First 36.7 Deep draft

Sailboat specifications

The First 36.7 is a 35’ (10.68m) cruiser-racer sailboat designed by Farr Yacht Design (United States). She was built between 2002 and 2008 by Bénéteau (France). The Deep draft version displays a deep lead fin offering high righting moment and low drag.

The First 36.7 is as well listed, on Boat-Specs.com, in Shoal draft version (see all the versions compared).

First 36.7's main features

Model: First 36.7
Version: Deep draft
Hull type: Monohull
Category: Cruiser-racer sailboat
Sailboat builder: Bénéteau
Sailboat designer: Farr Yacht Design
Sailboat range: First
Country: France
Construction: GRP (glass reinforced polyester):
- Hull: Single skin fiberglass polyester
- Deck: Sandwich balsa fiberglass polyester
Number of hulls built: About 800
First built hull: 2002
Last built hull: 2008
Appendages: Keel : fin without bulb
Helm: Single helm wheel
Rudder: Single spade rudder
Unsinkable: No
Trailerable: No
EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions) A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m: A
Standard public price ex. VAT (indicative only): N/A €

First 36.7's main dimensions

Overall length: 36’10.98 m
Hull length: 35’10.68 m
Waterline length: 30’ 4”9.23 m
Beam (width): 11’ 4”3.45 m
Draft: 7’ 2”2.2 m
Mast height from D_WL: 55’ 10”17 m
Light displacement (M_LC): 12941 lb5870 kg
Ballast weight: 3851 lb1747 kg
Ballast type: Lead
French customs tonnage: 11.75 Tx

First 36.7's rig and sails

Upwind sail area: 833 ft²77.38 m²
Downwind sail area: 1419 ft²131.87 m²
Mainsail area: 397 ft²36.84 m²
Genoa area: 436 ft²40.54 m²
Symmetric spinnaker area: 1023 ft²95.03 m²
I iFore triangle height (from mast foot to fore stay top attachment): 46’ 5”14.15 m
J iFore triangle base (from mast foot to bottom of forestay): 13’3.97 m
P iMainsail hoist measurement (from tack to head): 45’ 5”13.85 m
E iMainsail foot measurement (from tack to clew): 15’ 7”4.75 m
Rigging type: Sloop Marconi 9/10
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: 20 °
Spars construction: Aluminum spars

First 36.7's performances

HN (French rating) iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats.: 26.5
Upwind sail area to displacement iThe 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 25 it indicates a fast sailboat.: 256 ft²/T23.78 m²/T
Downwind sail area to displacement iThe 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.: 436 ft²/T40.52 m²/T
Displacement-length ratio (DLR) iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The 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.: 211
Ballast ratio iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared. The higher the ballast ratio is, the greater is the stability.: 30 %
Prismatic coefficient iThe prismatic coefficient is obtained by dividing the volume of the boat (mass divided by the density of water) by the waterline length multiplied by the area of the maximum transverse section. This coefficient describes the effectiveness of a sailboat for a certain speed range: lower is the coefficient (<0.45), more effective the yacht is below its hull speed; higher the coefficient is, more the boat is suitable for planning speed.: 0.57
Righting moment @ 30° iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after heeling. Its value corresponds to the torque needed to heel the boat for this angle. Higher the righting moment is for an angle, greater is the stability.: 28932 lb.ft4000 kg.m
Maximum righting moment iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after heeling. Its value corresponds to the torque needed to heel the boat for this angle. Higher the righting moment is for an angle, greater is the stability.: 36165 lb.ft5000 kg.m @ 55.00 °
Critical hull speed iAs 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.: 7.37 knots