Re: [OM] OT Low Flying, was an OM weekend

[Roger Wesson]

I recalled seeing a picture of this phenomenon on Astronomy Picture of 
the Day and managed to find it in the archives:
http://apod.gsfc.nasa.gov/apod/ap010221.html

There's links from the article to more information about the phenomenon. 
   Whatever the physics of it it's quite a phenomenon, and to capture 
the moment takes some doing!  I just found this article:
http://www.wilk4.com/misc/soundbreak.htm

with comments from the photographer.

Roger

Gary Edwards wrote:

> ----- Original Message -----
> From: "Thomas A Simmons" <tasimmons@xxxxxxxxxxxx>
>

> > Well, a F14 was approaching for a high speed pass. Got my trusty OM-1
> > with the 400 MM ready to follow it as it crossed in front of me when I
> > noticed
> > a bit of condensation on it's nose. I have this picture of that bird
> > popping through
> > the sound barrier just as it crossed over RT15 at about 500 feet. I'll bet
> > that the
> Tom, we'd love to see the shot.
>
> One note.  Nearly all of the photos you see of supersonic airplanes with
> various clouds of condensing vapor surrounding them have captions claiming
> to record the instant of "breaking the sound barrier!"  They aren't.

<Gary's further explanation trimmed>




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