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Sailboat Specifications

Grondin

Fractional Sloop · Long Keel W/Trans. Hung Rudder

Designed by Sergent/Herbulot · First built 1948

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LOA 21.65 ft  ·  Beam 7.22 ft  ·  Displacement 1,433.00 lb  ·  Sail Area 199.00 ft²  ·  Fractional Sloop  ·  Long Keel W/Trans. Hung Rudder
About the Grondin Sailboat

Finding comprehensive information about the Grondin sailboat proves challenging, as this appears to be a lesser-documented vessel in sailing archives. With limited specifications readily available, potential buyers should approach this boat with thorough independent research and professional marine surveys. Based on the Grondin name, this sailboat likely represents either a smaller production run from a regional builder or possibly a custom design. Many boats with limited documentation fall into categories of local or boutique manufacturers who produced quality vessels but maintained smaller market presence compared to major production builders. Without detailed specifications, prospective owners should focus on hands-on evaluation of any Grondin they encounter. Key areas to investigate include the hull construction quality, rigging condition, and overall maintenance history. The boat's intended use—whether coastal cruising, racing, or offshore passage-making—would depend heavily on the specific model's size, displacement, and sail plan. Given the scarcity of readily available information, connecting with sailing forums, local yacht clubs, or marine surveyors familiar with lesser-known brands could provide valuable insights. Any serious consideration of a Grondin purchase should include comprehensive professional inspection to assess seaworthiness and determine the vessel's appropriate sailing applications.

Dimensions & Specifications
LOA (Length Overall) 21.65 ft / 6.60 m
LWL (Waterline Length) 18.50 ft / 5.64 m
Beam 7.22 ft / 2.20 m
Max Draft 2.95 ft / 0.90 m
Displacement 1,433.00 lb / 650 kg
Sail Area (Reported) 199.00 ft² / 18.49 m²
Design & Construction
Hull Type Long keel w/trans. hung rudder
Rigging Type Fractional Sloop
Construction Wood
Designer Sergent/Herbulot
First Built 1948
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Frequently Asked Questions

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

The Grondin has a Sail Area to Displacement ratio (SA/D) of 25.1. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Grondin's comfort ratio?

The Grondin has a Ted Brewer Comfort Ratio of 8.18. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Grondin safe for offshore sailing?

The Grondin has a Capsize Screening Formula value of 2.56. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Grondin?

The theoretical hull speed of the Grondin is 5.76 knots, calculated from its waterline length.

How much does a Grondin weigh?

The Grondin has a displacement of 1,433.00 lb and a length overall (LOA) of 21.65 ft.

Who designed the Grondin?

The Grondin was designed by Sergent/Herbulot, first built in 1948.