Columbia 34 Mk II SD Information, Review, Specs

Boat drawing
Make
Columbia
Model
34 Mk II SD
Number Built
Production Year(s)
1970 - ??

The Columbia 34 Mk II SD is a robust and comfortable masthead sloop designed for coastal cruising and weekend adventures. With a length overall of just under 34 feet, she strikes a balance between manageable size and interior volume, making her a popular choice for families and couples seeking a stable platform for exploring nearshore waters. Known for its solid fiberglass construction and comfortable accommodations, this model embodies the design philosophy of its era, offering a blend of performance and liveability.

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Built by the prolific American manufacturer Columbia Yachts, the 34 Mk II SD is a testament to the company's significant impact on the fiberglass sailboat industry. Columbia Yachts, founded by Richard "Dick" Valdes as Glas Laminates, played a pioneering role in the widespread adoption of fiberglass, establishing a reputation for durable and well-designed production yachts.

History and Design

The Columbia 34 Mk II SD, with "SD" denoting "shoal draft," began production in 1970. It was designed by the esteemed American maritime architect William Tripp Sr. (also sometimes referred to as William H. Tripp Jr. in some sources). The Mk II represented a significant evolution from the earlier Columbia 34, featuring a distinct "bubble top" deck design that increased interior volume and headroom, a characteristic shared with other Columbia models of the period, such as the Columbia 26, 39, and 50.

Columbia Yachts, particularly during this period, was known for its commitment to fiberglass construction, a material that revolutionized boat building by offering durability and reduced maintenance. Their manufacturing ethos focused on delivering classic designs with comfortable interiors, positioning their vessels as luxurious bluewater yachts for their time. The company frequently collaborated with renowned naval architects, ensuring their yachts maintained a reputation for good performance and seaworthiness. The shoal draft version of the Mk II was introduced to offer greater accessibility to shallow anchorages and cruising grounds, a common adaptation in American yacht design.

Sailing Performance and Handling

Interpreting its design ratios, the Columbia 34 Mk II SD presents as a capable and stable cruiser. With a Sail Area to Displacement ratio of approximately 15.15, she is moderately powered, suggesting decent performance in light to moderate winds but might require more sail area in very light conditions to maintain speed. Her Ballast to Displacement ratio of about 43.8% indicates a relatively stiff and stable boat, capable of standing up to a good breeze and providing a comfortable motion in a seaway. This high ballast ratio contributes to her ability to carry sail effectively without excessive heeling.

The Displacement to Length ratio of approximately 264.4 places the Columbia 34 Mk II SD firmly in the realm of a moderate to heavier displacement cruiser. This suggests a boat that prioritizes comfort and load-carrying capacity over out-and-out speed, offering a more stable and forgiving ride in various sea states, typical of traditional cruising yachts. Anecdotal evidence from owners often praises the Columbia 34 Mk II's solid construction and its ability to handle rough conditions with composure, providing a secure feeling at sea.

Accommodations and Layout

While specific headroom figures are not consistently available, the "bubble top" design of the Columbia 34 Mk II was a deliberate choice to enhance interior volume, aiming to provide a more spacious and comfortable living environment. The interior layout of the Columbia 34 Mk II SD is typically arranged to maximize living space for coastal cruising, often featuring a traditional V-berth forward, a main salon with opposing settees (one of which may convert to a double berth), and a galley to port or starboard. A navigation station and an enclosed head compartment would also be standard features.

The finish quality generally includes ample use of wood trim, characteristic of yachts from this era, contributing to a warm and inviting atmosphere. Storage is typically generous, with lockers and shelves throughout the cabin to accommodate provisions and gear for extended trips. Ventilation would rely on deck hatches and portlights, common for boats of this vintage. The interior is designed to be functional and comfortable for a family of four or more for weekend trips, or for two people for longer coastal cruising.

Owner's Perspectives

Owners of the Columbia 34 Mk II SD often praise its robust construction and seaworthy characteristics. Many appreciate the generous interior space, especially considering its length, which makes it suitable for comfortable cruising or even as a liveaboard for one or two individuals. The shoal draft version is particularly valued for its ability to access shallower waters, expanding cruising grounds.

However, like any boat of its age, some common maintenance points and weaknesses have been noted by owners. Recurring discussions in owner forums often highlight the need to inspect and potentially re-bed original deck fittings to prevent leaks. Some owners have also noted issues with the original keel bolts, suggesting that these components may require attention in older models if not previously addressed by a prior owner. Despite these common age-related considerations, the Columbia 34 Mk II SD continues to be regarded as a reliable and capable cruising sailboat by its dedicated owner community.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
5700 lbs
Displacement
13000 lbs
Water Capacity
-
Fuel Capacity
-

Engine

Engine Make
Universal-Atomic
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)
36.3 ft
E (Main Foot)
13 ft
I (Foretriangle Height)
42 ft
J (Foretriangle Base)
13.8 ft
Forestay Length (est)
44.21 ft
Main Sail Area
235.95 sqft
Foretriangle Sail Area
289.8 sqft
Total Sail Area (Reported)
526 sqft
Total Sail Area (Calc)
525.75 sqft

Dimensions

LOA
33.58 ft
LWL
28 ft
Beam
10 ft
Draft
3.75 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
7.09 kn
Pounds per Inch Immersion
1