Design

The Great Dane 28 looks rather like the Folkboat, but she has a fairly narrow beam compared to her length of 28 ft. Both her hull and complete coachroof/deck mouldings have always been made of GRP.

The cockpit coamings, wash-boards, hatches and locker-tops are of teak and her transom-hung rudder extends the full depth from transom to keel. This gives her a very traditional appearance. The propeller is sited in a cut-out of the rudder, giving it maximum protection from fouling. The long keel of encapsulated lead gives her a low centre of gravity and a 46% ballast ratio. The cut-away forefoot reduces some of the manoeuvrability difficulties traditionally associated with long-keeled boats in tight spaces.
The off-centre heavy teak main hatch slides on brass rails and the companionway is of a comfortable width and depth. Moving from cockpit to saloon is safe and made easy by the steps covering the forward end of the engine.
Below decks there is surprising headroom in the saloon- just over 6 ft. The layout varies a little, but a dinette to port is common. This converts to a small double berth and there is a galley and quarter berth to starboard, with foot space below the starboard cockpit seat. The generous use of teak below decks gives a warm, traditional appearance. The heads (to port) and hanging locker (to starboard) separate the saloon from the forward cabin with its V-berth, which has large lockers beneath it. The forepeak contains the anchor chain.
The engine is accessed easily by removing the cockpit sole.

Specifications

LOA 28' 0''ft. (8.5m)
LWL 21' 4'' (6.5m)
Beam 8' 2'' (2.5m)
Draft 4' 6'' (1.4m)
Displacement 8,500 lbs (3,855kg)
Ballast 3,900lbs (1,769kg)
Tonnage TM 7 tons
Sail Area 370 sq.ft. (34.4 sq.m)
Main 215 sq.ft., No.1 Jib 178 sq.ft., No.2 Jib 155 sq.ft.,
Storm Jib 75 sq.ft., Genoa 250 sq.ft., Spinnaker 608 sq.ft.
RORC Rating 17.75 approx.
Headroom 6' 0'' (1.8m)
Designer Aage Utzon
Builder Klauss Baess, Copenhagen

Any scan or copies of articles or original brochures with plan you'd like to send would be really appreciated!

Visit the picture page to see these numbers in 3D!

Hull and stability factors

Not being an expert at all, don't get upset if I'm wrong!
Great Dane 28 is relatively heavy and stiff, which means she will be slower, but comfortable offshore and will go well in rough seas. With a good ballast, she has a very good stability, even being more on the slim side. Her long roll period for a boat that size indicates a stable vessel. The angle of vanishing stability AVS is the angle of heel at which a boat capsizes (a larger ° is thus preferred) . Lightweight ocean production boats are now coming out with AVS of 110°. Anything added to the boat will reduce that, since it's placed above the center of gravity (radars, genoa furlers, and so on). On the other end of the scale is the Contessa 32 with a AVS of approx 152° and she was one of the only small boat to survive and finish the deadly race Fastnet in 79'. So our 138° AVS is pretty good for our 28 footer. The comfort factor represent a kind of livability offshore. It generally favors bigger boats on which people will generally feel more comfortable, except with smaller boat that have a heavy displacement and narrower beam! The capsize factor (CSF) is a measurement developed after that sadly '79 Fastnet (beam is compared to displacement - to determine whether a wave would capsize a boat) . Values less than 2 are supposed good, the lower the better (1 is a minimum and boats with values over 2 are not considered suitable for ocean races). But considering the actual results of the race, particularly the Contessa 32 finishing (and ahead of larger boats), some of the boats capsized must have had better CSF numbers than the Contessa's 1.77. I really don't know what it really means…

As a conclusion, the Great Dane is a well designed and well built little sailboat having good comfort and seaworthiness, but not the fastest racer (of today!). I've heard someone said once that you can have only 2 of the 3 following options for a sailboat: speed, comfort or cheap price! Well, I guess its acceleration at the start won't destabilize you and that you won't arrive first on the line, but you'll arrive there safely and happily…

Calculation found on www.boatdesign.net: A guy there even said she was supposed to be one of the best small cruiser ever built.
Based on Lh = 8,54 m, Lwl = 6,4 m, Bmax = 2,44 m, Bwl = 2,2 m (0.9*Bmax), Draught = 1,45 m, HD = 0,5 m (Guess), Displacement = 4195 kg, Ballast = 1798 kg, Sail area = 36,7 m2, Power = 18 HP. Length/Beam ratio (Lfl+Lh)/2B = 3,06 ; Ballast/Disp Ratio = 0,43 ; Displacement/Length Ratio D/L = 446,35; Sail Area/Disp. Ratio SA/D = 14,34 ; Power/ Disp. Ratio HP/D = 1,94 HP/ton ; Hull speed HSPD = 6,14 Kn ; Potential Maximum Speed PMS = 6,43 Kn ; Velocity Ratio VR = 1,05 ; Capsize Safety Factor CSF = 1,53 ; Motion Comfort Ratio MCR = 38,49 ; Angle of Vanishing Stability AVS = 138 º ; Heft Ratio HF = 1,61 (OK over 1) ; Roll Period T = 3,77 Sec ; Roll Acceleration Acc = 0,04 G's (Malaise 0.1+) ; Stability Index SI = 1,54 (Comfort: 1 – 1,1)

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