"As fast as we're going these days, especially because of the aerodynamics, we're all concerned about abusing tires. It's so fast that you're afraid of what you're going to do to the tires."

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The bottom line is there is large uncertainty because nobody has a very good handle on aerodynamics at those altitudes and at those speeds. Given that large degree of uncertainty, life could be normal during entry or some bad things could happen.

— Wayne Hale