Although the towering sails echoed a bygone era of explorers, the sister ships Wind Spirit and Wind Star, with its sleek lines and computerized controls, was revolutionary in concept and design. Windstar's ships are officially masted-sail- yachts (msy), but the designation belies the vessels unique rigging. Unfurling in two minutes at the push of a button, billowing white sails reach to the sky. All functions are operated from the bridge by computer microchips and navigational devices. The unusual "open-bridge" operation allows guests to drop by and acquaint themselves with the veteran captains and officers who demonstrate the ship's intriguing capabilities to modern day explorers.