Doesn't look like it went supersonic, almost, but not quite.

Oops... I hit the deflector shield button.

>> ^GeeSussFreeK:
Doesn't look like it went supersonic, almost, but not quite.


Don't know about you, but my indication for whether something's gone over the sound barrier usually is the sound it makes

>> ^EDD:
>> ^GeeSussFreeK:
Doesn't look like it went supersonic, almost, but not quite.

Don't know about you, but my indication for whether something's gone over the sound barrier usually is the sound it makes


hahaha! Well this is one of the rare cases where you can see it as well as the vapor is an indication that the compressed air hasn't pushed its way off the tail of the plane causing the boom your talking about

>> ^GeeSussFreeK:
Doesn't look like it went supersonic, almost, but not quite.


You can tell it's supersonic because you can't hear it until it reaches you.

>> ^SaNdMaN:
>> ^GeeSussFreeK:
Doesn't look like it went supersonic, almost, but not quite.

You can tell it's supersonic because you can't hear it until it reaches you.


It is near super sonic for sure, you can even hear small compression blasts after it passes, but it isn't quite there

*promote

Promoting this video back to the front page; last published Monday, September 8th, 2008 5:06am PDT - promote requested by rasch187.

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There's no way to tell by the cone. Stop arguing about stuff you don't know.

Vapor cones appear at transonic speeds(about Mach .8 - 1.2) AND supersonic speeds. The appearance of the vapor cloud largly depends on the ambient moisture content and air temperature.

I say kudos to the camera operator for tracking a fast-moving aircraft so well, while zoomed way in. Practice has made perfect it seems.