CelebYachts reportYards & Design

Why Sunrays and Vibrant Curiosity share the same length

Two Oceanco yachts measure exactly 85.43 metres. They are not sisterships.

By On the record · Sep 18, 2026 · Data from CelebYachts1

Photo: CelebYachts

A vessel’s position is the boat’s, not the owner’s. Ownership is as reported, not certified.

Sunrays and Vibrant Curiosity share a builder and a length. Their beams, tonnages, and interiors differ sharply. The match reflects Oceanco’s focus on an 80-metre range, not a shared design platform.

Sunrays and Vibrant Curiosity sit side by side in the data. Both measure 85.43 metres from bow to stern. They both carry the Oceanco name. This fact invites questions about sisterhood.

The answer lies in the yard’s plan, not a shared mould. Oceanco optimised its work for a specific size range. Clients chose this length for practical reasons. The result is two very different boats with one number in common.

The owners could not be more distinct. Ravi Ruia bought Sunrays in 2010. Reinhold Würth acquired Vibrant Curiosity in 2009. Their wealth comes from different industries. Their tastes shaped different hulls.

How do the engines compare?

Did Oceanco build these as sisters?

No source claims they are sisterships. They were launched in different years. One arrived in April 2009. The other followed in March 2010. The gap suggests separate commissions.

The beam tells the first story of difference. Sunrays measures 14.24 metres wide. Vibrant Curiosity sits at 13.8 metres. That half-metre gap changes everything inside. A wider hull holds more volume.

Gross tonnage confirms the split. Sunrays registers at 2,867 tons. Vibrant Curiosity sits at 2,822 tons. The numbers look close on paper. They reflect different internal layouts and equipment loads.

Sunrays, 85.43 m, was delivered in March 2010 as the final major project of Oceanco's pre-expansion era.

Oceanco built both in Alblasserdam. The yard has a fixed slipway length. It favours a specific range of yacht sizes. Builders often repeat successful dimensions. This explains the identical length.

The design teams were also separate. Sunrays used Terence Disdale for interiors. Bjorn Johansson handled the exterior lines. Vibrant Curiosity relied on Nuvolari & Lenard. These Italian designers brought their own styles.

Different designers mean different priorities. One team might maximise deck space. Another might prioritise guest cabins. The steel shell follows the brief. The shared length is a constraint.

How do the interiors compare?

Accommodation counts reveal the divide. Sunrays holds sixteen guests. Vibrant Curiosity fits fourteen. The crew sizes also differ. Sunrays carries twenty-eight staff. Vibrant Curiosity runs with twenty-six.

Vibrant Curiosity features a unique master suite. It includes a private office. An exterior whirlpool sits nearby. Two VIP suites occupy the upper deck. This layout suits a single primary owner.

Sunrays offers a broader spread. Its interior by Disdale focuses on luxury. The aluminium superstructure meets steel hull standards. Teak decks cover the exterior surfaces. Lloyd's Register certified the build.

The engine rooms tell another tale. Both use MTU 16V 595 TE70 diesels. Sunrays produces 4,680 horsepower total. Vibrant Curiosity generates 3,492 kilowatts. The power outputs align closely but serve different needs.

Both vessels use the same engine model. They rely on MTU 16V 595 TE70 diesels. This is a standard choice for this class. However, the tuning differs between them. Sunrays pushes harder for speed. It delivers 4,680 horsepower in total. Vibrant Curiosity runs at 3,492 kilowatts. That is roughly 4,680 horsepower too. The numbers are close in theory.

Speed records show the performance gap. Sunrays reaches twenty knots. Vibrant Curiosity tops out at eighteen point five knots. Cruising speeds also vary. One prioritises range over raw pace. Both can travel 5,500 nautical miles at 14 knots. This range is enough for most trips.

Who owns these yachts now?

Speed records show the performance gap. Sunrays reaches twenty knots. Vibrant Curiosity tops out at eighteen point five knots. Cruising speeds also vary. One prioritises range over raw pace.

Vibrant Curiosity, 85.43 m, shares her length with Sunrays but differs in beam, tonnage, and interior layout.

Ravi Ruia owns Sunrays today. He leads the Essar Group empire. His family built wealth in steel and energy. Essar started in 1969. The yacht reflects industrial scale.

Reinhold Würth controls Vibrant Curiosity. His company makes fasteners and tools. The yacht took its name from a 2006 motto. Würth values precision and heritage. The vessel mirrors that discipline.

Their flags mark their current homes. Sunrays flies the Cayman Islands flag. Her home port is George Town. Vibrant Curiosity sails under Malta. Valletta serves as her base.

AIS data shows their recent paths. Sunrays drifted near the Ligurian Sea. Coordinates placed her at 43.29° N. Vibrant Curiosity stayed in the Adriatic. She sat at 42.92° N. Both remain active in European waters.

Ravi Ruia owns Sunrays today. He leads the Essar Group empire. His family built wealth in steel and energy. Essar started in 1969. The yacht reflects industrial scale. Ruia is an Indian billionaire. He bought the boat in 2010. It cost around $129 million. This figure is an estimate. The exact price was never published.

Reinhold Würth controls Vibrant Curiosity. His company makes fasteners and tools. The yacht took its name from a 2006 motto. Würth values precision and heritage. The vessel mirrors that discipline. Würth is a German entrepreneur. He bought the boat in 2009. The sale price remains secret. No public record confirms the sum.

Where have they been recently?

AIS data shows their recent paths. Sunrays drifted near the Ligurian Sea. Coordinates placed her at 43.29° N. Vibrant Curiosity stayed in the Adriatic. She sat at 42.92° N. Both remain active in European waters. Their positions change daily. AIS tracks their movements in real time. This data is public for all ships.

The flags mark their current homes. Sunrays flies the Cayman Islands flag. Her home port is George Town. Vibrant Curiosity sails under Malta. Valletta serves as her base. These choices affect registration rules. They also influence tax obligations. Owners pick flags for legal reasons.

What does the length mean?

Eighty-five metres is a sweet spot. It fits standard marinas well. It allows for generous living spaces. Yacht buyers seek this balance. Oceanco recognised the market demand early.

Reporting and data: CelebYachts, republished by On the record.

Sources

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