SAN FRANCISCO (AP) — Emirates Team New Zealand set another top speed for America’s Cup 72-foot catamarans, hitting 44.15 knots, or 50.8 mph, Thursday on San Francisco Bay.The Kiwis set the mark on the first reaching leg as they sailed alone around the course to collect another point in the Louis Vuitton Cup for challengers. The scheduled opponent, Artemis Racing, has yet to race as it works to get its second boat launched following the fatal capsize of its first boat on May 9.The Kiwis’ top speed translates to 81.7 kilometers per hour or 74.5 feet per second. The wind speed on the leg peaked at 15.8 knots.The team’s previous best mark was 43.26 knots, or 49.78 mph, set by the Kiwis on July 9 in slightly stronger winds.The high-performance cats generate their speed thanks to mainsails that are shaped and perform like jetliner wings, and hydrofoils that reduce drag.