Kettenburg 41 Information, Review, Specs

Boat drawing
Make
Kettenburg
Model
41
Number Built
30
Production Year(s)
1966 - 1969

The Kettenburg 41 is a distinctive masthead sloop that represents a significant chapter in the history of Kettenburg Boats, a builder renowned for its iconic wooden yachts. Produced between 1966 and 1969 by Kettenburg Marine in San Diego, California, the K41 marked the company's strategic foray into fiberglass construction. Designed by Paul Kettenburg, this 41-foot vessel, with 30 units built, offered a blend of the builder's traditional design philosophy and the emerging benefits of fiberglass, aiming to provide sailors with a capable and speedy cruiser.

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History and Design

The creation of the Kettenburg 41 unfolded during a period of transition for Kettenburg Boats. While the company had built its reputation on exquisite wooden yachts like the PC and PCC classes, the mid-1960s saw the marine industry increasingly embrace fiberglass technology. The K41, which began production in 1966 and continued until 1969, was among Kettenburg's early fiberglass models. Paul Kettenburg, continuing the family's design legacy, is credited as the naval architect for the K41. The design intent aimed for a "significantly more speedy hull design" compared to some contemporaries, indicating a focus on performance within the cruising yacht segment. The hulls for these fiberglass models, including the K41, were molded by external contractors, while Kettenburg leveraged its expertise in finishing and construction. The first K41, initially named "Tomboy V" and later "ELIXIR," was notably owned by Paul Kettenburg himself, underscoring his personal connection to the design. Charles Underwood, Vice President at Kettenburg, also played a role in overseeing the design and construction of the fiberglass K41, highlighting a collaborative effort during this pivotal shift in materials.

Sailing Performance and Handling

The Kettenburg 41 was designed with a keen eye on sailing characteristics, reflecting Paul Kettenburg's ambition for a speedy hull. With a total calculated sail area of approximately 626 square feet and a displacement of 15,000 pounds, its sail area to displacement ratio (SA/D) of around 16.43 suggests a boat with moderate performance in lighter winds, capable of moving well without being overly tender. The ballast to displacement ratio (B/D) of 0.33, derived from 5,000 pounds of lead ballast, indicates a moderately stiff and stable vessel, providing a comfortable motion in a seaway without sacrificing too much righting moment. The displacement to length ratio (D/L) of approximately 322 positions the K41 as a heavier, more traditional cruiser, emphasizing seaworthiness and a solid feel over extreme light-displacement performance. Anecdotal evidence from the era suggests Kettenburg designs, including the 41, were considered "gorgeous marine designs" with "excellent total" characteristics, implying a well-balanced and pleasing sailing experience.

Accommodations and Layout

While specific interior details for the Kettenburg 41 are not extensively documented in broad public reviews, the design ethos of Kettenburg Boats generally favored family-friendly usability and comfortable accommodations. As a 41-foot masthead sloop, the K41 would typically feature a traditional interior layout for cruising yachts of its era. This would likely include a V-berth forward, a main salon with settees that convert to berths, a galley, and a head compartment. The builder's reputation for quality craftsmanship, even during the transition to fiberglass, suggests a well-finished interior, likely incorporating wood trim to maintain a classic aesthetic. The boat is equipped with a fresh water capacity of 35 gallons, indicating provision for extended cruising.

Measurements

Construction & Hull

Construction Material
Fiberglass/Wood Composite
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
5000 lbs (Lead)
Displacement
15000 lbs
Water Capacity
35 gal
Fuel Capacity
45 gal

Engine

Engine Make
Universal-Atomic
Engine Model
Atomic 4
Engine Type
Engine HP
30
Engine Count
1
Drive Type
Fuel Type
Gasoline
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
38.25 ft
E (Main Foot)
15.75 ft
I (Foretriangle Height)
44 ft
J (Foretriangle Base)
14.75 ft
Forestay Length (est)
46.41 ft
Main Sail Area
301.22 sqft
Foretriangle Sail Area
324.5 sqft
Total Sail Area (Reported)
626 sqft
Total Sail Area (Calc)
625.72 sqft

Dimensions

LOA
41 ft
LWL
27.5 ft
Beam
10.33 ft
Draft
5.5 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
7.03 kn
Pounds per Inch Immersion
1