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Hull and superstructure joined on 50m Heesen superyacht Project Sapphire

22 January 2021By Miranda Blazeby

The hull and superstructure of the in-build 50 metre all-aluminium Heesen superyacht Project Sapphire have been joined.

The construction milestone took place on January 16 at Heesen’s Oss-based shipyard. Also known as YN 19850, Project Sapphire is the second hull in Heesen’s new semi-displacement 5000 aluminium class.

Key features include a low-drag hull, reduced transom depth and draught of just 2.15 metres. Exterior design comes courtesy of Frank Laupman’s Omega Architects while Van Oossanen Naval Architects is behind the naval architecture.

The “refined and elegant” interior meanwhile has been penned by Cristiano Gatto. Accommodation will be for a total of 12 guests in four lower deck cabins and a master stateroom on the main deck.

Twin MTU 16V4000M65L ‘green oceanic’ engines specifically designed to reduce NOx emissions will provide a top speed of 23 knots and range of 3,100 nautical miles at 11 knots.

Project Sapphire is set to feature a multitude of outdoor seating and dining areas, as well as a large bar, whirlpool and spacious sun deck.

A full-height tender garage doubling as a luxury beach club will sit beneath the aft sunbathing platform.

Delivery is scheduled for June 2022.