So, Now It's Moving Under Its Own Power

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It's alive, I tell you, it's alive!!

So, not only are all 4 engines running, but the aircraft is now taxiing under its own power, and has reached speeds of up to 20 kts.

We may see a timid hop into the air around year's end.

I'm not sure how much catching up they can do, and they are still over weight and under what they promised.