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Sailboat specifications and datasheets

Contest 50CS standard

The Contest 50CS, here in "standard" version, is a 49’2” monohull sailboat designed by Georg Nissen. She was built by Conyplex (Netherlands) and made of sandwich E-glass / vinylester (vacuum infusion). The production started in 2006 .

The Contest 50CS belongs to the Contest Yachts range.

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Contest 50CS's   Main Features
Model Contest 50CS
Version Standard
Type of hull Monohull
Category Offshore cruising sailboat
Shipyard
Designer Georg Nissen
Range Contest Yachts
Construction Hull and deck:
sandwich E-glass / vinylester (vacuum infusion)
First built hull 2006
Last built hull Still in production
Appendages Keel :
Fin with bulb
Helm 1 wheel
Rudder 1 spade rudder
Cockpit Central cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only)
N/A
Contest 50CS's   Main dimensions
Length overall 49’ 2”
Hull length 49’ 2”
Waterline length 43’ 1”
Beam (width) 15’
Draft 7’ 1”
Mast height from DWL 77’ 4”
Light displacement 38581 lbs
Ballast weight 13448 lbs
Ballast type Cast iron fin with lead bulb
Contest 50CS's   Rig and sails
Upwind sail area 1345 sq.ft
Mainsail area 721 sq.ft
Genoa area 624 sq.ft
Rigging type Sloop Marconi 19/20
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum (carbon fiber as an option)
Standing rigging 1x19 strand wire discontinuous
Number of levels of spreaders 3
Spreaders angle Swept-back
Contest 50CS's   Performances
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
18.54
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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.
219
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
35 %
Maximum righting momentiThe righting moment is a moment (torque) that tends to restore a boat to its previous position after a rotational displacement. Its value corresponds to the torque needed to heel the boat for this angle.
Higher the righting moment is for an angle, greater is the stability at this angle.
115728 lbs.ft @ 55.00 °
Hull speediAs 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.
8.79 knots
Contest 50CS's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 110 HP
Fuel type Diesel
Fuel tank capacity 149 gal
Contest 50CS's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Head(s) 2
Fresh water tank capacity 189.7 gal
Water heater capacity 10.6 gal

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