Elan 310 Deep draft

Sailboat specifications

The Elan 310 is a 30’4” (9.25m) cruiser-racer sailboat designed by Humphreys Yacht Design (United Kingdom). She was built since 2009 (and now discontinued) by Elan Yachts (Slovenia). The Deep draft version features a deeper T-shaped keel to grant extra performance especially upwind.

The Elan 310 is as well listed, on Boat-Specs.com, in Standard version (see all the versions compared).

Elan 310's main features

Model: Elan 310
Version: Deep draft
Hull type: Monohull
Category: Cruiser-racer sailboat
Sailboat builder: Elan Yachts
Sailboat designer: Humphreys Yacht Design
Country: Slovenia
Construction: Hull and deck: GRP (glass reinforced polyester)
First built hull: 2009
Last built hull: Discontinued
Appendages: Keel : T-shaped keel (with bulb)
Helm: Single tiller
Rudder: Twin spade rudders
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 €

Elan 310's main dimensions

Overall length: 31’ 4”9.55 m
Hull length: 30’ 4”9.25 m
Waterline length: 28’ 7”8.71 m
Beam (width): 10’ 7”3.22 m
Draft: 7’ 1”2.15 m
Light displacement (M_LC): 6063 lb2750 kg
Ballast weight: 1984 lb900 kg

Elan 310's rig and sails

Upwind sail area: 577 ft²53.62 m²
Downwind sail area: 1132 ft²105.15 m²
Mainsail area: 325 ft²30.15 m²
Genoa area: 253 ft²23.47 m²
Asymmetric spinnaker area: 807 ft²75 m²
Gennaker area: 807 ft²75 m²
I iFore triangle height (from mast foot to fore stay top attachment): 40’ 2”12.25 m
J iFore triangle base (from mast foot to bottom of forestay): 11’ 8”3.58 m
P iMainsail hoist measurement (from tack to head): 39’ 6”12.05 m
E iMainsail foot measurement (from tack to clew): 13’ 6”4.13 m
Rigging type: Sloop Marconi 9/10
Mast configuration: Keel stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: Swept-back
Spars construction: Aluminum spars

Elan 310'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.: 294 ft²/T27.32 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.: 577 ft²/T53.57 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.: 118
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.: 33 %
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.: 12296 lb.ft1700 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.: 17359 lb.ft2400 kg.m @ 75.00 °
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.: 7.16 knots