I do not know where I found this photo, but http://tineye.com/ image search shows 79 results, so I thought we might as well have our own copy. ;)
First saw this about 15 years ago. Still funny. Even two tug captains of my acquaintance think so. Surprised to see it's still on the 'net....
at setsail.com Steve gives all the consumption figures for Wind Horse, and mentions that they are less than the cost of running his 80' Beowulf...