Jouët 24

Sailboat specifications

The Jouët 24 is a 23’7” (7.2m) cruising sailboat designed by Daniel Tortarolo (France). She was built between 1977 and 1982 by Yachting France (France).

Jouët 24's main features

Model: Jouët 24
Hull type: Monohull
Category: Cruising sailboat
Sailboat builder: Yachting France
Sailboat designer: Daniel Tortarolo
Sailboat range: Jouët
Country: France
Construction: Hull and deck: GRP (glass reinforced polyester)
First built hull: 1977
Last built hull: 1982
Appendages: Keel : fin without bulb
Helm: Single tiller
Rudder: Single transom hung rudder
Unsinkable: No
Trailerable: No
Former French navigation category: 3
Standard public price ex. VAT (indicative only): N/A €

Jouët 24's main dimensions

Hull length: 23’ 7”7.2 m
Waterline length: 21’6.4 m
Beam (width): 8’ 11”2.7 m
Draft: 4’ 11”1.5 m
Mast height from D_WL: 36’ 5”11.1 m
Light displacement (M_LC): 3858 lb1750 kg
Ballast weight: 1808 lb820 kg
Ballast type: Cast iron
French customs tonnage: 5.04 Tx

Jouët 24's rig and sails

Upwind sail area: 330 ft²30.7 m²
Downwind sail area: 242 ft²22.5 m²
Mainsail area: 135 ft²12.5 m²
Genoa area: 196 ft²18.2 m²
Jib area: 118 ft²11 m²
Symmetric spinnaker area: 108 ft²10 m²
P iMainsail hoist measurement (from tack to head): 27’ 7”8.4 m
E iMainsail foot measurement (from tack to clew): 8’ 11”2.7 m
Rigging type: Sloop Marconi 7/8
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 1
Spreaders angle: Swept-back
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire continuous

Jouët 24's performances

HN (French rating) iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats.: 10.0
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.: 228 ft²/T21.14 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.: 167 ft²/T15.49 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.: 189
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.: 47 %
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.: 6.14 knots