Wow. Looks like he was just like us, driving our cars in ignorant dreams ofsafety, while we are carrying that gasoline. And some times, awful things happen.
He's a frigging *astronaut* for crying out loud. Bolden flew on the damned thing four times and commanded two missions. Yet even I knew the RCC panels weren't six inches thick back in 1981 when I studied the shuttle program for a school project. If a 13-year old kid can find this out with a minimum of effort and no Internet, what's his excuse? At any time he could have walked over to one of the OMFs and held an RCC panel in his own hands. A more apt automotive analogy would be to compare Bolden's knowledge of his vehicle to that of a race car driver. I challenge you to show me such a driver that doesn't know his car intimately, inside and out.
The shedding foam was seen as a low mass substance that would bounce off the shuttle, especially given that the differential speeds between it and the still accelerating rocket were not as large as if it was not moving at all.
During the last launch of Atlantis four months prior to Columbia's last flight, a piece of shed bipod foam put a three-inch deep dent into one of the SRB attach rings, which are half an inch thick and made of steel, so there was documented evidence that shed foam could cause substantial damage prior to Columbia's flight. And yes, this was brought to management's attention as something to be concerned about.
And while it's quite easy to sit back and declare the shuttle designers assholes because no one in their right mind would ever design a leading edge tile so thin - do you know the physical aspects of creating those ceramic tiles? The aspects of attaching them to the vehicle? Or do you figure that they purposely designed them so thin so as to create a failure mode? That my friend, would merit criminal prosecution.
I'm not criticizing the designers. I'm criticizing the management that decided it was safe to fly in the face of documented issues that suggested otherwise without even looking into them.