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Sailboat specifications and datasheets

Konsort Duo 29

The Konsort Duo 29 is a 28’11” monohull sailboat designed by John Laurent Giles. She was built by Westerly (United Kingdom) and made of GRP (glass reinforced polyester). This sailboat was produced between 1985 and 1988 with 108 hulls completed.
Westerly  Konsort Duo 29 Westerly  Konsort Duo 29 sailplan
Konsort Duo 29's   Main Features
Model Konsort Duo 29
Type of hull Monohull
Category Motorsailer
Shipyard
Designer John Laurent Giles
Construction GRP (glass reinforced polyester)
First built hull 1985
Last built hull 1988
Number of hulls built 108
Appendages Twin keel :
Fin without bulb
Helm 1 tiller
Rudder 1 transom hung rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
Standard public price ex. VAT (indicative only) N/A
Konsort Duo 29's   Main dimensions
Hull length 28’ 11”
Waterline length 25’ 7”
Beam (width) 10’ 10”
Draft 3’ 4”
Mast height from DWL 35’ 8”
Light displacement 10097 lbs
Ballast weight 3197 lbs
Ballast type Cast iron
Konsort Duo 29's   Rig and sails
Upwind sail area 516 sq.ft
Downwind sail area 917 sq.ft
Mainsail area 177 sq.ft
Genoa area 339 sq.ft
Solent area 249 sq.ft
Jib area 167 sq.ft
Stormjib area 67 sq.ft
Symetric spinnaker area 740 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle 0 °
Konsort Duo 29'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.
17.38
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.
30.88
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.
272
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.
32 %
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.
6.78 knots
Konsort Duo 29's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 28 HP
Fuel type Diesel
Fuel tank capacity 59.4 gal
Konsort Duo 29's   Accommodation
Cabin(s) 1
Berth(s) (min/max) 2 / 4
Head(s) 1
Fresh water tank capacity 118.9 gal

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