Nauticat 525

Sailboat specifications

The Nauticat 525 is a 52’2” (15.9m) motorsailer designed by Siltala Design Office (Finland). She was built between 2010 and 2018 by Nauticat Yachts (Finland).

Nauticat 525's main features

Model: Nauticat 525
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: 2010
Last built hull: 2018
Appendages: Keel : semi-full keel
Helm: Twin helm wheels
Rudder: Single semi-spade rudder
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
880 000 €
(2017)

Nauticat 525's main dimensions

Overall length: 54’ 7”16.65 m
Hull length: 52’ 2”15.9 m
Waterline length: 40’12.2 m
Beam (width): 15’ 1”4.6 m
Draft: 7’ 2”2.2 m
Mast height from D_WL: 77’ 1”23.5 m
Fore freeboard: 5’ 8”1.75 m
Mid-ship freeboard: 5’ 5”1.65 m
Light displacement (M_LC): 52911 lb24000 kg
Ballast weight: 19180 lb8700 kg

Nauticat 525's rig and sails

Upwind sail area: 1525 ft²141.7 m²
Downwind sail area: 2918 ft²271.1 m²
Mainsail area: 464 ft²43.1 m²
Mizzen sail area: 215 ft²20 m²
Genoa area: 846 ft²78.6 m²
Symmetric spinnaker area: 2239 ft²208 m²
Gennaker area: 2110 ft²196 m²
Rigging type: Ketch Marconi masthead
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 3
Spreaders angle: 0 °
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire

Nauticat 525'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.: 183 ft²/T17.03 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.: 351 ft²/T32.58 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.: 374
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.: 36 %
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.: 8.48 knots