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Sailboat specifications and datasheets

First 36s7 wing keel

The First 36s7, here in "wing keel" version, is a 34’5” offshore monohull sailboat designed by Jean Berret. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1995 and 1998 with about 50 hulls completed.

The First 36s7 belongs to the First range. The First 36s7 is as well listed, on Boat-Specs.com, in version Deep draft and Regatta.

Bénéteau First 36s7 Bénéteau First 36s7 sailplanBénéteau First 36s7 layoutBénéteau First 36s7 sailingBénéteau First 36s7 sailingBénéteau First 36s7 sailingBénéteau First 36s7 sailingBénéteau First 36s7 accommodationsBénéteau First 36s7 accommodationsBénéteau First 36s7 accommodationsBénéteau First 36s7 accommodations
First 36s7's   Main Features
Model First 36s7
Version Wing keel
Type of hull Monohull
Shipyard
Designer Jean Berret
Range First
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1995
Last built hull 1998
Number of hulls built About 50
Appendages Keel :
Wing keel
Helm 1 tiller
Rudder 1 spade rudder
Unsinkable No
Trailerable No
French navigation category 1
Standard public price ex. VAT (indicative only) N/A
First 36s7's   Main dimensions
Length overall 35’ 10”
Hull length 34’ 5”
Waterline length 31’ 2”
Beam (width) 12’ 6”
Draft 5’ 1”
Light displacement 12787 lbs
Ballast weight 3748 lbs
French customs tonnage 12.60 Tx
First 36s7's   Rig and sails
Upwind sail area 791 sq.ft
Downwind sail area 1222 sq.ft
Mainsail area 355 sq.ft
Genoa area 436 sq.ft
Symetric spinnaker area 866 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire discontinuous
Number of levels of spreaders 2
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 44’ 7”
JiFore triangle base (from mast foot to bottom of forestay) 13’
PiMainsail hoist measurement (from tack to head) 41’ 8”
EiMainsail foot measurement (from tack to clew) 15’ 1”
First 36s7'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.
22.77
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.
35.16
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.
190
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.
29 %
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.
7.49 knots
First 36s7's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Fuel type Diesel
Fuel tank capacity 23.8 gal
First 36s7's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Head(s) 1
Fresh water tank capacity 79.3 gal
Water heater capacity 5.8 gal
Fridge/ice-box capacity 26.4 gal
Maximum headroom 6’ 2”
First 36s7's   Fore cabin
Berth length 7’ 2”
Berth width 5’ 7”
First 36s7's   Aft cabin
Berth length 6’ 7”
Berth width 4’ 7”

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