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Sailboat specifications and datasheets

Optio swing keel

The Optio, here in "swing keel" version, is a 29’6” coastal monohull sailboat designed by Jean Berret and Olivier Racoupeau. She was built by Wauquiez (France) and made of sandwich balsa / E-glass / vinylester (composite infusion). The production started in 2014 .

The Optio is as well listed, on Boat-Specs.com, in version Fin keel.

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Optio's   Main Features
Model Optio
Version Swing keel
Type of hull Monohull
Category Dayboat
Cockpit Open aft cockpit
Shipyard
Designer Jean Berret
Olivier Racoupeau
Construction Hull and deck:
sandwich balsa / E-glass / vinylester (composite infusion)
First built hull 2014
Last built hull Still in production
Appendages Keel (lifting) :
Swing keel
Helm 1 tiller
Rudder 2 spade rudders
Unsinkable No
Trailerable Yes
EC certification C
Standard public price ex. VAT (indicative only) About
94 500
(2017)
Optio's   Main dimensions
Hull length 29’ 6”
Waterline length 28’ 1”
Beam (width) 8’ 4”
Draft 7’ 2”
Draft when appendages up 3’ 4”
Mast height from DWL 43’ 4”
Light displacement 4409 lbs
Ballast weight 1984 lbs
Ballast type Cast iron
Optio's   Rig and sails
Upwind sail area 468 sq.ft
Downwind sail area 1039 sq.ft
Mainsail area 285 sq.ft
Jib area 183 sq.ft
Asymetric spinnaker area 753 sq.ft
Code 0 area 495 sq.ft
Rigging type Sloop Marconi (square top mainsail) 9/10
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging Single-strand (ROD) discontinuous
Number of levels of spreaders 2
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 34’ 11”
JiFore triangle base (from mast foot to bottom of forestay) 11’ 10”
PiMainsail hoist measurement (from tack to head) 35’ 11”
EiMainsail foot measurement (from tack to clew) 11’ 6”
Optio's   Performances
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
27.40
Downwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
60.79
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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.
90
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
45 %
Hull speediAs 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.
7.11 knots
Optio's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 9 HP / 14 HP
Fuel type Diesel
Fuel tank capacity 10.6 gal
Optio's   Accommodation
Berth(s) (min/max) 2 / 4
Head(s) 1
Fresh water tank capacity 13.2 gal
Holding tank capacity 9.2 gal

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