First 40.7 Shoal draft

Sailboat specifications

The First 40.7 is a 39’1” (11.92m) cruiser-racer sailboat designed by Farr Yacht Design (United States). She was built between 1997 and 2008 by Bénéteau (France). The Shoal draft version features a shorter keel to grant access to shallow areas.

The First 40.7 is as well listed, on Boat-Specs.com, in Deep draft version (see all the versions compared).

First 40.7's main features

Model: First 40.7
Version: Shoal 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 550
First built hull: 1997
Last built hull: 2008
Appendages: Keel : L-shaped keel (with 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 40.7's main dimensions

Overall length: 39’ 11”12.17 m
Hull length: 39’ 1”11.92 m
Waterline length: 34’ 10”10.62 m
Beam (width): 12’ 5”3.78 m
Draft: 6’ 2”1.9 m
Mast height from D_WL: 58’ 8”17.9 m
Light displacement (M_LC): 15366 lb6970 kg
Ballast weight: 5952 lb2700 kg
Ballast type: Cast iron
French customs tonnage: 15.54 Tx

First 40.7's rig and sails

Upwind sail area: 1021 ft²94.87 m²
Downwind sail area: 1612 ft²149.73 m²
Mainsail area: 485 ft²45.02 m²
Genoa area: 537 ft²49.85 m²
Symmetric spinnaker area: 1127 ft²104.71 m²
I iFore triangle height (from mast foot to fore stay top attachment): 51’ 2”15.61 m
J iFore triangle base (from mast foot to bottom of forestay): 14’ 6”4.41 m
P iMainsail hoist measurement (from tack to head): 48’ 11”14.89 m
E iMainsail foot measurement (from tack to clew): 17’ 8”5.4 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 (carbon fiber spars as an option)

First 40.7'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.: 30.0
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.: 280 ft²/T26 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.: 442 ft²/T41.03 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.: 165
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.: 39 %
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.: 7.91 knots