Comment Re:Follow the Musk playbook (Score 1) 142
True, the damaged pad isn't a problem.
After the launch.
But i can be a problem during launch.
To give you some ideas, during the SpaceX Starship static fire with six engines:
- A camera that was mounted at the side of one of the legs of the launch mount was torn off. It was found around 400-600 meters away after the test. The camera, including the steel case it was mounted in, weights around 6-10 pounds. Imagine what happens to the rocket if such a projectile bounces off the ground and up into the engines (in this case unlikely due to the where it was mounted, but not impossible).
- Gravel torn off the concrete below the launhc mount was raining down - literally - at a distance of around 1 to 1.5 kilometers from the launch mount. It destroyed about a dozen heat protection tiles on the starship and its wings, damaged cables and tubing on the underside of the launch mount (and possible on the rockets engines...the visual evidence available isn't clear about that), and damaged the nozzle of (at least) one engine.
This was on the suborbital testing pad that has shorter legs, so you can't directly compare that to an orbital launch mount. But only six engines where fired, a fraction of the thrust the SLS engines produce.
While the damage to heat tiles can't happen with SLS, i don't think NASA wants to see a torn of fuel hose or a dented nozzle during liftoff...much less, worst case, a perforated fuel tank.