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Sailboat specifications and datasheets

X-43 sport

The X-43, here in "sport" version, is a 42’5” monohull sailboat designed by Niels Jeppesen. She was built by X-Yachts (Denmark) and made of sandwich fiberglass / polyester with galvanised steel frame. This sailboat was produced between 2003 and 2010 with 169 hulls completed.

The X-43 is as well listed, on Boat-Specs.com, in version Standard and Shoal draft.

X-Yachts X-43 X-Yachts X-43 sailplanX-Yachts X-43 layoutX-Yachts X-43 sailingX-Yachts X-43 accommodationsX-Yachts X-43 accommodationsX-Yachts X-43 accommodationsX-Yachts X-43 accommodations
X-43's   Main Features
Model X-43
Version Sport
Type of hull Monohull
Category Cruiser-racer sailboat
Shipyard
Designer Niels Jeppesen
Construction Hull and deck:
sandwich fiberglass / polyester with galvanised steel frame
First built hull 2003
Last built hull 2010
Number of hulls built 169
Appendages Keel :
Fin with bulb
Helm 1 wheel
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
Standard public price ex. VAT (indicative only) N/A
X-43's   Main dimensions
Hull length 42’ 5”
Waterline length 37’ 7”
Beam (width) 13’
Draft 8’ 2”
Light displacement 18960 lbs
Ballast weight 8157 lbs
Ballast type Cast iron fin with lead bulb
X-43's   Rig and sails
Upwind sail area 1152 sq.ft
Downwind sail area 1996 sq.ft
Mainsail area 575 sq.ft
Genoa area 577 sq.ft
Solent area 459 sq.ft
Jib area 361 sq.ft
Symetric spinnaker area 1421 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum (carbon fiber as an option)
Number of levels of spreaders 3
Spreaders angle Swept-back
X-43'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.
25.49
Downwind 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.
44.17
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.
162
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.
43 %
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.
8.21 knots
X-43's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 40 HP
Fuel type Diesel
X-43's   Accommodation
Cabin(s) 3
Berth(s) (min/max) 6 / 8
Head(s) 2

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