First 33.7 Deep draft

Sailboat specifications

The First 33.7 is a 32’2” (9.8m) cruiser-racer sailboat designed by Berret Racoupeau Yachts Design (France). She was built between 1996 and 2000 by Bénéteau (France). The Deep draft version offers a deeper L-shaped keel bringing extra performance especially upwind.

The First 33.7 is as well listed, on Boat-Specs.com, in Standard version (see all the versions compared).

First 33.7's main features

Model: First 33.7
Version: Deep draft
Hull type: Monohull
Category: Cruiser-racer sailboat
Sailboat builder: Bénéteau
Sailboat designer: Berret Racoupeau Yachts 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 300
First built hull: 1996
Last built hull: 2000
Appendages: Keel : L-shaped keel (with bulb)
Helm: Single tiller
Rudder: Single spade rudder
Unsinkable: No
Trailerable: No
Former French navigation category: 1
Standard public price ex. VAT (indicative only): N/A €

First 33.7's main dimensions

Overall length: 32’ 8”9.98 m
Hull length: 32’ 2”9.8 m
Waterline length: 28’ 6”8.68 m
Beam (width): 11’ 2”3.4 m
Draft: 6’ 11”2.1 m
Mast height from D_WL: 52’ 6”16 m
Light displacement (M_LC): 10582 lb4800 kg
Ballast weight: 3307 lb1500 kg
Ballast type: Cast iron fin with lead bulb
French customs tonnage: 10.31 Tx

First 33.7's rig and sails

Upwind sail area: 694 ft²64.5 m²
Downwind sail area: 1060 ft²98.5 m²
Mainsail area: 328 ft²30.5 m²
Genoa area: 366 ft²34 m²
Symmetric spinnaker area: 732 ft²68 m²
I iFore triangle height (from mast foot to fore stay top attachment): 41’ 8”12.7 m
J iFore triangle base (from mast foot to bottom of forestay): 11’ 7”3.55 m
P iMainsail hoist measurement (from tack to head): 38’ 5”11.7 m
E iMainsail foot measurement (from tack to clew): 14’ 7”4.45 m
Rigging type: Sloop Marconi 19/20
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: Swept-back
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire discontinuous

First 33.7's performances

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.: 244 ft²/T22.67 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.: 373 ft²/T34.62 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.: 208
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.: 31 %
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.: 7.15 knots