Eolia 25 Keel and centerboard

Sailboat specifications

The Eolia 25 is a 23’7” (7.2m) cruising sailboat designed by Philippe Briand (France). She was built between 1985 and 1989 by Jeanneau (France) with 1288 hulls completed. The Keel and centerboard version features a centerboard inside of a short fin-keel allowing shoal draft while maintaining upwind capabilities.

The Eolia 25 is as well listed, on Boat-Specs.com, in Fin keel version (see all the versions compared).

Eolia 25's main features

Model: Eolia 25
Version: Keel and centerboard
Hull type: Monohull
Category: Coastal cruising sailboat
Sailboat builder: Jeanneau
Sailboat designer: Philippe Briand
Country: France
Construction: GRP (glass reinforced polyester):
Single skin fiberglass polyester
Number of hulls built: 1288
First built hull: 1985
Last built hull: 1989
Appendages: Centerboard : pivoting centerboard in the keel
Helm: Single tiller
Rudder: Single transom hung rudder
Unsinkable: No
Trailerable: No
Former French navigation category: 3
Standard public price ex. VAT (indicative only): N/A €

Eolia 25's main dimensions

Overall length: 24’ 7”7.5 m
Hull length: 23’ 7”7.2 m
Waterline length: 21’ 8”6.6 m
Beam (width): 9’ 2”2.8 m
Draft: 5’ 11”1.8 m
Draft when appendages up: 2’ 7”0.78 m
Light displacement (M_LC): 4034 lb1830 kg
Ballast weight: 1830 lb830 kg
Ballast type: Cast iron exterior ballast with steel centerboard
French customs tonnage: 5.14 Tx

Eolia 25's rig and sails

Upwind sail area: 323 ft²30.03 m²
Downwind sail area: 579 ft²53.83 m²
Mainsail area: 113 ft²10.5 m²
Genoa area: 210 ft²19.53 m²
Solent area: 147 ft²13.69 m²
Jib area: 92 ft²8.56 m²
Stormjib area: 41 ft²3.84 m²
Symmetric spinnaker area: 466 ft²43.33 m²
I iFore triangle height (from mast foot to fore stay top attachment): 29’ 11”9.12 m
J iFore triangle base (from mast foot to bottom of forestay): 9’ 2”2.79 m
P iMainsail hoist measurement (from tack to head): 24’ 11”7.6 m
E iMainsail foot measurement (from tack to clew): 8’ 2”2.49 m
Rigging type: Sloop Marconi masthead
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 1
Spreaders angle: 0 °
Spars construction: Aluminum spars
Standing rigging: 1x19 strand wire continuous

Eolia 25'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.: 8.0
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.: 216 ft²/T20.07 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.: 387 ft²/T35.98 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.: 180
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.: 45 %
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.: 6.24 knots

Eolia 25's auxiliary engine

Engine(s): 1 inboard engine
Engine(s) power (min./max.): 7 HP / 10 HP
Fuel type: Diesel

Eolia 25's accommodations and layout

Cockpit: Closed aft cockpit
Cabin(s): 1
Berth(s): 4
Head(s): 1
Freshwater tank capacity: 14.8 gal56 liters
Fridge/ice-box capacity: 13.2 gal50 liters
Galley headroom: 5’ 7”1.72 m
Head headroom: 5’ 8”1.75 m

Eolia 25's saloon

Maximum headroom: 5’ 4”1.62 m
Saloon table length: 3’ 8”1.12 m
Saloon table width: 2’ 1”0.64 m
Saloon width (min./max.): 3’ 1”0.93 m / 7’ 5”2.25 m

Eolia 25's fore cabin

Berth length: 7’ 2”2.2 m
Berth width (head/elbows/knees/feet): 5’ 6”1.68 m / 4’ 7”1.4 m / 3’ 6”1.08 m / 1’ 7”0.48 m

Eolia 25's aft cabin

Maximum headroom: 5’ 8”1.75 m
Berth length: 6’ 6”1.97 m
Berth width (head/elbows/knees/feet): 4’ 7”1.4 m / 4’ 1”1.26 m / 3’ 5”1.04 m / 2’ 7”0.8 m