The Mayflower 400 autonomous trimaran is seen during a sea trial in Plymouth, south west England on April 27, 2021. - The "Mayflower 400", the world's first intelligent ship, bobs gently in a light swell as it stops its engines in Plymouth Bay, southwest England, before self-activating a hydrophone designed to listen to whales. The 50-foot (15-metre) trimaran, which weighs 9 tons and navigates with complete autonomy, is preparing for a trans-Atlantic voyage. The autonomous ship is scheduled to embark on May 15 if weather is favourable and permission is granted by British authorities. The journey to Plymouth Massachusetts -- the same voyage made by pilgrims on the original "Mayflower" in 1620 as they sought a new life in America -- will take three weeks. - TO GO WITH AFP STORY BY Anna CUENCA (Photo by BEN STANSALL / AFP) / TO GO WITH AFP STORY BY Anna CUENCA (Photo by BEN STANSALL/AFP via Getty Images)