Right but the backup power stays on until the main power is up and ready.
The sequence is typically
Power goes out - backup automatically kicks in - crew attempts to restart main - main fires back up - crew checks to make sure its holding - crew manually turns off the backup and makes the switch.
I'm not sure how reply directly to someone. But Spsalso's comment the first time the lights went off the main powerplant went. When the lights kicked back on it was the backup system. Then the second time the lights went off it was the backup power switching back over to main power, hence the...
There are a few reasons they might not have used tugs. My guess is the bridge has a narrow navigable channel based on the after collapse photos showing the bridge pieces sitting on the bottom. That's no more than speculation though.
The ship going completely dark twice means she lost power and was unable to effectively bring it back. She would have had no rudder or thrusters while carrying both a full cargo and presumably heavy fuel load. Meaning she was deep in the water, most susceptible to any kind of current, with no...
