduce air drag is a bit of an overkill unless you like the polished chrome look.

  2. Re:sounds cool by demmer · · Score: 0, Offtopic

    how do posts liek this get score 2?
    he has absolutely no idea what he is talking about and it is not funny.

  3. Re:sounds cool by icepick72 · · Score: 0, Offtopic

    C'mon man, I was going for three in a row. Oh well, can't win them all.