Low fuel emergency in DFW

Mike Schumann writes:

Depending on where the 747 was, it could take a minute or more to get it off
the runway. There's a lot of mass involved.

A 747 on the runway will have its engines running. It can be clear of the
runway in a few seconds. And in this case, it would have far more time to get
clear, probably several minutes.

Of course, this is all a hypothesis that has no real basis in reality. In
reality, 747s do not sit on the runway blocking traffic.

Plus, you may have taxiways that are clogged with other traffic.

No, you don't. The taxiways off the runway are clear. Aircraft may be
taxiing in other areas, but they are not parking on the taxiways directly
adjacent to the runway.

747s don't make good off road vehicles.

They don't have to. They can move very quickly.

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