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Sailboat specifications and datasheets

Gib'Sea 96 deep draft

The Gib'Sea 96, here in "deep draft" version, is a 31’10” monohull sailboat designed by Michel Joubert and Bernard Nivelt. She was built by Gibert Marine (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1983 and 1987 with 236 hulls completed.

The Gib'Sea 96 belongs to the Gib'Sea range.

Gibert Marine Gib'Sea 96 Gibert Marine Gib'Sea 96 sailplanGibert Marine Gib'Sea 96 layoutGibert Marine Gib'Sea 96 layoutGibert Marine Gib'Sea 96 accommodations
Gib'Sea 96's   Main Features
Model Gib'Sea 96
Version Deep draft
Type of hull Monohull
Shipyard
Designer Michel Joubert
Bernard Nivelt
Range Gib'Sea
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1983
Last built hull 1987
Number of hulls built 236
Appendages Keel :
Fin without bulb
Helm 1 tiller (helm wheel in option)
Rudder 1 semi-spade rudder
Unsinkable No
Trailerable No
French navigation category 2
Standard public price (indicative only) N/A
Gib'Sea 96's   Main dimensions
Length overall 33’ 1”
Hull length 31’ 10”
Waterline length 27’ 1”
Beam (width) 10’ 10”
Waterline beam (width) 9’ 1”
Draft 5’ 8”
Mast height from DWL 45’ 4”
Fore freeboard 3’ 8”
Mid-ship freeboard 3’ 1”
Light displacement 9678 lbs
Maximum displacement 11684 lbs
Ballast weight 2646 lbs
Ballast type Cast iron
French customs tonnage 10.21 Tx
Gib'Sea 96's   Rig and sails
Upwind sail area 637 sq.ft
Downwind sail area 1047 sq.ft
Mainsail area 240 sq.ft
Genoa area 397 sq.ft
Solent area 296 sq.ft
Jib area 174 sq.ft
Stormjib area 70 sq.ft
Symetric spinnaker area 807 sq.ft
Rigging type Sloop Marconi fractional
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle 0 °
IiFore triangle height (from mast foot to fore stay attachment) 40’
JiFore triangle base (from mast foot to bottom of forestay) 12’ 1”
PiMainsail hoist measurement (from tack to head) 36’ 1”
EiMainsail foot measurement (from tack to clew) 11’ 10”
Gib'Sea 96's   Performances
HN (French rating) 16.5
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.
22.08
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.
36.29
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.
221
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.
27 %
Wetted surface 244 sq.ft
Righting moment @ 1°iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after a rotational displacement. Its value corresponds to the torque needed to heel the boat for this angle.
Higher the righting moment is for an angle, greater is the stability at this angle.
574 lbs.ft
Maximum transverse section 13 sq.ft
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.
6.98 knots
Gib'Sea 96's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 18 HP / 28 HP
Fuel type Diesel
Fuel tank capacity 26.4 gal
Gib'Sea 96's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 6 / 8
Head(s) 1
Fresh water tank capacity 66 gal
Maximum headroom 6’ 2”
Galley headroom 6’
Head headroom 5’ 6”
Gib'Sea 96's   Saloon
Maximum headroom 6’
Saloon table length 3’ 1”
Saloon table width (min/max) 3’
Berth length 6’ 2”
Berth width 2’ 10”
Gib'Sea 96's   Fore cabin
Maximum headroom 5’ 6”
Berth length 6’ 1”
Berth width 5’ 2”
Gib'Sea 96's   Aft cabin
Maximum headroom 5’ 10”
Berth length 6’ 1”
Berth width 4’ 6”

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