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Sailboat specifications and datasheets

Gib'Sea 372 deep draft

The Gib'Sea 372, here in "deep draft" version, is a 35’10” offshore 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 1987 and 1992 with 116 hulls completed.

The Gib'Sea 372 belongs to the Gib'Sea range.

Gibert Marine Gib'Sea 372 Gibert Marine Gib'Sea 372 sailplanGibert Marine Gib'Sea 372 layoutGibert Marine Gib'Sea 372 accommodations
Gib'Sea 372's   Main Features
Model Gib'Sea 372
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 1987
Last built hull 1992
Number of hulls built 116
Appendages Keel :
Fin without bulb
Helm 1 tiller (helm wheel in option)
Rudder 1 semi-spade rudder
Unsinkable No
Trailerable No
French navigation category 1
Standard public price (indicative only) N/A
Gib'Sea 372's   Main dimensions
Length overall 37’ 7”
Hull length 35’ 10”
Waterline length 31’ 7”
Beam (width) 12’
Waterline beam (width) 10’ 2”
Draft 6’ 1”
Mast height from DWL 49’ 4”
Fore freeboard 4’ 4”
Mid-ship freeboard 3’ 6”
Light displacement 13558 lbs
Maximum displacement 16094 lbs
Ballast weight 4189 lbs
Ballast type Cast iron
French customs tonnage 12.97 Tx
Gib'Sea 372's   Rig and sails
Upwind sail area 752 sq.ft
Downwind sail area 1224 sq.ft
Mainsail area 277 sq.ft
Genoa area 475 sq.ft
Solent area 361 sq.ft
Jib area 223 sq.ft
Stormjib area 75 sq.ft
Symetric spinnaker area 947 sq.ft
Rigging type Sloop Marconi masthead
Spars Mast and boom in Aluminum
Number of levels of spreaders 2
Spreaders angle 0 °
IiFore triangle height (from mast foot to fore stay attachment) 44’ 4”
JiFore triangle base (from mast foot to bottom of forestay) 13’ 1”
PiMainsail hoist measurement (from tack to head) 39’ 5”
EiMainsail foot measurement (from tack to clew) 12’ 10”
Gib'Sea 372's   Performances
HN (French rating) 21.0
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.
20.81
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.
33.87
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.
196
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.
31 %
Wetted surface 309 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.
825 lbs.ft
Maximum transverse section 15 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.
7.53 knots
Gib'Sea 372's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 27 HP
Fuel type Diesel
Fuel tank capacity 21.1 gal
Gib'Sea 372's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 6 / 8
Head(s) 1
Fresh water tank capacity 84.5 gal
Chart table 2’ 8” x 2’ 6”
Maximum headroom 6’ 6”
Galley headroom 6’ 2”
Head headroom 6’
Gib'Sea 372's   Saloon
Maximum headroom 6’ 1”
Saloon table length 2’ 11”
Saloon table width (min/max) 3’ 5” / 3’ 8”
Berth length 6’ 7”
Berth width (head/elbows/knees/feet) 2’
Gib'Sea 372's   Fore cabin
Maximum headroom 6’
Berth length 6’ 11”
Berth width (head/elbows/knees/feet) 5’ 2”
3’ 11”
2’ 7”
1’ 4”
Gib'Sea 372's   Aft cabin
Maximum headroom 6’
Berth length 6’ 7”
Berth width (head/elbows/knees/feet) 5’ 2”
4’ 11”
4’ 7”
3’ 11”

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