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SWAN 411

Swan 411 is a Offshore cruiser-racer sailboat built by Nautors Swan and designed by Sparkman & Stephens. Her first hull was built in 1977 and a Keel stepped mast mast configuration.

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SWAN 411 Sailboat Specifications​


Overall Length (LOA) m / ft12.44 m / 40.81 ft
Designer(s)Sparkman & Stephens
categoryOffshore cruiser-racer sailboat
Hull TypeMonohull
Number of Hulls Built42
First Hull Built1977
Last Hull Built1979
AppendagesKeel fin without bulb
HelmSingle helm wheel
RudderSingle rudder on skeg
CockpitClosed aft cockpit
Ballast TypeLead
Rigging TypeSloop Marconi masthead
Mast LayoutKeel stepped mast
Number of Cabin(s)2
Number of Head(s)1
Freshwater Tank Capacity lt/gal250 L / 66 gal
Ballast Ratio0.48


Overall Length (LOA) 12.44 m / 40.81 ft
Hull Length12.44 m / 40.10 ft
Waterline Length (LWL)10.23 m / 33.7 ft
Beam (width)3.64 m / 11.11 ft
Draft2.22 m / 7.4 ft
Wetted Area42 m² / 452 ft²
Light Displacement (MLC) 10800 kg / 23810 lb
Maximum Displacement10795 kg / 23800 lb
Ballast Weight5200 kg / 11464 lb


Critical Hull Speed7.76 knots
Capsize Screening Formula (CSF)1.66
Comfort Ratio37.86
Displacement-Length Ratio (DLR)286
Ballast Ratio0.48
Sail Area to Displacement16.95
Upwind Sail Area to Displacement21.51 m²/T / 232 ft²/T
Downwind Sail Area to Displacement42.16 m²/T / 454 ft²/T

Above Deck

Mast LayoutKeel stepped mast
Rotating SparsNo
Number of Levels of Spreaders2
Spreaders Angle0 °
Spars ConstructionAluminum spars
Standing RiggingSingle-strand (ROD) discontinuous
Estimated Forestay Length18.36 m / 60.25 ft
Reported Sail Area81.10 m² / 873.00 ft²
Total Sail Area81.09 m² / 872.85 ft²
Upwind Sail Area105.1 m² / 1131 ft²
Downwind Sail Area206 m² / 2217 ft²
Mainsail Area33 m² / 355 ft²
Genoa Area72.1 m² / 776 ft²
I57.6 ft * 17.53 m
J18 ft * 5.49 m
P51.6 ft * 15.7 m
E13.10 ft * 4.21 m

Engine Room

Engine(s)1 inboard engine
Fuel typeDiesel
Fuel Tank Capacity130 L / 34.3 gal

Below Deck

Fridge Capacity140 L / 37 gal
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