In today’s rapidly evolving multihull world, luxury catamarans have become more than just spacious vessels—they’re now global explorers, private sanctuaries, and serious sailing machines. Among the most talked-about 80-foot catamarans on the market are the new Sapphire 80 by McConaghy and the well-known Sunreef 80. While both offer luxury on a grand scale, the design philosophies, performance capabilities, and build qualities of these two yachts couldn’t be more different. In this blog, we’ll explore what sets these two multihulls apart—and why the Sapphire 80 represents a new class of advanced, semi-custom supercats.
Lightness and Strength: Where the Real Difference Begins
The most striking difference between the McConaghy Sapphire 80 and the Sunreef 80 is the construction method and resulting weight. The Sapphire 80, built entirely in advanced vacuum bag, partly pre-preg hybrid carbon fiber with Nomex or Corecell foam core and is up to 40% lighter than the Sunreef 80. This is significant and is the very foundation of what makes the Sapphire an exceptional sailboat.
Sunreef employs a fiberglass foam/balsa build, which, while robust and durable, is significantly heavier and designed for comfort and charter-focused luxury. The result is a boat that relies more on engine power and sacrifices sailing performance. The Sapphire 80, on the other hand, is a true sailor’s catamaran: fast, nimble, and responsive. Its much lighter displacement not only translates into higher sailing speeds but also improved fuel efficiency and dramatically better sea-keeping behavior.
True Sailing Versus Charter Platform
The Sunreef 80 is an excellent platform for luxury living—particularly for charter owners and those prioritizing generous space over sailing finesse. Large beam, expansive flybridge, voluminous interiors—it’s all there. However, it sails more like a displacement motor yacht with sails than a true performance multihull.
The Sapphire 80 is a very different creature. It has retractable carbon centerboards instead of fixed keels as the Sunreef, enhancing both safety and upwind performance. The rig is high-aspect, high modulus carbon fiber mast and its structure optimized for stiffness, and every element is honed for speed. Whether under sail or power, the Sapphire glides effortlessly proving that you don’t need to compromise comfort to achieve thrilling performance. This is a yacht for owners who want to sail, not just cruise.
Craftsmanship: McConaghy’s High-Tech Edge
The Sapphire 80 catamaran’s superior weight and performance characteristics are made possible thanks to McConaghy’s heritage in building some of the world’s fastest and most advanced race boats. This includes high-profile projects like the Volvo Ocean Race yachts, America’s Cup campaigns, and world-record multihulls like Wild Oats XI and Ragamuffin. They even built record breaking submersibles!
CEO, Mark Evans, is not your typical luxury yacht builder. He’s a composite engineering specialist and boatbuilder who came up through the world of grand prix racing yachts. His deep knowledge of structural loads, carbon construction, and high-speed ocean sailing informs every decision at McConaghy. The result? Boats that are not only light and fast, but also incredibly durable under extreme stress—a legacy inherited by the Sapphire 80.
By contrast, Francis Lapp, the visionary founder and CEO of Sunreef Yachts, comes from a completely different background. He’s an entrepreneur who saw the potential for luxury catamarans long before the rest of the industry. I have deep respect for Francis, who took enormous risks when the world doubted the viability of large luxury multihulls. Today, thanks to his disruptive thinking, Sunreef has become a global symbol of high-end, floating real estate. His vision has inspired an entire category of (often controversial) yachts that didn’t exist 15 years ago.
It’s this contrast—performance DNA versus luxury charter vision—that defines the Sapphire vs. Sunreef difference, and it can be traced directly back to the leaders of each company.
Safety, Customization & Practical Design
The Sapphire 80’s centerboards are a major advantage. Unlike daggerboards, which can be damaged in a grounding, the centerboards retract into dedicated trunks and are set into separate watertight coffers and structurally integrated into the carbon hulls. This means they are both safer and easier to maintain, while greatly enhancing upwind ability.
In terms of customization, McConaghy offers a much wider latitude than Sunreef. While Sunreef offers a “bespoke” interior within a fairly rigid hull platform, the Sapphire 80 can be configured far more freely—layouts, bulkheads, systems, and even structural features can be tailored to the owner’s needs. You’re not just buying a boat—you’re helping shape it.
Why I’m Qualified to Make This Comparison
As the author of the book “Catamarans: Tomorrow’s Superyachts” (Published by Sheridan House, NY) , I’ve spent my life immersed in the evolution of multihulls. I have had the privilege of representing Sunreef as a dealer for more than a decade, during which time I sold numerous boats and came to know their shipyard deeply. Today, as an ambassador for McConaghy Boats I’ve had the pleasure of working with the yard for many years, serving as a liaison, project manager, and dealer for their high-performance cruising catamarans.
In addition to my sales and technical experience, I am a sailor and yacht designer by trade and have been involved in project management of complex multihull builds for decades. This rare combination of real-world selling, deep shipyard insight, and technical design experience places me in a very small company of global multihull experts. My views on Sunreef and McConaghy are not only based on passion, but on decades of data, conversations, and firsthand client feedback.
Aeroyacht: Your Global Ambassador for McConaghy
At Aeroyacht, we are proud to be one of the most experienced and knowledgeable McConaghy partners in the world. From concept to launch, we work closely with clients to specify, configure, and deliver exceptional high-performance catamarans like the Sapphire 80. Whether you’re transitioning from monohulls, powerboats, or are new to sailing entirely, we guide you every step of the way.
If your priorities are performance, technology, elegant design, and a real sailing experience, the Sapphire 80 stands in a class of its own. It is lighter, faster, stronger, and more customizable than the Sunreef 80—without sacrificing the luxury amenities that modern owners expect. With a Sapphire 80 you are buying into 55 years of advanced composite superyacht experience.
On the other hand, if your ideal yacht is an expansive, luxurious platform for static charter or gentle island-hopping—especially in the Med or Caribbean—the Sunreef 80 remains a compelling choice, backed by an exceptional team and a proven business model.
Both yachts are excellent. But if you seek a true superyacht that sails like a high-performance machine, McConaghy’s Sapphire 80 delivers on every level—and we at Aeroyacht are uniquely positioned to help you bring that dream to life.
