Home/ Boats/ Hodgsdon Bros. (Usa)/ Dolphin 47 Alden
Sailboat Specifications

Dolphin 47 Alden

Staysail Ketch · Long Keel

Designed by John G. Alden Assoc. · Built by Hodgsdon Bros. (Usa) · First built 1973

+ Add to Compare
LOA 46.92 ft  ·  Beam 13.25 ft  ·  Displacement 32,700.00 lb  ·  Sail Area 888  ·  Staysail Ketch  ·  Long Keel
About the Dolphin 47 Alden Sailboat

Built by the renowned Alden Design Group, this 47-foot sailboat represents the yard's commitment to creating seaworthy cruising vessels with classic lines and robust construction. The Dolphin 47 emerged during an era when Alden was establishing itself as a builder of quality fiberglass yachts that honored traditional sailing principles while incorporating modern materials and techniques. This blue-water cruiser exhibits the balanced proportions and moderate displacement characteristics typical of Alden's design philosophy. The boat features a comfortable cockpit layout and well-appointed interior spaces that make extended passages practical for couples or small crews. Her hull form strikes an effective compromise between performance and stability, making her suitable for both coastal exploration and offshore passages. The Dolphin 47's construction quality reflects Alden's reputation for building boats that age gracefully and maintain their value over time. Her design incorporates practical features that serious cruisers appreciate, including adequate storage, robust rigging, and systems that can handle the demands of extended voyaging. For sailors seeking a capable cruising platform with proven offshore credentials, this model represents Alden's dedication to creating vessels that inspire confidence in challenging conditions.

Dimensions & Specifications
LOA (Length Overall) 46.92 ft / 14.30 m
LWL (Waterline Length) 34.50 ft / 10.52 m
Beam 13.25 ft / 4.04 m
Max Draft 5.00 ft / 1.52 m
Displacement 32,700.00 lb / 14,832 kg
Ballast 12,000.00 lb / 5,443 kg
Sail Area (Reported) 888
Design & Construction
Hull Type Long Keel
Rigging Type Staysail Ketch
Construction FG
Designer John G. Alden Assoc.
Builder Hodgsdon Bros. (USA)
First Built 1973
Last Built 1978
Number Built 13
Owner Reviews

No owner reviews yet — be the first to share your experience with this boat.

Engine & Accommodations
Fuel Capacity 200 gals / 757 L
Water Capacity 200 gals / 757 L
Frequently Asked Questions

What is the Dolphin 47 Alden's sail area to displacement ratio?

The Dolphin 47 Alden has a Sail Area to Displacement ratio (SA/D) of 13.95. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Dolphin 47 Alden's comfort ratio?

The Dolphin 47 Alden has a Ted Brewer Comfort Ratio of 42.34. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Dolphin 47 Alden safe for offshore sailing?

The Dolphin 47 Alden has a Capsize Screening Formula value of 1.66. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Dolphin 47 Alden?

The theoretical hull speed of the Dolphin 47 Alden is 7.87 knots, calculated from its waterline length.

How much does a Dolphin 47 Alden weigh?

The Dolphin 47 Alden has a displacement of 32,700.00 lb and a length overall (LOA) of 46.92 ft.

Who designed the Dolphin 47 Alden?

The Dolphin 47 Alden was designed by John G. Alden Assoc., first built in 1973.