Project 441Glass Palace - 63-metre slup by Tony Castro

Uske Berndt

 · 21.06.2025

Tony Castro designed the 62.5 metres for comfortable ocean sailing. Glass inserts make the high bulwarks appear more delicate.
Photo: Tony Castro
The 62.5 metre long yacht could even convince motor yacht fans to go sailing. Tony Castro's concept combines plenty of living space with impressive sailing performance. Thanks to the lifting keel, everything is possible, from ocean sailing to coastal anchoring.

With a length of 62.5 metres and a gross tonnage of 498 gross tonnes, the sailing yacht with project number 441 fully exploits the potential below the 500 GRT limit. This limit is crucial, as stricter classification regulations apply above it and the construction and operating costs increase significantly.

If the Slup is launched one day, it will rank among the top 100 of the 200 largest sailing yachts. On board the almost 63 metre ship, the first thing that catches the eye, apart from the glass deckhouse, are the high bulwarks with many glass windows, which fold down at the stern to create a huge beach club area - complete with pool.

Variable draught and impressive sail area

The focus of Tony Castro's extravagant yacht concept is her lifting keel with a variable draught of between 4.5 and 7.7 metres. In the deep position, it delivers maximum righting moment and outstanding sailing performance. When retracted, it allows the boat to call at shallower harbours and anchor close to shore.

The sail area is 1880 square metres upwind and 2800 square metres downwind. Under engine power, the Slup reaches a maximum of 18 knots.

The spatial concept by Tony Castro

The layout provides for a continuous main deck with saloon and outdoor area on one level. Thanks to the fully glazed deckhouse, guests sit inside as if in a conservatory, which can be air-conditioned if required. Individual roof elements can be opened so that a cool breeze blows through the interior.

The yacht offers space for twelve guests in six cabins, including a spacious owner's suite. There is also accommodation for ten crew members. Further details are still to be finalised, but there will definitely be two large tenders on board.

yacht/441-profile-2025-01-06-no-logo_6f2e7fb7a571bfed30216156d430f5b0Photo: Tony Castro

Technical data of the 62 metre slup

  • LOA: 62.5 m
  • LWL: 57.0 m
  • Width: 11.0 m
  • Draught: 4.5m / 7.7m
  • Sail area on the wind: 1880 m2
  • Sail area outhaul: 2800 m2
  • Speed under engine: 18 kn
  • Gross Tons: 498 GT

Most read in category Yachts