[Pentagon Leatherneck]

You're right, Finny: A vertical-launch missile makes no sonic boom as it rises, until the missile is at 20,000-ft or more, and then it's a retreating wave directed primarily upward. That video looked more like a rocket/missile going up than a jet in level flight. I'm not aware of any more DATA than the film. TC

[pepsionice]

Let’s put those Myth-buster guys from the Discovery Channel on this.

Me personally...I think a couple of college kids dreamed this up and built the rocket themselves. They probably put in too much fuel and it went alot higher than anticipated.