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Sailboat Specifications

Petrel

Fractional Sloop · Long Keel W/Trans. Hung Rudder

Designed by Nathanael Herreshoff · Built by Golden Era Boats · First built 1977

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LOA 20.75 ft  ·  Beam 7.12 ft  ·  Displacement 2,850.00 lb  ·  Sail Area 265.00 ft²  ·  Fractional Sloop  ·  Long Keel W/Trans. Hung Rudder
About the Petrel Sailboat

A classic and characterful small sailboat, the Petrel has earned a quiet reputation among sailors who appreciate simplicity and responsive handling on the water. Designed with accessibility in mind, it appeals to those looking to develop their sailing skills or enjoy relaxed daysailing and coastal cruising without the complexity of a larger vessel. With its manageable size and straightforward rigging, the Petrel is well suited to sheltered bays, inland lakes, and protected coastal waters. It rewards attentive helmsmanship and offers an honest, connected feel that more modern, performance-oriented designs can sometimes lack. Sailors often praise its forgiving nature, making it a solid choice for novice and intermediate sailors alike, while still offering enough character to keep experienced hands engaged. For those researching a first boat or a low-maintenance weekend sailor, the Petrel represents a practical and often affordable entry point into the hobby. Its enduring presence in sailing communities speaks to a design that balances function with charm, and finding one in good condition can make for a genuinely rewarding ownership experience.

Dimensions & Specifications
LOA (Length Overall) 20.75 ft / 6.32 m
LWL (Waterline Length) 16.00 ft / 4.88 m
Beam 7.12 ft / 2.17 m
Max Draft 3.92 ft / 1.19 m
Displacement 2,850.00 lb / 1,293 kg
Ballast 1,400.00 lb / 635 kg
Sail Area (Reported) 265.00 ft² / 24.62 m²
Design & Construction
Hull Type Long keel w/trans. hung rudder
Rigging Type Fractional Sloop
Construction FG
Designer Nathanael Herreshoff
Builder Golden Era Boats
First Built 1977
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Frequently Asked Questions

What is the Petrel's sail area to displacement ratio?

The Petrel has a Sail Area to Displacement ratio (SA/D) of 21.15. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Petrel's comfort ratio?

The Petrel has a Ted Brewer Comfort Ratio of 18.49. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Petrel safe for offshore sailing?

The Petrel has a Capsize Screening Formula value of 2.01. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Petrel?

The theoretical hull speed of the Petrel is 5.36 knots, calculated from its waterline length.

How much does a Petrel weigh?

The Petrel has a displacement of 2,850.00 lb and a length overall (LOA) of 20.75 ft.

Who designed the Petrel?

The Petrel was designed by Nathanael Herreshoff, first built in 1977.