Re: breaking sound barrier movie

["S.Goelzer" <sgoelzer@COEBROWNACADEMY.COM>]

Hi All
I took a protractor to the screen ( in the last few frames the plane is
almost in profile) and  measured the cone angle. Then I used the
standard formula ( sin angle =  v sound/vobject)  to computed the speed
of the plane. I got (with reasonable error) the plane going right at
Mach 1.  This will be a significant improvement over my drawing pictures
of planes and imaginary lines to represent wakes on a whiteboard....

> Awhile back someone mentioned a picture on the web of an airplane at the
>   instant it is breaking the sound barrier.  I finally stumbled across
>   that picture.
>   It is a neat picture showing a cone of vapor enveloping the tail of
>   the aircraft.
>
>   At the site where I found this picture there is also a video showing the plane
>   zooming past the flight deck of a carrier, breaking the sound barrier
>   just about
>   amid ships.  It is spectacular.  Check out
>
>   http://www.navy.mil/homepages/cv64/soundbarrier/soundbarrier.htm
>
>   You'll like it.
>
>   JSM




*****************************
Scott Goelzer
Physics Teacher
Coe - Brown Northwood Academy
Northwood NH 03261
603-942-5531 ext43
sgoelzer@coebrownacademy.com
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