Sun Liberty 34 Standard

Sailboat specifications

The Sun Liberty 34 is a 32’8” (9.98m) cruising sailboat designed by Andrieu Yacht Design (France). She was built between 1989 and 1992 by Jeanneau (France) with 284 hulls completed.

The Sun Liberty 34 is as well listed, on Boat-Specs.com, in Shoal draft version (see all the versions compared).

Sun Liberty 34's main features

Model: Sun Liberty 34
Version: Standard
Hull type: Monohull
Category: Cruising sailboat
Sailboat builder: Jeanneau
Sailboat designer: Andrieu Yacht Design
Country: France
Construction: Hull and deck: GRP (glass reinforced polyester)
Number of hulls built: 284
First built hull: 1989
Last built hull: 1992
Appendages: Keel : L-shaped keel (with bulb)
Helm: Single helm wheel
Rudder: Single spade rudder
Unsinkable: No
Trailerable: No
Former French navigation category: 1
Standard public price ex. VAT (indicative only): N/A €

Sun Liberty 34's main dimensions

Overall length: 33’ 10”10.3 m
Hull length: 32’ 8”9.98 m
Waterline length: 26’ 5”8.04 m
Beam (width): 11’ 6”3.5 m
Waterline beam (width): 8’ 8”2.64 m
Draft: 6’ 2”1.9 m
Light displacement (M_LC): 10362 lb4700 kg
Ballast weight: 3351 lb1520 kg

Sun Liberty 34's rig and sails

Upwind sail area: 661 ft²61.4 m²
Downwind sail area: 1102 ft²102.39 m²
Mainsail area: 287 ft²26.64 m²
Genoa area: 374 ft²34.76 m²
Symmetric spinnaker area: 815 ft²75.75 m²
I iFore triangle height (from mast foot to fore stay top attachment): 40’ 8”12.4 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): 34’ 5”10.5 m
E iMainsail foot measurement (from tack to clew): 13’ 7”4.15 m
Rigging type: Sloop Marconi masthead
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

Sun Liberty 34'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.: 236 ft²/T21.88 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.: 393 ft²/T36.49 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.: 256
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.: 32 %
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.: 6.88 knots