IMX 38

Sailboat specifications

The IMX 38 is a 37’5” (11.4m) cruiser-racer sailboat designed by Niels Jeppesen (Denmark). She was built between 1992 and 2000 by X-Yachts (Denmark) with 92 hulls completed.

IMX 38's main features

Model: IMX 38
Hull type: Monohull
Category: Cruiser-racer sailboat
Sailboat builder: X-Yachts
Sailboat designer: Niels Jeppesen
Sailboat range: IMX
Country: Denmark
Construction: GRP (glass reinforced polyester):
Sandwich fiberglass polyester with galvanized steel frame
Number of hulls built: 92
First built hull: 1992
Last built hull: 2000
Appendages: Keel : L-shaped keel (with bulb)
Helm: Single helm wheel
Rudder: Single spade rudder
Unsinkable: No
Trailerable: No
Standard public price ex. VAT (indicative only): N/A €

IMX 38's main dimensions

Hull length: 37’ 5”11.4 m
Waterline length: 31’ 2”9.5 m
Beam (width): 12’ 1”3.69 m
Draft: 7’2.12 m
Light displacement (M_LC): 11795 lb5350 kg
Ballast weight: 6173 lb2800 kg
Ballast type: Cast iron fin with lead bulb

IMX 38's rig and sails

Upwind sail area: 959 ft²89.09 m²
Downwind sail area: 1635 ft²151.92 m²
Mainsail area: 405 ft²37.61 m²
Genoa area: 554 ft²51.48 m²
Solent area: 351 ft²32.6 m²
Jib area: 295 ft²27.45 m²
Symmetric spinnaker area: 1230 ft²114.31 m²
Rigging type: Sloop Marconi masthead
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 3
Spreaders angle: Swept-back
Spars construction: Aluminum spars

IMX 38'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.: 313 ft²/T29.12 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.: 535 ft²/T49.66 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.: 177
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.: 52 %
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.: 7.48 knots