Nauticat 441

Sailboat specifications

The Nauticat 441 is a 44’10” (13.65m) motorsailer designed by Siltala Design Office (Finland). She was built between 2008 and 2018 by Nauticat Yachts (Finland).

Nauticat 441's main features

Model: Nauticat 441
Hull type: Monohull
Category: Offshore motorsailer
Sailboat builder: Nauticat Yachts
Sailboat designer: Siltala Design Office
Sailboat range: Nauticat
Country: Finland
Construction: GRP (glass reinforced polyester):
Single skin fiberglass polyester
First built hull: 2008
Last built hull: 2018
Appendages: Keel : swing keel
Helm: Twin helm wheels
Rudder: Single rudder on skeg
Unsinkable: No
Trailerable: No
EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions) A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m: A
Standard public price ex. VAT (indicative only): About
463 000 €
(2017)

Nauticat 441's main dimensions

Overall length: 48’ 6”14.79 m
Hull length: 44’ 10”13.65 m
Waterline length: 36’ 11”11.25 m
Beam (width): 12’ 4”3.75 m
Draft: 6’ 2”1.9 m
Mast height from D_WL: 57’ 5”17.5 m
Fore freeboard: 5’ 7”1.7 m
Mid-ship freeboard: 5’ 1”1.55 m
Light displacement (M_LC): 36376 lb16500 kg
Ballast weight: 12125 lb5500 kg

Nauticat 441's rig and sails

Upwind sail area: 1130 ft²105 m²
Downwind sail area: 1816 ft²168.7 m²
Mainsail area: 348 ft²32.3 m²
Mizzen sail area: 144 ft²13.4 m²
Genoa area: 638 ft²59.3 m²
Solent area: 435 ft²40.4 m²
Jib area: 203 ft²18.9 m²
Stormjib area: 145 ft²13.5 m²
Symmetric spinnaker area: 1324 ft²123 m²
Rigging type: Ketch Marconi masthead
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: 0 °
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire

Nauticat 441's performances

Upwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds. The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat.: 174 ft²/T16.2 m²/T
Downwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds. The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.: 280 ft²/T26.03 m²/T
Displacement-length ratio (DLR) iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet). The DLR can be used to compare the relative mass of different sailboats no matter what their length: a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.: 328
Ballast ratio iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared. The higher the ballast ratio is, the greater is the stability.: 33 %
Critical hull speed iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed". The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34.: 8.14 knots