NAJAD 400/405

Beta Marine

Sailboat Specifications

Hull Type: Fin w/rudder on partial skeg
Rigging Type: Fractional Sloop
LOA: 40.03 ft
LWL: 34.25 ft
S.A. (reported): 850.35 ft²
Beam: 12.63 ft
Displacement: 26,896.00 lb
Ballast: 8,818.00 lb
Max Draft: 6.56 ft
Construction: FG with ISO polyester
Ballast Type: Lead
First Built: 2003
Last Built: 2009
Builder: Najad Yachts (SWE)
Designer: judel/vrolijk

Auxiliary Power/Tanks (orig. equip.)

Make: Yanmar
Model: 4JH4-E
Type: Diesel
HP: 54
Fuel: 61 gals


Water: 145 gals
Headroom: 6.46 ft

Sailboat Calculations

S.A. / Displ.: 15.22
Bal. / Displ.: 32.79
Disp: / Len: 298.85
Comfort Ratio: 39.43
Capsize Screening Formula: 1.69
Hull Speed: 7.84 kn
Pounds/Inch Immersion: 1,545.65 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

Mast Height from DWL: 56.59 ft

Sailboat Links

Designers: Judel/Vrolijk & Co.
Builders: Najad Yachts (SWE)
Associations: Najad Owners Association
Download Boat Record:


Optional shallow draft: 1.8m / 5.9 ft17.25

The N400 was updated and became the N405 between 2006 - 2009. Same hull. Update includes:
A taller rig. Mast above DWL: 18.5 m / 60.7 ft
Deeper draft: 2.1m / 6.89 ft
Shallow draft option: 1.9m / 6.23 ft