4 ms·
That's my thinking, but ignition is a staggered 6 second duration, so there's at least a window for adverse directional flow. But looking at that pad and the d
by beerandt 4y ago
That's my thinking, but ignition is a staggered 6 second duration, so there's at least a window for adverse directional flow.
But looking at that pad and the damage to it- without deluge dampening, I bet the RC spalling might have been a bigger issue than just ground blowback.
Put a blowtorch to some concrete a and watch how quickly trapped moisture starts causing miniature explosions and flying shrapnel.
But that's just my first uninformed impression.
- cubefox 4y agoThey have special concrete now which shouldn't explode from moisture. But apparently it didn't hold up at all. I don't think anyone expected this.
- zaarn 4y agoThe output power of a rocket is different than a blow torch. The sound pressure alone is near or above atmospheric pressure. That concrete is being exposed to vacuum and more than 1atm pressure fairly rapidly. The heat on top of that and if the concrete has any moisture, the water inside is going to rapidly sublimate and condense several times a second. That is on top of the concrete being slammed into by an entire atmosphere of pressure in the meanwhile. There is a reason that NASA dumps a few million liters of water under their rockets.
- deleted 4y ago[deleted]