Our crew can't tack, and their tractor don't plow.
This crazy maneuver would have cracked the Oracle hull in half.
That is one tough "tractor", and looks like you need to wear suction cups to stay on it.
(the views in these videos bring back memories, as I lived and worked in SF Bay area back in the '70's)
http://www.youtube.com/watch?v=TFjxEfg_mEw