Detailed sailboat specifications and datasheets since 2015
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Daïmio

Sailboat specifications

The Daïmio is a 20’4” (6.2m) cruising sailboat designed by François Sergent (France). She was built between 1973 and 1983 by Constructions Nautique du Sud-Ouest, CNSO (France).

Daïmio's main features

Model
Daïmio
Hull type
Monohull
Category
Cruising sailboat
Sailboat builder
Sailboat designer
Country
France
Construction
Hull and deck: GRP (glass reinforced polyester)
Number of hulls built
About 800
First built hull
1973
Last built hull
1983
Appendages
Keel : fin without bulb
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

Daïmio's main dimensions

Overall length
23’7 m
Hull length
20’ 4”6.2 m
Waterline length
18’ 11”5.75 m
Beam (width)
7’ 11”2.4 m
Waterline beam (width)
6’ 7”2 m
Draft
3’ 7”1.1 m
Light displacement (MLC)
3086 lb1400 kg
Ballast weight
1389 lb630 kg
French customs tonnage
3.80 Tx

Daïmio's rig and sails

Upwind sail area
335 ft²31.15 m²
Downwind sail area
608 ft²56.5 m²
Mainsail area
124 ft²11.5 m²
Genoa area
212 ft²19.65 m²
Solent area
151 ft²14 m²
Jib area
109 ft²10.15 m²
Stormjib area
65 ft²6 m²
Symmetric spinnaker area
484 ft²45 m²
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

Daïmio'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.
268 ft²/T24.89 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.
486 ft²/T45.15 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.
209
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.
5.82 knots

Daïmio's auxiliary engine

Engine(s)
1 outboard or inboard engine
Engine(s) power (min./max.)
4 HP / 9 HP
Fuel type
Diesel for inboard engine, gas for outboard
Fuel tank capacity
6.6 gal25 liters

Daïmio's accommodations and layout

Cockpit
Closed aft cockpit
Berth(s) (min./max.)
2 / 4
Freshwater tank capacity
13.2 gal50 liters
Maximum headroom
5’ 4”1.63 m
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