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Sailboat specifications and datasheets

First 45 shoal draft

The First 45, here in "shoal draft" version, is a 44’11” monohull sailboat designed by Philippe Briand. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. The production started in 2007 .

The First 45 belongs to the First range. The First 45 is as well listed, on Boat-Specs.com, in version Standard and Regatta.

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First 45's   Main Features
Model First 45
Version Shoal draft
Type of hull Monohull
Category Offshore cruiser-racer sailboat
Shipyard
Designer Philippe Briand
Range First
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / thermo-plastic Tecrothène 109, rotomolded / polyester
First built hull 2007
Last built hull Discontinued
Appendages Keel :
Wing keel
Helm 2 wheels
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) N/A
First 45's   Main dimensions
Length overall 46’ 2”
Hull length 44’ 11”
Waterline length 39’ 5”
Beam (width) 13’ 10”
Draft 6’ 7”
Mast height from DWL 68’ 1”
Light displacement 26819 lbs
Ballast weight 9877 lbs
Ballast type Cast iron
French customs tonnage 21.00 Tx
First 45's   Rig and sails
Upwind sail area 1248 sq.ft
Downwind sail area 2104 sq.ft
Mainsail area 597 sq.ft
Genoa area 650 sq.ft
Symetric spinnaker area 1507 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Standing rigging Dyform discontinuous
Number of levels of spreaders 3
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 56’ 11”
JiFore triangle base (from mast foot to bottom of forestay) 17’ 6”
PiMainsail hoist measurement (from tack to head) 55’ 10”
EiMainsail foot measurement (from tack to clew) 18’
First 45'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.
21.91
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.
36.96
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.
199
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.
37 %
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 45's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 54 HP
Fuel type Diesel
Fuel tank capacity 52.8 gal
First 45's   Accommodation
Cabin(s) 3
Berth(s) (min/max) 6 / 8
Head(s) 2
Fresh water tank capacity 150.6 gal
Water heater capacity 10.6 gal
Holding tank capacity 42.3 gal
Fridge/ice-box capacity 21.1 gal
Maximum headroom 6’ 6”
Galley headroom 6’ 6”
Head headroom 6’ 4”
First 45's   Saloon
Maximum headroom 6’ 5”
First 45's   Fore cabin
Maximum headroom 6’ 4”
Berth length 6’ 7”
Berth width 4’ 11”
First 45's   Aft cabin
Maximum headroom 6’ 5”
Berth length 6’ 7”
Berth width (head/feet) 4’ 7”
3’ 11”

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