In the bowels of a Volvo Ocean 60, Dutch navigator Marcel van Triest slouches at his nav station, a Kevlar cave 3.5 feet wide, 3 feet deep, and 4 feet high. The temperature hovers near 90 degrees as the equatorial sun penetrates a 12-inch hatch located behind and above his head--his only window to the outside world. The prevailing scent is his odor, a pungent blend of saltwater and sweat. It's been weeks since his last proper shower. On a panel less than 2 feet away are LCD computer displays, repeaters, a satellite phone, assorted scribbled notes, and cheat sheets. In this enclosure, he spends 18, 25, or sometimes 30 hours at a stretch. Although 11 other crewmembers are
onboard, most of the time he sits alone, weighing the circumstances of every course change he recommends.