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Sailboat specifications and datasheets

First 345 deep draft

The First 345, here in "deep draft" version, is a 34’7” offshore monohull sailboat designed by Jean Berret. She was built by Bénéteau (France) and made of GRP (glass reinforced polyester). This sailboat was produced between 1983 and 1988 with about 80 hulls completed.

The First 345 belongs to the First range. The First 345 is as well listed, on Boat-Specs.com, in version Shoal draft.

Bénéteau First 345 Bénéteau First 345 sailplanBénéteau First 345 layoutBénéteau First 345 sailingBénéteau First 345 accommodationsBénéteau First 345 accommodationsBénéteau First 345 accommodations
First 345's   Main Features
Model First 345
Version Deep draft
Type of hull Monohull
Category Cruiser-racer sailboat
Shipyard
Designer Jean Berret
Range First
Construction GRP (glass reinforced polyester)
First built hull 1983
Last built hull 1988
Number of hulls built About 80
Appendages Keel :
Fin without bulb
Helm 1 tiller
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 345's   Main dimensions
Length overall 36’ 1”
Hull length 34’ 7”
Waterline length 29’ 2”
Beam (width) 11’ 6”
Draft 6’ 2”
Light displacement 11244 lbs
Ballast weight 4409 lbs
Ballast type Cast iron
French customs tonnage 10.30 Tx
First 345's   Rig and sails
Upwind sail area 689 sq.ft
Downwind sail area 1218 sq.ft
Mainsail area 258 sq.ft
Genoa area 431 sq.ft
Jib area 248 sq.ft
Stormjib area 82 sq.ft
Symetric spinnaker area 960 sq.ft
Rigging type Sloop Marconi fractional
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire
Number of levels of spreaders 2
Spreaders angle Swept-back
First 345'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.
21.60
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.
38.19
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.
205
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.
39 %
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.
7.24 knots
First 345's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 18 HP
Fuel type Diesel
Fuel tank capacity 22.5 gal
First 345's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 6 / 8
Head(s) 1
Fresh water tank capacity 105.7 gal
Maximum headroom 6’ 4”

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