loool 343 m/s is Mach 1. We're at Mach 6, bitch, which at the New Mexico Space Port, elevation 1500m, is 2000 m/s more or less. The Wired article says "nearly 5,000 mph" which would be 2200 m/s.

Let's assume a 20 meter length because it's fun and it makes the math easy. we're going to traverse that distance, nose to nose, in ten milliseconds. That said same Wired article says "about 25 feet long" or 7.6 meters. So now we're traversing 13 meters in six and a half milliseconds, divide by two because you want one open not two, you're at 3.25 milliseconds. I'll say this - I was five fingers of bourbon down and off by two factors of ten, you're a goddamn rocket scientist and left off five machs. Or actually you didn't. But you said km/sec when you meant m/sec and you're still a rocket scientist so nyah nyah.

So okay. We gotta go a foot in one and a half millisecond, which sucks a lot less than a foot in fifteen microseconds. We're no longer racing HMX we just need it to produce exhaust gas roughly a tenth as fast as it burns which is the sort of fluid mechanics I'd say model, don't calculate because you will make an Ass out of U and Me.

And I say that having been doing some peculiar consulting on the side.

The problem is that shocks are non-linear.

Obviously this is going to be a 100% laminar environment because the air, upon seeing that door open, is gonna go "whoa, holy shit they said 'yeet'" and get the fuck out of the way.