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Sailboat specifications and datasheets

First 24

The First 24 is a 24’7” monohull sailboat designed by Jean Marie Finot. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1982 and 1985 with 677 hulls completed.

The First 24 belongs to the First range.

Bénéteau First 24 Bénéteau First 24 sailplanBénéteau First 24 layoutBénéteau First 24 sailingBénéteau First 24 accommodations
First 24's   Main Features
Model First 24
Type of hull Monohull
Shipyard
Designer Jean Marie Finot
Range First
Construction Hull and deck:
monolithic fiberglass / polyester
First built hull 1982
Last built hull 1985
Number of hulls built 677
Appendages Keel :
Fin without bulb
Helm 1 tiller
Rudder 1 transom hung rudder
Unsinkable No
Trailerable Yes
French navigation category 3
Standard public price ex. VAT (indicative only) N/A
First 24's   Main dimensions
Length overall 26’ 2”
Hull length 24’ 7”
Waterline length 20’ 8”
Beam (width) 8’ 2”
Draft 4’
Light displacement 3307 lbs
Ballast weight 1102 lbs
Ballast type Cast iron
First 24's   Rig and sails
Upwind sail area 351 sq.ft
Downwind sail area 624 sq.ft
Mainsail area 161 sq.ft
Genoa area 189 sq.ft
Solent area 141 sq.ft
Jib area 86 sq.ft
Stormjib area 43 sq.ft
Symetric spinnaker area 463 sq.ft
Rigging type Sloop Marconi 9/10
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle 0 °
IiFore triangle height (from mast foot to fore stay attachment) 28’ 2”
JiFore triangle base (from mast foot to bottom of forestay) 8’ 4”
PiMainsail hoist measurement (from tack to head) 26’ 2”
EiMainsail foot measurement (from tack to clew) 10’ 10”
First 24's   Performances
HN (French rating) 10.5
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.
24.88
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.
44.26
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.
170
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.
33 %
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.
6.09 knots
First 24's   Auxiliary engine
Engine(s) 1
Engine type Outboard engine
Engine 10 HP
Fuel type Gas
First 24's   Accommodation
Cabin(s) 1
Berth(s) 5
Head(s) 1
Fresh water tank capacity 13.2 gal
Galley headroom 5’ 6”
Head headroom 4’ 10”
First 24's   Saloon
Maximum headroom 5’ 6”
Saloon table length 3’ 2”
Saloon table width 2’ 8”
Saloon width 5’ 10”
Berth length 5’ 11”
Berth width (head/elbows/knees/feet) 1’ 11”
1’ 10”
1’ 6”
1’ 4”
First 24's   Fore cabin
Berth length 7’ 2”
Berth width (head/elbows/knees/feet) 5’ 5”
4’ 7”
3’ 8”
2’ 11”
First 24's   Aft cabin
Maximum headroom 4’ 10”
Berth length 6’ 7”
Berth width (head/elbows/knees/feet) 4’ 4”
4’ 2”
3’ 8”
3’ 1”

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