Geary 18 Information, Review, Specs

Boat drawing
Make
Model
Number Built
1500
Production Year(s)
1928 - ??

The Geary 18, originally known as the 18' Development Class Flattie or simply the Flattie, is an iconic American one-design sailboat renowned for its simplicity, speed, and approachable handling. Conceived in 1928 by the prolific naval architect Ted Geary, the design was commissioned by the Seattle Yacht Club with the primary goal of creating an accessible and fast platform for youth racing. Over 1,500 units of this 18-foot vessel have been built, with initial production by the N.J. Blanchard Boat Company and later by other builders, including the Clark Boat Company, which adapted the design to modern fiberglass construction.

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The genesis of the Geary 18 dates back to 1928 when the Seattle Yacht Club initiated a competition to design a straightforward yet performance-oriented sailboat suitable for its junior sailing program. The winning design came from Ted Geary, a celebrated naval architect known for his elegant and effective boat designs. Geary's philosophy for the Flattie centered on "ease of sailing," aiming for a boat that was not only fast but also simple to manage, making it an ideal trainer and racer for developing sailors.

Initially constructed from wood by the N.J. Blanchard Boat Company, the Geary 18's enduring appeal led to its adoption by subsequent builders. The Clark Boat Company, founded by Bob Clark in 1960, became known for its innovative use of fiberglass in sailboat production, focusing on well-built, easily sailable, and value-driven vessels. Clark Boat Company built various one-design classes in fiberglass, and the Geary 18 was among the designs they produced, transitioning the traditional wooden Flattie into a fiberglass and wood composite hull, thereby extending its production and accessibility. This adaptation allowed the class to thrive for many decades, maintaining its status as a popular one-design racer.

Sailing Performance and Handling

With an overall length of 18.16 feet, the Geary 18 is a nimble and responsive monohull designed for exhilarating performance. The boat features a fractional sloop rig and a centerboard keel, allowing for adjustable draft from a minimum of 1.92 feet to a maximum of 3.75 feet, which is advantageous for both shallow water access and upwind performance. The design principles emphasized a "fast, simple, flat-bottomed" hull, contributing to its lively performance characteristics.

Sailors often describe the Geary 18 as being remarkably easy to sail, with some likening the experience to "sailing while sitting on a couch" due to its balanced nature and forgiving handling. Its heritage as a one-design racer means it offers competitive sailing in its class, characterized by sharp acceleration and a responsive helm. For racing, the class rules permit the use of one trapeze, enhancing crew leverage, but prohibit the use of a spinnaker, simplifying downwind tactics and focusing on main and jib trim. This combination of ease of handling and competitive performance has solidified its reputation as an excellent platform for both youth and adult sailors seeking an engaging day sailer and racer.

Accommodations and Layout

The Geary 18 was fundamentally conceived as a one-design racing dinghy and day sailer, meaning its design priorities were focused squarely on sailing performance and a functional cockpit rather than extensive interior accommodations. As such, the boat does not feature a traditional cabin or significant headroom. The layout typically consists of a large, open cockpit designed to accommodate a racing crew comfortably, with space for essential gear and controls. Any enclosed areas would likely be limited to small lockers or a minimal cuddy forward, primarily for storage rather than overnighting. This design choice underscores its purpose as a spirited performer for day sailing and competitive racing.

Measurements

Construction & Hull

Construction Material
Fiberglass/Wood Composite
Hull Type
Monohull Sailboat
Keel Type
Centerboard
Rudder
1x —
Ballast
-
Displacement
525 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
Fractional 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)
200 sqft
Total Sail Area (Calc)
-

Dimensions

LOA
18.16 ft
LWL
-
Beam
5.46 ft
Draft
3.75 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
— kn
Pounds per Inch Immersion