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Nauticat 515 is a Offshore cruising sailboat built by Nauticat Yachts and designed by Kaj Gustafsson. Her first hull was built in 1997 and a Keel stepped mast mast configuration.

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NAUTICAT 515 Sailboat Specifications​


Overall Length (LOA) m / ft15.42 m / 50.59 ft
Builder(s)Nauticat Yachts
Designer(s)Kaj Gustafsson
categoryOffshore cruising sailboat
Hull TypeMonohull
First Hull Built1997
Last Hull Built2018
AppendagesKeel fin without bulb
HelmTwin helm wheels
RudderSingle semi-spade rudder
CockpitCenter cockpit
Ballast TypeLead
Rigging TypeSloop Marconi masthead
Mast LayoutKeel stepped mast
Number of Head(s)2
Freshwater Tank Capacity lt/gal1600 L / 422.7 gal
Ballast Ratio34.17


Overall Length (LOA) 15.42 m / 50.59 ft
Hull Length15.42 m / 50.7 ft
Waterline Length (LWL)12.22 m / 40.1 ft
Beam (width)4.6 m / 15.1 ft
Draft2.2 m / 7.2 ft
Fore Freeboard1.75 m / 5.8 ft
Mid-Ship Freeboard1.65 / 5.5 ft
Light Displacement (MLC) 24000 kg / 52911 lb
Maximum Displacement24000 kg / 52911 lb
Ballast Weight8200 kg / 18078 lb


Critical Hull Speed8.48 knots
Capsize Screening Formula (CSF)1.61
Comfort Ratio50.94
Displacement-Length Ratio (DLR)372
Ballast Ratio34.17
Sail Area to Displacement15.45
Upwind Sail Area to Displacement16.55 m²/T / 178 ft²/T
Downwind Sail Area to Displacement32.14 m²/T / 346 ft²/T

Above Deck

Mast LayoutKeel stepped mast
Mast Height from DWL23.5 m / 77.1 ft
Rotating SparsNo
Number of Levels of Spreaders3
Spreaders Angle0 °
Spars ConstructionAluminum spars
Standing Rigging1x19 strand wire
Reported Sail Area125.90 m² / 1355.18 ft²
Upwind Sail Area137.7 m² / 1482 ft²
Downwind Sail Area267.4 m² / 2878 ft²
Mainsail Area59.1 m² / 636 ft²
Genoa Area78.6 m² / 846 ft²

Engine Room

Engine(s)1 inboard engine
Fuel typeDiesel
Fuel Tank Capacity1500 L / 396.3 gal

Below Deck

Fridge Capacity180 L / 47.6 gal
Maximum Headroom6.46 ft * 1.97 m