Sail area / displacement
How much sail the boat carries for its weight — its power in light air.
- 25.8· Racing
How it is worked out
sail area (ft²) ÷ (displacement as ft³ of seawater)^⅔
mainsail + jib, added up

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Arcona 435 Mk II - 45 foot — Arcona Yachts
* A standard reference image, not the actual boat — shown to help visualise this model's published dimensions.
From the published figures: CE Category A · LOA 13.63 m · fresh water 270 L
From the published figures: performance cruiser · 3 cabins
Tags are derived from certified class, length, sail area, accommodation and tankage using the criteria described on the Sources page; an editor may add or remove one.
Classic yacht-design ratios worked out from the builder's published figures, each shown against the bands designers read it by.
How much sail the boat carries for its weight — its power in light air.
sail area (ft²) ÷ (displacement as ft³ of seawater)^⅔
mainsail + jib, added up
How heavy the boat is for its waterline length. Lower is lighter and quicker; higher is steadier and roomier.
displacement (long tons) ÷ (0.01 × waterline length in ft)³
The share of the weight carried in the keel — a rough guide to stiffness, though how deep that weight sits matters as much.
ballast ÷ displacement × 100
Ted Brewer's measure of how gently a boat moves in a seaway. Higher means a slower, easier motion.
displacement (lb) ÷ (0.65 × (0.7 × LWL + 0.3 × LOA) × beam^1.333), lengths in ft
A guide from the inquiry after the 1979 Fastnet race: below 2 was taken as suited to ocean passages. It ignores hull shape and where the ballast sits.
beam (ft) ÷ (displacement as ft³ of seawater)^⅓
Roughly the speed a displacement hull reaches before it has to climb its own bow wave.
1.34 × √(waterline length in ft), in knots
Most builders publish a light displacement. The ratios were defined on a loaded boat, so every boat here reads a little lighter than a surveyor's figure would — all alike, which keeps them comparable.
What the builder publishes about how fast, how strong and how much the boat carries.
Fuel and water on one scale: a tank twice the height holds twice as much.
Certified CE design category A (Ocean): the wind and waves the EU Recreational Craft Directive says this boat is designed to take.
Sheltered waters
Inshore
Offshore
Ocean
Design limits set by the EU Recreational Craft Directive (2013/53/EU), in significant wave height. A category covers the conditions of those below it. It is the limit the boat was designed to, not a promise that it is safe in any conditions within it — that judgement stays with the skipper.
A figure marked with a quote mark was read from the builder's page. Open it for the exact line, the page and the date.
Figures read fromthe builder's page
Premium production
Swedish builder of cruiser-racer sailing yachts, based in Henån.
Arcona's roots lie in a small family yard in the Stockholm archipelago in the late 1960s, and its philosophy took form in 1982 with the Arcona 32: a racer's heart paired with a cruiser's comfort. A long collaboration with the designer Stefan Qviberg shaped the brand's balance and sailing feel, supported by the galvanised steel frame that has become an Arcona signature. Through the 2000s models such as the Arcona 400 set the modern Arcona look while advanced construction cut weight and added strength, and the Arcona 430 was European Yacht of the Year in 2009. Since 2018 Arcona has been part of Najad Group, still built on the island of Orust, and both the Arcona 435 and the Arcona 50 -- its entry into the super-premium segment -- have since won European Yacht of the Year.
Visit brand pageEvery model Arcona Yachts publishes, by length — where this one sits in the range.
Grand Soleil
LOA: 13.5 m
Arcona Yachts
LOA: 12.2 m
X-Yachts
LOA: 14.58 m