Several times, during a crisis, I have heard of a carrier being off the east coast of the US and then in a couple of days it would be in the Mediterranean. That's around 4000 miles. 4000 / 60 mph = 66.6 hours which is almost 3 days, not 2. 4000 / 48 hrs = 83 mph
Could be the carrier wasnt where the news reported it to be, at the beginning of the trip. Or, off the east coast covers a whole lot of the N. Atlantic.
83 mph sounds way to fast, but 60 mph wouldnt surprise me.
Just my .02
