Originally posted by Silent Master
Then Superman should have flown, that way he wouldn't have had to worry about traction. On the hand, maybe his flight isn't strong enough to pull that much weight.
He flew under the beam of the World Engine, which was powerful enough to flatten skyscrapers. He was also depowered when he did that.
He probably didn't fly because he simply didn't need to, or because he didn't want to stress the chain and the ship too much.