There are surprising destination spaces, such as an asymmetrical atrium staircase leading to a lower deck dining saloon, where an entire wall opens to reveal a terrace view just above sea level. Near the stern is an Aqua Lounge with massive windows below water level. In place of a mooring deck forward there is a revelatory bow observation lounge with double-curved glass floor-to-ceiling windows. Terraced aft decks float without pillars, while glass balustrades allow unobstructed views from both aft deck and fully glazed aft interior spaces, creating a vital connection to the natural environment.
Striving for innovation and first-class engineering, Project 710 is the perfect next step on Feadship’s path toward building zero-emission superyachts by 2030. It is the first of the new generation of large yachts furthering carbon reduction through hulls optimised at cruising speed instead of top speed, weight control, advancements in electric propulsion, and the ability to run her generators on HVO, a second-generation biodiesel, a so-called net zero CO2 fuel. Sea trials and delivery fill will be HVO, reducing total CO2 emissions by about 90%.
No drive shafts
Using Feadship’s Advanced Electrical Drive (FAED) program for diesel-electric hybrid power, Project 710 has 4.5 times more electrical storage capacity than our first hybrid yacht, Savannah. She has no drive shafts, and no rudders. Electric drive and steering are through a pair of electric Veth contra-rotating thrusters. Feadship and Veth collaborated on computational fluid dynamics (CFD) analysis of the drive legs and propellors’ shapes to maximize efficiency and minimize vibration.
Providing energy for the luxury hotel load accounts for much of a yacht’s fuel consumption. For Project 710, the engineering team took a deep dive into capturing waste heat from the custom variable speed generators and air conditioner chiller to supply heat to the AC system, pool water, domestic water, engine preheating, and more. An innovative heat pump system allows the yacht to draw heat from seawater.
(First look at Project 710 by Feadship – barchemagazine.com – April 2023)