Contest 45CS Standard

Sailboat specifications

The Contest 45CS is a 44’11” (13.7m) cruising sailboat designed by Georg Nissen Yacht Design (Germany). She is built since 2005 by Conyplex (Netherlands).

Contest 45CS's main features

Model: Contest 45CS
Version: Standard
Hull type: Monohull
Category: Cruising sailboat
Sailboat builder: Conyplex
Sailboat designer: Georg Nissen Yacht Design
Sailboat range: Contest Yachts
Country: Netherlands
Construction: GRP (glass reinforced polyester):
- Hull: Sandwich E-glass vinylester (vacuum infusion)
- Deck: Sandwich E-glass vinylester (vacuum infusion)
First built hull: 2005
Last built hull: Still in production
Appendages: Keel : fin with bulb
Helm: Single helm wheel
Rudder: Single 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): N/A €

Contest 45CS's main dimensions

Overall length: 44’ 11”13.7 m
Hull length: 44’ 11”13.7 m
Waterline length: 38’ 2”11.64 m
Beam (width): 13’ 6”4.1 m
Draft: 6’ 5”1.95 m
Mast height from D_WL: 69’ 2”21.08 m
Light displacement (M_LC): 29762 lb13500 kg
Ballast weight: 11244 lb5100 kg
Ballast type: Lead

Contest 45CS's rig and sails

Upwind sail area: 1109 ft²103 m²
Mainsail area: 581 ft²54 m²
Genoa area: 527 ft²49 m²
Rigging type: Sloop Marconi 19/20
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: Swept-back
Spars construction: Aluminum spars (carbon fiber spars as an option)
Standing rigging: 1x19 strand wire discontinuous

Contest 45CS'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.: 196 ft²/T18.17 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.: 242
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.: 38 %
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.: 8.28 knots