- Sep 19, 2020
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10 mph still isn't much of a wind. Especially with a ship that weighs as much as that cargo ship. I figure it weighs 40,000 to 50,000 tons fully loaded. 10 mph winds isn't going to bother it much. It depends on the currents and the speed.
I spent 3 years going to sea on an aircraft carrier. The wind is almost always blowing. That's the primary cause of swells. The stronger the winds the bigger the swells. 10 mph will cause 4-6 ft swells at sea. I've been at sea in the path of hurricanes and had 30 ft swells pounding us.
You're right. I actually did the math.
Assumed 10 mph wind, 10E6 kg cargo ship, 1000 m2 sail. Assuming it could drift for the 90 seconds the video shows power was out, I get only about a foot (0.25m) of drift.
I was clearly incorrect.
Interestingly, the anchor on the port side was dropped and dragged, but the ship turned towards starboard before hitting the bridge...
Thanks,
Jim
![us-transport-incident.jpg](https://media.gettyimages.com/id/2107844387/photo/us-transport-incident.jpg?s=2048x2048&w=gi&k=20&c=2pUNQ1JXWM7Gq9OSiHGlzaK4JrA1u5KiBwb6aROzL68=)