Fruit de mer Fin keel

Sailboat specifications

The Fruit de mer is a 35’7” (10.85m) cruising sailboat designed by Joubert Nivelt Design (France). She was built between 1981 and 1986 by Form'Océan (France). The Fin keel version adopts a classical fin configuration, the easiest option to provide a low center of gravity.

The Fruit de mer is as well listed, on Boat-Specs.com, in Centerboard (Trunk) version (see all the versions compared).

Fruit de mer's main features

Model: Fruit de mer
Version: Fin keel
Hull type: Monohull
Category: Offshore cruising sailboat
Sailboat builder: Form'Océan
Sailboat designer: Joubert Nivelt Design
Country: France
Construction: Hull and deck: steel
Number of hulls built: About 150
First built hull: 1981
Last built hull: 1986
Appendages: Keel : fin without bulb
Helm: Single helm wheel
Rudder: Single spade rudder
Unsinkable: No
Trailerable: No
Former French navigation category: 1
Standard public price ex. VAT (indicative only): N/A €

Fruit de mer's main dimensions

Hull length: 35’ 7”10.85 m
Waterline length: 29’ 11”9.1 m
Beam (width): 12’ 5”3.78 m
Draft: 6’ 1”1.85 m
Mast height from D_WL: 49’ 2”15 m
Light displacement (M_LC): 14881 lb6750 kg
Ballast weight: 7165 lb3250 kg
French customs tonnage: 11.40 Tx

Fruit de mer's rig and sails

Upwind sail area: 789 ft²73.3 m²
Mainsail area: 294 ft²27.3 m²
Genoa area: 495 ft²46 m²
Rigging type: Sloop Marconi masthead
Mast configuration: Deck stepped mast
Rotating spars: No
Spreaders angle: No spreader
Spars construction: Aluminum spars

Fruit de mer'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.: 221 ft²/T20.52 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.: 254
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.: 48 %
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.: 7.32 knots