A collaboration between T. Fotiadis Design & Lateral Naval Architects has resulted in a trimaran yacht concept named SPEAR.
Measuring 140m (459ft) in length, with a beam of 23m (75ft) and a 4,650 GT, SPEAR’s design delivers an abundance of outdoor living space, with expansive sun decks, alfresco dining areas, and lounging areas spread across much of the megayacht.
Due to the vessel’s trimaran design, SPEAR can operate at a cruising speed of 18 knots, using 20% less propulsion power compared to a 110m monohull. Furthermore, SPEAR integrates a medium-speed engine that offers a further 15% fuel saving per kW compared to typical yacht engines.
Capable of a top speed of 21 knots, the yacht’s engine has excess capacity at reduced speeds, enabling it to power all domestic loads of the yacht when cruising. Coupled with an electrical DC Grid for load balancing, SPEAR achieves an efficient, flexible system architecture. This combination of clever engineering and reduced fuel demands (and large tank volumes) results in a range of more than 7,500nm.
Additionally, relatively small sponsons contribute to SPEAR’s comfortable platform, requiring minimal support from active stabilization. While not available for internal space, they provide valuable tank volumes, facilitating the inclusion of future fuels such as methanol.
