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Why Altair III moves slowly near Naples

AIS data shows Diego Della Valle’s 1974 yacht operating within fixed mechanical limits. Her age caps her speed at twelve knots. She logged short trips in the…

By On the record · Sep 23, 2026 · Data from CelebYachts1

Photo: CelebYachts

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

Altair III is a 59-metre motor yacht built by Amels in 1974. Her owner, Diego Della Valle, chairs Tod's. The vessel stays near Italy because her hull design limits her speed. This keeps her close to home ports in the Adriatic Sea.

What limits Altair III's speed?

Altair III has not left the Italian coast since late summer 2026. The 59-metre yacht belongs to Diego Della Valle. He chairs Tod's, the luxury shoe maker. His wealth comes from that business and other investments.

The AIS signal shows her anchored in the Adriatic Sea. Her last known position was at 40.13° N, 19.38° E. This spot is well north of Naples. It is far from open ocean routes.

She moves slowly. Her top speed is about twelve knots. That limit comes from her 1974 hull design. Older yachts often have this constraint. They were built for comfort, not speed.

Amels built Altair III at yard 327. The yard is part of the Damen Group. The vessel launched in 1974. That year set her mechanical limits.

Her gross tonnage is 1,019. This measures her inside volume. It is modest for a 59-metre boat. The weight distribution matters more than size.

Altair III is old. She launched in 1974. Most yachts her size are much newer. A 59-metre yacht built today weighs more. It carries more technology.

The beam is 11 metres. This width affects stability. It also adds drag at higher speeds. The hull shape resists fast travel.

Her gross tonnage is 1,019. This measures her inside volume. A modern 59-metre yacht might exceed 2,000 tons. The older design is lighter. It cannot hold as much equipment.

Diesel engines from that era lack power. Modern super yachts use heavy fuel oil or gas turbines. Altair III uses standard marine diesels.

Her beam is 11 metres. This width affects stability. Newer hulls are wider. They offer more space below deck. Altair III feels cramped by comparison.

Her estimated value is $40 million. This reflects her age. A new 60-metre yacht costs over $100 million. Maintenance keeps her afloat.

Who funds the upkeep of Altair III?

Diego Della Valle owns the yacht. He is an Italian businessman. He holds the chairmanship of Tod's. His family started a shoemaking business in the 1920s. Filippo Della Valle founded it. Diego expanded it into Tod's. He took over in 1978.

Della Valle has many business interests. He owns stakes in Mediobanca and Piaggio. He also held shares in Saks, Inc.

He sold Nuovo Trasporto Viaggiatori in 2018. The deal was worth nearly €2 billion. He made money from it.

His wealth funds the yacht's upkeep. Tod's profits cover daily costs. Other investments provide extra cash.

Where has Altair III been in 2026?

The AIS archive tracks her movements closely. She stayed in Campania, Italy. This region includes Naples and Sorrento.

She made several short trips. Most lasted under two hours. The distances were small. She rarely went beyond local bays.

One trip covered 17.7 nautical miles. She sailed from Naples to Sorrento. The journey took just under two hours.

Another leg ran from Salerno to Torre Annunziata. That distance was 36.7 nautical miles. It took three hours and thirty-two minutes.

Her average speed on these runs was low. Most averages fell between nine and ten knots. This matches her design limit.

She did not cross the Mediterranean. She stayed in protected waters. This avoids long passages through open sea.

Why does she stay in Italy?

Her flag is Italy. This simplifies her registration. She pays taxes there. She follows Italian maritime laws.

Della Valle lives in Italy. He owns a villa in Sant'Elpidio a Mare. He also has homes in Milan and Paris.

The yacht serves as a local transport. It moves him between properties. He uses it for leisure near his base.

Her slow speed makes long trips hard. Staying in Italy is easier.

Maintenance is simpler in home ports. Amels can service her easily. Italian shipyards know her systems well.

The pattern repeats every year. She leaves port in spring. She returns in autumn. She stays within range of Naples.

What makes Altair III slow?

Altair III, 59.0 m, logged 419 nautical miles between Naples and Brindisi in August 2026. Live position shows the vessel anchored in the Adriatic Sea at 40.13° N, 19.38° E. Follow her live position →
The passage from Naples to Brindisi covered 419 nautical miles over forty-three hours, averaging 9.1 knots.

His family started a shoemaking business in the 1920s. Filippo Della Valle founded it. Diego expanded it into Tod's. He took over in 1978.

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

Sources

The numbers on this page point here. Each one links to the record it came from.

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