A wind-powered trimaran, built to service Tonga's outer islands and commissioned by King Tupou VI in 2017, is struggling to find suitable crew.The 50 foot vessel, 'Utuma'atau, has been out of operation a number of times since its launch after being damaged by Cyclone Gita in 2018 and most recently when it was smashed by another vessel, which had broken its moorings in Nuku'alofa harbour.