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General control line discussion => Open Forum => Topic started by: Robert Zambelli on October 28, 2012, 12:43:46 PM

Title: Speed of Sound
Post by: Robert Zambelli on October 28, 2012, 12:43:46 PM
Interesting!

  http://www.youtube.com/embed/gWGLAAYdbbc

  Bob Z.
Title: Re: Speed of Sound
Post by: Paul Taylor on October 28, 2012, 01:56:35 PM
Nice find Bob. Thanks for sharing.
Title: Re: Speed of Sound
Post by: Dave Denison on October 28, 2012, 02:47:35 PM
Thanks for a VERY cool physics lesson!  This one my grand daughter really enjoyed.

Regards.

Dave.

ama 41041
Title: Re: Speed of Sound
Post by: Paul Smith on October 28, 2012, 02:56:35 PM
Back in the late 50's early 60's B-58's used to rattle the windows in Indianpolis.  I thought it was pretty cool.  But the Air Force got harrassed away for civilization and when I got in we could only bust mach in remote desert areas.

It appears we've come full circle and people think supersonic cool again.   

It always impresses me that Chuck Yeager did it for the first time in 1948 and only twenty years later students were doing it six months into training.
Title: Re: Speed of Sound
Post by: George on October 28, 2012, 02:59:53 PM
Awesome!  Thanks Bob!

George
Title: Re: Speed of Sound
Post by: Dan McEntee on October 28, 2012, 04:16:51 PM
Back in the late 50's early 60's B-58's used to rattle the windows in Indianpolis.  I thought it was pretty cool.  But the Air Force got harrassed away for civilization and when I got in we could only bust mach in remote desert areas.

It appears we've come full circle and people think supersonic cool again.   

It always impresses me that Chuck Yeager did it for the first time in 1948 and only twenty years later students were doing it six months into training.
        What I think is more impressive, is that in 1938, almost all of our front line fighter aircraft were fabric covered and wire braced biplanes. And in just ten short years, we evolved into the X-1 and the speed of sound was broken.  So much technology was discovered and advanced over that time period. Very similar today in my opinion and one of the problems with the economy. So much technology has been developed so fast in the last ten years, that there is no time for anything to get a foot hold and an industry and jobs to be built around it before the next greatest thing comes around. Everything and everybody moving so fast!! Almost at the speed of sound!
    Dan McEntee
Title: Re: Speed of Sound
Post by: Mike Keville on October 28, 2012, 05:10:06 PM
. . . Chuck Yeager did it for the first time in 1948 . . .

1947, actually.  October 14th.
Title: Re: Speed of Sound
Post by: Steve Thomas on October 28, 2012, 07:09:26 PM
Here's another physics lesson  ;) :  http://www.youtube.com/watch?v=CAG6H9M6gZo    - shows the sort of damage that a sonic boom can do.    (NB there's a bit of language at 0:18 - 0:22 that some might want to mute out, particularly if you're going to show it to your kids..)
Title: Re: Speed of Sound
Post by: Steve Thomas on October 28, 2012, 07:22:23 PM
1947, actually.  October 14th.


I've seen quite a strong case made that George Welch actually did it 2 weeks earlier, in the XP-86. It makes for interesting reading, if you look into it.
Title: Re: Speed of Sound
Post by: Dan McEntee on October 28, 2012, 09:09:12 PM
  I think there is also an argument that Slick Goodlin did it in the X-1 before Yeager did, and that is why he started his hold out for more money, or something like that. Might depend on who's book you read.
   Type at you later,
    Dan McEntee
Title: Re: Speed of Sound
Post by: Elwyn Aud on October 28, 2012, 11:25:07 PM
I've seen quite a strong case made that George Welch actually did it 2 weeks earlier, in the XP-86. It makes for interesting reading, if you look into it.

if George Welch did break it first, since there were no official FAI observers or monitoring equipment present, it just remains as a great story and nothing official.
Title: Re: Speed of Sound
Post by: Randy Ryan on October 29, 2012, 07:11:33 PM
WOW THAT IS AMAZING!!!
Title: Re: Speed of Sound
Post by: Shultzie on November 07, 2012, 04:14:39 PM
WOW THAT IS AMAZING!!!
Perhaps :! n~  a new age in R&D will soom be approaching that will  to finally get  "A HANDLE" on the sonic boom that is produced when exceeding the speed of sound.... H^^