The
Sun Dream 28 is a 27’1” (8.25m) cruising sailboat designed by
Tony Castro Yacht Design (Argentina). She was built between 1987 and 1991 by
Jeanneau (France) with 407 hulls completed. The
Fin keel version adopts a classical fin configuration, the easiest option to provide a low center of gravity.
The
Sun Dream 28 is as well listed, on Boat-Specs.com, in
Keel and centerboard version (
see all the versions compared).
Sun Dream 28's main features
Model
Sun Dream 28
Version
Fin keel
Hull type
Monohull
Category
Cruising sailboat
Sailboat builder
Sailboat designer
Country
France
Construction
GRP (glass reinforced polyester):
Single skin fiberglass polyester
Number of hulls built
407
First built hull
1987
Last built hull
1991
Appendages
Keel : fin without bulb
Helm
Single tiller
Rudder
Single transom hung rudder
Unsinkable
No
Trailerable
No
Former French navigation category
2
Standard public price ex. VAT (indicative only)
Sun Dream 28's main dimensions
Overall length
29’ 6”9 m
Hull length
27’ 1”8.25 m
Waterline length
24’ 6”7.46 m
Beam (width)
10’ 4”3.15 m
Draft
5’ 5”1.66 m
Mast height from DWL
41’ 5”12.62 m
Light displacement (MLC)
5952 lb2700 kg
Ballast weight
2359 lb1070 kg
Ballast type
Cast iron
French customs tonnage
7.06 Tx
Sun Dream 28's rig and sails
Upwind sail area
484 ft²44.93 m²
Downwind sail area
868 ft²80.6 m²
Mainsail area
184 ft²17.1 m²
Genoa area
300 ft²27.83 m²
Solent area
249 ft²23.09 m²
Jib area
157 ft²14.6 m²
Stormjib area
53 ft²4.9 m²
Symmetric spinnaker area
684 ft²63.5 m²
I
iFore triangle height (from mast foot to fore stay top attachment)35’ 4”10.75 m
J
iFore triangle base (from mast foot to bottom of forestay)11’ 8”3.57 m
P
iMainsail hoist measurement (from tack to head)30’ 2”9.2 m
E
iMainsail foot measurement (from tack to clew)10’ 10”3.3 m
Rigging type
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
1
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire continuous
Sun Dream 28'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.15.0
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.249 ft²/T23.17 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.447 ft²/T41.57 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.184
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.40 %
Wetted area
184 ft²17.06 m²
Righting moment @ 1°
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.454 lb.ft63 kg.m
Maximum transverse section
10 ft²0.94 m²
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 1.34.6.63 knots
Sun Dream 28's auxiliary engine
Engine(s)
1 inboard engine
Engine(s) power
18 HP
Fuel type
Diesel
Fuel tank capacity
7.1 gal27 liters
Sun Dream 28's accommodations and layout
Cockpit
Closed aft cockpit
Cabin(s)
2
Berth(s)
6
Head(s)
1
Freshwater tank capacity
26.4 gal100 liters
Boiler capacity
19.8 gal75 liters
Maximum headroom
6’ 2”1.88 m
Galley headroom
5’ 11”1.8 m
Head headroom
5’ 11”1.8 m
Sun Dream 28's saloon
Maximum headroom
5’ 11”1.8 m
Saloon table length
3’ 11”1.18 m
Saloon table width (min./max.)
2’ 4”0.69 m / 2’ 10”0.86 m
Berth length
6’ 1”1.85 m
Chart table
2’0.6 m x 1’ 8”0.52 m
Berth width
1’ 10”0.55 m
Sun Dream 28's fore cabin
Maximum headroom
4’ 10”1.45 m
Berth length
6’ 2”1.9 m
Berth width
5’ 2”1.6 m
Sun Dream 28's aft cabin
Maximum headroom
5’ 11”1.8 m
Berth length
6’ 2”1.9 m
Berth width
4’ 4”1.3 m
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