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Sailboat specifications and datasheets

First 456 s / Deep draft

The First 456, here in "s / Deep draft" version, is a 45’10” offshore monohull sailboat designed by German Frers. She was built by Bénéteau (France) and made of GRP (glass reinforced polyester). This sailboat was produced between 1982 and 1987.

The First 456 belongs to the First range. The First 456 is as well listed, on Boat-Specs.com, in version Deep draft and Shoal draft.

Bénéteau First 456 Bénéteau First 456 sailplanBénéteau First 456 layoutBénéteau First 456 layoutBénéteau First 456 sailingBénéteau First 456 sailingBénéteau First 456 sailingBénéteau First 456 cockpitBénéteau First 456 accommodationsBénéteau First 456 accommodations
First 456's   Main Features
Model First 456
Version S / Deep draft
Type of hull Monohull
Category Offshore cruiser-racer sailboat
Shipyard
Designer German Frers
Range First
Construction GRP (glass reinforced polyester)
First built hull 1982
Last built hull 1987
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 456's   Main dimensions
Length overall 46’ 7”
Hull length 45’ 10”
Waterline length 39’ 5”
Beam (width) 14’ 1”
Draft 7’ 11”
Light displacement 26455 lbs
Ballast weight 10362 lbs
First 456's   Rig and sails
Upwind sail area 1362 sq.ft
Downwind sail area 2266 sq.ft
Mainsail area 490 sq.ft
Genoa area 872 sq.ft
Jib area 431 sq.ft
Stormjib area 161 sq.ft
Symetric spinnaker area 1776 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Number of levels of spreaders 2
Spreaders angle 0 °
First 456'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.
24.13
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.
40.16
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.
197
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.
8.41 knots
First 456's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 55 HP / 80 HP
Fuel type Diesel
Fuel tank capacity 52.8 gal
First 456's   Accommodation
Cabin(s) (min/max) 2 / 4
Berth(s) (min/max) 4 / 10
Head(s) (min/max) 2 / 3
Fresh water tank capacity 105.7 gal
Water heater capacity 11.1 gal

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