Cal 31 Information, Review, Specs

History and Design

The Cal 31's production run spanned from 1979 to 1984, representing the thirteenth Cal model designed by Bill Lapworth within the 27-foot to 34-foot range. Lapworth's design philosophy for the Cal line consistently focused on evolving hull principles that delivered performance-oriented fiberglass sailboats known for their robust construction and ease of handling. During this period, Cal Boats, under Jensen Marine, maintained its ethos of building solid, well-built, and tough vessels that were remarkably easy to sail and comfortable, often praised for their excellent tracking and dry ride.

A notable shift occurred around 1982 when Cal Boat production, including that of the Cal 31, relocated from Costa Mesa, California, to Tampa, Florida. This transition also saw a change in componentry, with the company switching from Beckson plastic ports to other options. Despite these shifts, the fundamental design and construction quality that defined Cal boats persisted, contributing to the Cal 31's enduring appeal.

Sailing Performance and Handling

The Cal 31 is well-regarded for its balanced sailing characteristics and responsive handling. With a sail area to displacement ratio of approximately 17.72, she demonstrates good potential for performance in lighter air, indicating that she can be responsive even when the wind is not robust. Her ballast to displacement ratio of around 0.39 suggests a reasonably stiff and stable boat, capable of standing up to a fair amount of wind without excessive heeling. Furthermore, her displacement to length ratio of approximately 242 places her in the moderate displacement category, striking a balance between light, nimble performance and the heavier, more comfortable motion of a traditional cruiser.

Equipped with a fin keel and a spade rudder, the Cal 31 offers good maneuverability and responsiveness. Reviewers and owners consistently note that she handles well under sail, exhibiting good balance and the ability to track steadily on the wind with proper sail trim. Her reputation as a "fast" and "weatherly" vessel underscores her capability for enjoyable and efficient sailing across various conditions.

Accommodations and Layout

While specific headroom figures are not consistently available, the Cal 31 is often lauded for an interior volume that feels notably larger than her length suggests, offering the space typically found in 35-footers of her era. The interior layout is designed for efficient living, providing ample space for coastal cruising. Search results indicate an emphasis on an "efficient, live-aboard layout" and surprisingly generous counter space, features often associated with the larger Cal 39, hinting at a shared design philosophy across the Cal range for maximizing interior utility.

Common interior arrangements for vessels of this size and era typically include a V-berth forward, a main salon with settees that convert to berths, a galley, and a navigation station, along with an enclosed head compartment. Given Cal's reputation, one would expect a practical finish with a blend of fiberglass and wood trim, offering durability and a classic sailing aesthetic. One specific design note mentions the companionway as a weaker point, being "too wide".

Owner's Perspectives

Owners of the Cal 31 consistently praise her as a "wonderful coastal cruiser," highlighting her blend of speed, strength, and liveability. The boat is frequently commended for its solid construction and overall reliability, testament to Cal Boats' manufacturing quality. The Cal 31 is often described as a well-behaved vessel with good balance, making her a pleasure to sail. While specific recurring "red flag issues" are not widely detailed in common owner forums, the general consensus points to a robust and capable design that continues to provide enjoyable sailing experiences for its owners. The longevity of the Cal 31 fleet and the active community of Cal owners further underscore the enduring satisfaction with these classic Lapworth designs.