Reply #59: No envy to answer my question, Vincent?

[John Doe II]

My question is simple and clear.

So let me ask you for the third time:
Given the official speed of 580 mph at what altitude has the Boeing 757 to be at least in order to manage a 90° pitch downards?
How long does the whole turn take?

You can answer that!

and afterwards if the result clashes heavily with the eyewitness reports we can discuss them. But if you have a look the eyewitnesses are very close and with 300 feet altitude I chose a very conservative estimation ....

But I'm eager to hear your answer. You claimed it's easy for a plane at an altitude of 300 feet so surely you can answer this question, can't you?