Columbia 31 Information, Review, Specs

Boat drawing
Make
Columbia
Model
31
Number Built
97
Production Year(s)
1965 - 1968

The Columbia 31, a sailboat designed by the esteemed Charles Morgan and built by Columbia Yachts, emerged in the mid-1960s as a robust and capable cruiser, emblematic of the era's transition to fiberglass construction. With a production run from 1965 to 1968, seeing 97 hulls launched, she quickly established herself as a practical choice for sailors seeking a blend of comfortable accommodations and reliable performance. Columbia Yachts, a pioneering force in the American fiberglass sailboat industry, aimed to deliver yachts with classic designs and comfortable interiors, embodying what were considered "luxurious bluewater yachts" of their time.

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The Columbia 31's lineage traces back to designer Charles Morgan's successful 'Tiger Cub' racing design, upon which the 31 was derived. Morgan, a well-known figure in yacht design and building, was instrumental in shaping many successful models for Columbia Yachts. During the Columbia 31's production years, Columbia Yachts was at the forefront of fiberglass boat building, known for its commitment to the material's durability and reduced maintenance, which revolutionized the marine industry. The company focused on mass production of well-designed, robust sailing yachts, making boating more accessible to a broader audience. While the majority of Columbia 31s featured a standard masthead sloop rig, some models were offered with a "TALL MAST" option, indicating potential variations in sail plan for those desiring enhanced performance.

Sailing Performance and Handling

The Columbia 31 is characterized by a heavy displacement-to-length ratio of approximately 381.8, typical of older designs prioritizing stability and comfort over outright speed. This heavy displacement contributes to a comfortable motion in a seaway, making her well-suited for cruising. Her sail area to displacement ratio of about 17.58 suggests a moderate performer, capable of handling a range of wind conditions competently. With a ballast-to-displacement ratio of 40%, the Columbia 31 exhibits a good degree of stiffness and stability, allowing her to stand up to a breeze effectively. The boat features a keel/centerboard hull type, providing a versatile minimum draft of 3.08 feet for navigating shallower waters and a maximum draft of 7.0 feet for enhanced upwind performance when the board is deployed. Owners generally describe the Columbia 31 as a boat that "sailed pretty well."

Accommodations and Layout

The interior of the Columbia 31 is generally described as having a "simple but workable interior layout" and being "spacious." While specific headroom figures are not consistently documented across all variations, some advertisements alluded to modifications that provided "four inches extra head room," suggesting the original design might have been more conservative in this regard. Typical for boats of her era, the Columbia 31 would likely feature a traditional layout including a V-berth forward, a head compartment, a salon with settees and a table, and a galley area, aiming to maximize interior volume for cruising comfort. Though details on finish quality and materials are scarce in available data, Columbia Yachts was known for producing comfortable interiors with a focus on delivering "luxurious bluewater yachts" for their time, often incorporating traditional wood trim and robust fiberglass components.

Owner's Perspectives

While a significant number of Columbia 31s were built, and an "active Columbia Yachts owners group" exists, detailed and consolidated owner feedback, including common strengths and weaknesses, is not readily available in public forums or reviews. Owners generally appreciate the boat's solid construction and its suitability as a comfortable cruiser. However, specific recurring issues or maintenance challenges are not widely documented.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Centerboard
Rudder
1x —
Ballast
3400 lbs
Displacement
8500 lbs
Water Capacity
-
Fuel Capacity
-

Engine

Engine Make
Universal-Atomic
Engine Model
Atomic 4
Engine Type
Engine HP
20
Engine Count
1
Drive Type
Fuel Type
Gasoline
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
30.5 ft
E (Main Foot)
14.5 ft
I (Foretriangle Height)
35.5 ft
J (Foretriangle Base)
11.33 ft
Forestay Length (est)
37.26 ft
Main Sail Area
221.13 sqft
Foretriangle Sail Area
201.11 sqft
Total Sail Area (Reported)
422 sqft
Total Sail Area (Calc)
422.23 sqft

Dimensions

LOA
30.5 ft
LWL
21.5 ft
Beam
9.83 ft
Draft
7 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
6.21 kn
Pounds per Inch Immersion
755.16