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Columbia 34 Mk Ii Cb
Designer: William Tripp Sr.  ·  Builder: Columbia Yachts (Usa)  ·  First built: 1970
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About the Columbia 34 Mk Ii Cb

Built during Columbia Yachts' productive era, this centerboard variant of the popular Columbia 34 represents a thoughtful adaptation for sailors seeking versatility in shallow waters. The centerboard configuration opens up cruising opportunities in areas where traditional deep-keel boats fear to venture, making it particularly appealing for gunkholing and exploring protected bays and rivers. Columbia designed this model with coastal cruising in mind, emphasizing comfort and ease of handling over racing performance. The centerboard system allows for reduced draft when exploring shallow anchorages, while still providing adequate lateral resistance for respectable sailing performance in deeper waters. This dual capability made the boat attractive to cruising couples and families who valued flexibility in their sailing destinations. The Mk II designation suggests refinements over earlier iterations, likely incorporating lessons learned from owner feedback and evolving design preferences of the era. Columbia boats from this period were known for their solid fiberglass construction and practical layouts that maximized interior space while maintaining structural integrity. For sailors considering coastal cruising with occasional forays into protected shallow waters, this centerboard variant offers a compelling blend of accessibility and traditional sailing characteristics that defined Columbia's reputation during their manufacturing years.

Core Dimensions
LOA (Length Overall) 33.58 ft / 10.24 m
LWL (Waterline Length) 28.00 ft / 8.53 m
Beam 10.00 ft / 3.05 m
Max Draft 7.92 ft / 2.41 m
Displacement 13,000.00 lb / 5,897 kg
Ballast 5,700.00 lb / 2,585 kg
Ballast Type Lead
Design & Construction
Hull Type Keel/CB & spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer William Tripp Sr.
Builder Columbia Yachts (USA)
First Built 1970
Last Built 1975
Owner Reviews

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Performance Ratios
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
43.85
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
264.38
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 6.0 pounds/inch
Rig Dimensions
I (Foretriangle Height) 3.75 ft / 1.14 m
J (Foretriangle Base) 13.80 ft / 4.21 m
P (Mainsail Luff) 526.00 ft² / 48.87 m²
E (Mainsail Foot) Universal
Engine & Accommodations
Fuel Capacity 30 gals / 114 L
Water Capacity 40 gals / 151 L
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