Catalac 10 M Information, Review, Specs

Boat drawing
Make
Catalac
Model
10 M
Number Built
45
Production Year(s)
1984 - 1988

The Catalac 10 M, also known as the Catalac 34, stands as a testament to its builder's philosophy of constructing robust, practical, and seaworthy cruising catamarans. Designed by Tom Lack himself, this multihull was conceived for comfortable offshore and coastal cruising, appealing to couples and small families seeking a stable and spacious platform for extended voyages. Emerging from the pioneering British builder Catalac, a brand synonymous with durable fiberglass catamarans, the 10 M embodies a no-nonsense approach to multihull design, prioritizing strength and dependability over cutting-edge performance.

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The Catalac 10 M was produced by Tom Lack Catamarans Ltd. from 1984 to 1988, with approximately 45 units built during its production run. The vessel represents a continuation of Tom Lack's vision for fiberglass cruising catamarans, building upon the foundation laid by earlier successful models like the Catalac 9M. While the initial 9M saw design input from John Winterbotham, the 10 M is attributed directly to Tom Lack, reflecting his deep involvement in shaping the brand's vessels.

Catalac, as a builder, was renowned for its commitment to robust construction, often resulting in "overbuilt" vessels that were exceptionally strong and seaworthy. This ethos was fully integrated into the 10 M, ensuring it could withstand challenging conditions. The company pioneered the use of fiberglass for mass-produced catamarans in the UK, a material choice that provided significant durability and longevity. There is no indication of significant variations or "Mk" versions for the Catalac 10 M within its production years, suggesting a consistent design throughout its limited run.

Sailing Performance and Handling

With a sail area to displacement ratio (SA/D) of approximately 18.52, the Catalac 10 M exhibits a respectable power-to-weight balance for a cruising catamaran. This figure suggests the boat is capable of performing adequately in lighter winds, a desirable trait for comfortable cruising without demanding excessive breeze. Her displacement to length ratio (D/L) of around 279 indicates a moderately heavy displacement for her length. This aligns with Catalac's design philosophy of prioritizing solid construction and seaworthiness, contributing to a stable and comfortable motion in a seaway rather than emphasizing high-performance racing speeds.

As a catamaran, the Catalac 10 M gains its inherent stability from its wide beam of 15.25 feet, rather than relying on a high ballast-to-displacement ratio like monohulls. This design characteristic contributes significantly to a flat sailing attitude, minimizing heel and providing a comfortable platform for cruisers. Owners consistently describe Catalacs as stable and well-behaved, built for practical family cruising and extended voyages., 9] While not designed for extreme speed, the 10 M is known for its predictable handling and solid feel on the water, proving to be a dependable vessel for its intended purpose.

Accommodations and Layout

The Catalac 10 M is recognized for its generous and versatile accommodations, designed to maximize comfort and utility for extended periods aboard. While specific interior materials can vary based on owner customization and refits, the general consensus points to a high level of interior fit-out for its era.

The typical layout of the Catalac 10 M includes two large forward cabins, offering comfortable sleeping arrangements. A dedicated head compartment is also standard. The saloon area is notably spacious, a common advantage of multihull designs, providing ample room for living and dining. The galley is well-appointed, with some configurations even allowing for a "custom chef's" setup, indicating potential for a highly functional cooking space. Owners frequently highlight the boat's excellent storage capacity, often noting it provides more useful storage than many comparable vessels. While maximum headroom details are not explicitly detailed in all sources, the design is known for creating an open and livable interior volume.

Owner's Perspectives

Owners of the Catalac 10 M, and Catalacs in general, consistently praise the brand's commitment to robust construction and the resulting longevity of these vessels., 1] They are frequently sought after in the used boat market by cruisers who prioritize stability, safety, and generous interior volume over outright speed or modern aesthetics. The straightforward design and sturdy build quality mean that many original Catalac 10 Ms remain viable cruising platforms today, a testament to Tom Lack's original vision. Owners appreciate the practical and dependable nature of the boat, finding it well-suited for extended family cruising. The wide beam not only contributes to stability but also provides substantial interior living and storage space, a highly valued attribute among owners. While specific recurring problems are not widely cited beyond general maintenance expected of a boat of its age, the enduring active community of Catalac owners underscores the support and shared knowledge available for maintaining these classic catamarans.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Catamaran Sailboat
Keel Type
Multihull
Ballast
-
Displacement
12300 lbs
Water Capacity
140 gal
Fuel Capacity
30 gal

Engine

Engine Make
Yanmar
Engine Model
Engine Type
Engine HP
Engine Count
2
Drive Type
Fuel Type
Diesel
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead 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)
616 sqft
Total Sail Area (Calc)
-

Dimensions

LOA
33.67 ft
LWL
27 ft
Beam
15.25 ft
Draft
2.75 ft
Max Headroom
-
Air Draft
45.25 ft

Calculations

Hull Speed
6.96 kn
Pounds per Inch Immersion