Bulbs The four yachts have four different bulbs. Alinghi's is a squashed, cigar shape, much like NZL-60's in 2000. Oracle's is a refined variant, a little shorter and thicker than Alinghi's, but with a fine entry, hollowed lines flowing back to the beavertail and a sculpted "dillet," or Coke-bottle type hollowing, where the fin intersects the top of the bulb. NZL-81's bulb appears a little longer and more slender than Alinghi's, and NZL-82's is radically long and slender, perhaps more than 2 meters longer than the typical length of approximately 5 meters. The mid-length region of both of TNZ's bulbs have a flat bottom out to a corner to which the winglets are attached.