Cognac 24 Information, Review, Specs

Boat drawing
Make
Model
Number Built
150
Production Year(s)
1968 - 1985

The Aubin Cognac 24 is a distinctive monohull sailboat, measuring just over 24 feet in length overall with a waterline length of nearly 20 feet. Designed by the renowned French naval architect Philippe Harlé and built by Chantier Naval Aubin, this compact yet capable vessel was conceived as a spirited cruiser, offering a blend of performance and comfortable amenities for its size. Produced in France from 1968 to 1985, the Cognac 24 garnered a reputation for its robust construction and lively sailing characteristics, appealing to sailors seeking a manageable yet engaging experience on the water.

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History and Design

The creation of the Cognac 24 marked a significant period for Chantier Naval Aubin, a shipyard with a rich history rooted in traditional craftsmanship. Founded by Baptiste Aubin in 1926 on the Erdre River in Nantes, the shipyard initially focused on wooden and marine plywood boats before transitioning to more standardized series production by collaborating with external naval architects. The Cognac 24, designed by Philippe Harlé, emerged during this era of modernization, benefiting from Aubin's evolving manufacturing ethos that emphasized reliable and well-constructed vessels. Harlé's design for the Cognac 24, a fin-keel, masthead sloop, aimed to deliver a boat that was both responsive under sail and sturdy enough for coastal cruising. Approximately 150 units of the Cognac 24 were built during its 17-year production run.

Sailing Performance and Handling

The Aubin Cognac 24 exhibits characteristics of a lively performer for its size, thanks to its well-balanced design ratios. With a Sail Area to Displacement (SA/D) ratio of approximately 20.69, the Cognac 24 is considered to have high performance potential, suggesting it will be responsive and capable in light winds, while still carrying enough sail to be engaging in heavier conditions. Its Ballast to Displacement (B/D) ratio of nearly 44.7% indicates a stiff and stable boat, capable of standing up to a good breeze and providing a secure feel for its crew. The Displacement to Length (D/L) ratio of approximately 219.38 classifies the Cognac 24 as a moderately heavy boat for its length, implying a comfortable motion in a seaway without being sluggish. The combination of its fin keel and transom-hung rudder contributes to its maneuverability and directional stability.

Accommodations and Layout

Given its length overall of just over 24 feet, the Aubin Cognac 24 offers practical, though compact, accommodations typical for a sailboat of its class. While specific details on interior finish and materials are not extensively documented in available resources, one can generally expect a functional layout designed to maximize the limited space. Common features in vessels of this size include a V-berth forward for sleeping, a small main salon with opposing settees that may convert into additional berths, a compact galley area for basic food preparation, and a marine head, often located forward or within a dedicated compartment. Headroom would likely be limited, as is common in boats under 25 feet, prioritizing exterior lines and sailing performance. The construction, consistent with Chantier Aubin's reputation, would have focused on robust and durable materials, typically a fiberglass hull with a plywood core deck.

Measurements

Construction & Hull

Construction Material
Fiberglass (Plywood Core)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Transom-Hung
Ballast
1675 lbs
Displacement
3748 lbs
Water Capacity
-
Fuel Capacity
-

Engine

Engine Make
Engine Model
Engine Type
Engine HP
Engine Count
1
Drive Type
Fuel Type
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Main Sail Area
-
Foretriangle Sail Area
-
Total Sail Area (Reported)
312 sqft
Total Sail Area (Calc)
-

Dimensions

LOA
24.11 ft
LWL
19.68 ft
Beam
8.92 ft
Draft
3.94 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
5.94 kn
Pounds per Inch Immersion
627.24