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Sailboat specifications and datasheets

First 375 deep draft

The First 375, here in "deep draft" version, is a 37’ offshore monohull sailboat designed by Jean Berret. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1985 and 1989 with 270 hulls completed.

The First 375 belongs to the First range. The First 375 is as well listed, on Boat-Specs.com, in version Shoal draft.

Bénéteau First 375 Bénéteau First 375 sailplanBénéteau First 375 layoutBénéteau First 375 sailingBénéteau First 375 sailingBénéteau First 375 sailingBénéteau First 375 sailingBénéteau First 375 sailingBénéteau First 375 cockpitBénéteau First 375 accommodationsBénéteau First 375 accommodationsBénéteau First 375 accommodationsBénéteau First 375 accommodations
First 375's   Main Features
Model First 375
Version Deep draft
Type of hull Monohull
Category Cruiser-racer sailboat
Shipyard
Designer Jean Berret
Range First
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1985
Last built hull 1989
Number of hulls built 270
Appendages Keel :
Fin without bulb
Helm 1 wheel
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
French navigation category 1
Standard public price ex. VAT (indicative only) N/A
First 375's   Main dimensions
Length overall 38’ 1”
Hull length 37’
Waterline length 33’ 1”
Beam (width) 12’ 6”
Draft 6’ 6”
Light displacement 15432 lbs
Ballast weight 5291 lbs
First 375's   Rig and sails
Upwind sail area 817 sq.ft
Mainsail area 322 sq.ft
Genoa area 495 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire
Number of levels of spreaders 2
Spreaders angle 0 °
First 375's   Performances
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.
20.74
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.
192
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.
34 %
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.
7.71 knots
First 375's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 28 HP / 43 HP
Fuel type Diesel
Fuel tank capacity 25.1 gal
First 375's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Head(s) 1
Fresh water tank capacity 105.7 gal

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