Hodgsdon Bros. Alden Dolphin 47

Sailboat 47′ Since 1973

Overview

Builder
Hodgsdon Bros.
Model
Alden Dolphin 47
Type
Sailboat
Built
1973–1978
Designer
John G. Alden Assoc.
Hull
Long Keel
Hull material
Fiberglass
Rig
Staysail Ketch

Dimensions

Length overall
47′ (14.33 m)
Waterline length
37′ 4″ (11.37 m)
Beam
12′ 10″ (3.90 m)
Displacement
43,000 lb (19,504 kg)
Ballast
12,000 lb (5,443 kg)

Sails and rig

Sail area
920 sq ft (85.5 m²)
I (foretriangle height)
49′ 10″ (15.19 m)
J (foretriangle base)
19′ (5.79 m)
P (mainsail luff)
43′ (13.11 m)
E (mainsail foot)
19′ 3″ (5.87 m)

Design ratios

Sail area / displacement
12.0

Power from the sails for the boat's weight. Under 16 is modest, 16–20 a typical cruiser, over 20 lively.

Displacement / length
370

How heavy the boat is for its waterline. Under 200 is light, 200–300 moderate, over 300 heavy.

Ballast ratio
28%

Share of the weight that is ballast. Higher generally means stiffer in a breeze.

Capsize screening
1.46

Under 2 is generally considered better for offshore use.

More details

Construction
FG

Data from Mauri Pro Sailboat Data. Check details with the builder before relying on them.