The newest Heesen 50m superyacht Book Ends (previously known as Project Sapphire), which was launched earlier this month, has gone through intensive sea trials at the North Sea. She is the second in the new semi-displacement 5000 Aluminum Class, a fast-cruising design of under 500GT which follows from the successful Satori Class. The in-house team was supported by Van Oossanen Naval Architects, who carried out the computational fluid dynamics (CFD) tests.

The yacht was sold in September 2021 by Thom Conboy from Heesen USA for experienced owners. After the successful sale of their 2017 47m Heesen motor yacht of the name Book Ends (now Artisans), Bob and Amy Book have returned to the Dutch shipyard for their second Heesen yacht in four years.
An optimized, low-drag hull design with a reduced transom depth – a design refinement conceived by Heesen’s in-house team of naval architects – has resulted in efficiency gains of around 12 per cent. A draft of just 2.15 meters makes her the perfect yacht for exploring shallow waters. Her ultra-efficient hull shape is seamlessly complemented by two MTU 16V4000M65L ‘green ocean’ engines, fitted with Selective Catalytic Reduction (SCR) units to reduce NOx emissions. With a top speed of 23 knots, she perfectly embodies Heesen’s sporty DNA.

Book Ends interior was penned by Cristiano Gatto. Twelve guests can be accommodated in four spacious suites on the lower deck and a master stateroom forward on the main deck. She offers plenty of outdoor deck space, with a raised lounge on the main deck aft, a dining area on the upper deck and another lounge on the foredeck. She also features a hot tub, bar and dining table.
After completing sea trials she now undergoes interior outfitting before her delivery.
Heesen Yachts is a Dutch ship building company that specializes in custom-built superyachts in aluminum and steel from 30m to 70m in size. Founded in 1978, it has launched more than 170 yachts since its inception.
Credits: Heesen