| Main features | X-43 Standard | X-43 Shoal draft | X-43 Sport |
Model | X-43 | X-43 | X-43 |
Version | Standard | Shoal draft | Sport |
Hull type | Monohull | Monohull | Monohull |
Category | Cruiser-racer sailboat | Cruiser-racer sailboat | Cruiser-racer sailboat |
Sailboat builder | X-Yachts | X-Yachts | X-Yachts |
Sailboat designer | |||
Country | Denmark | Denmark | Denmark |
Construction | GRP (glass reinforced polyester): Sandwich fiberglass polyester with galvanized steel frame | GRP (glass reinforced polyester): Sandwich fiberglass polyester with galvanized steel frame | GRP (glass reinforced polyester): Sandwich fiberglass polyester with galvanized steel frame |
Number of hulls built | 169 | 169 | 169 |
First built hull | 2003 | 2003 | 2003 |
Last built hull | 2010 | 2010 | 2010 |
Appendages | Keel : L-shaped keel (with bulb) | Keel : L-shaped keel (with bulb) | Keel : L-shaped keel (with bulb) |
Helm | Single helm wheel | Single helm wheel | Single helm wheel |
Rudder | Single spade rudder | Single spade rudder | Single spade rudder |
Unsinkable | No | No | No |
Trailerable | No | No | No |
| Main dimensions | X-43 Standard | X-43 Shoal draft | X-43 Sport |
Hull length | 42’ 5”12.93 m | 42’ 5”12.93 m | 42’ 5”12.93 m |
Waterline length | 37’ 7”11.45 m | 37’ 7”11.45 m | 37’ 7”11.45 m |
Beam (width) | 13’3.97 m | 13’3.97 m | 13’3.97 m |
Draft | 7’ 2”2.2 m | 6’ 2”1.9 m | 8’ 2”2.5 m |
Light displacement (MLC) | 18960 lb8600 kg | 18960 lb8600 kg | 18960 lb8600 kg |
Ballast weight | 8157 lb3700 kg | 8157 lb3700 kg | 8157 lb3700 kg |
Ballast type | Cast iron fin with lead bulb | Cast iron fin with lead bulb | Cast iron fin with lead bulb |
| Rig and sails | X-43 Standard | X-43 Shoal draft | X-43 Sport |
Upwind sail area | 1152 ft²107 m² | 1152 ft²107 m² | 1152 ft²107 m² |
Downwind sail area | 1996 ft²185.4 m² | 1996 ft²185.4 m² | 1996 ft²185.4 m² |
Mainsail area | 575 ft²53.4 m² | 575 ft²53.4 m² | 575 ft²53.4 m² |
Genoa area | 577 ft²53.6 m² | 577 ft²53.6 m² | 577 ft²53.6 m² |
Solent area | 459 ft²42.6 m² | 459 ft²42.6 m² | 459 ft²42.6 m² |
Jib area | 361 ft²33.5 m² | 361 ft²33.5 m² | 361 ft²33.5 m² |
Symmetric spinnaker area | 1421 ft²132 m² | 1421 ft²132 m² | 1421 ft²132 m² |
Rigging type | Sloop Marconi 9/10 | Sloop Marconi 9/10 | Sloop Marconi 9/10 |
Mast configuration | Keel stepped mast | Keel stepped mast | Keel stepped mast |
Rotating spars | No | No | No |
Number of levels of spreaders | 3 | 3 | 3 |
Spreaders angle | Swept-back | Swept-back | Swept-back |
Spars construction | Aluminum spars (carbon fiber spars as an option) | Aluminum spars (carbon fiber spars as an option) | Aluminum spars (carbon fiber spars as an option) |
| Performances | X-43 Standard | X-43 Shoal draft | X-43 Sport |
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. | 274 ft²/T25.49 m²/T | 274 ft²/T25.49 m²/T | 274 ft²/T25.49 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. | 475 ft²/T44.17 m²/T | 475 ft²/T44.17 m²/T | 475 ft²/T44.17 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. | 162 | 162 | 162 |
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. | 43 % | 43 % | 43 % |
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. | 8.21 knots | 8.21 knots | 8.21 knots |
| Auxiliary engine | X-43 Standard | X-43 Shoal draft | X-43 Sport |
Engine(s) | 1 inboard engine | 1 inboard engine | 1 inboard engine |
Engine(s) power | 40 HP | 40 HP | 40 HP |
Fuel type | Diesel | Diesel | Diesel |
| Accommodations and layout | X-43 Standard | X-43 Shoal draft | X-43 Sport |
Cockpit | Closed aft cockpit | Closed aft cockpit | Closed aft cockpit |
Cabin(s) | 3 | 3 | 3 |
Berth(s) (min./max.) | 6 / 8 | 6 / 8 | 6 / 8 |
Head(s) | 2 | 2 | 2 |