Detailed sailboat specifications and datasheets since 2015
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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
Sailboat designer
Sailboat range
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 DWL
69’ 2”21.08 m
Light displacement (MLC)
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

Contest 45CS's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power
75 HP
Fuel type
Diesel
Fuel tank capacity
75.6 gal286 liters

Contest 45CS's accommodations and layout

Cockpit
Central cockpit
Cabin(s) (min./max.)
2 / 3
Berth(s) (min./max.)
4 / 7
Head(s)
2
Freshwater tank capacity
111 gal420 liters
Boiler capacity
10.6 gal40 liters
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