The Cal 25, a cornerstone of the fiberglass revolution, represents one of C. William Lapworth’s most enduring contributions to pocket cruising and club racing. While originally born in California under Jensen Marine, the model found a prolific second home in North Vancouver under the licensed production of Calgan Marine Ltd. This Canadian lineage ensured the Cal 25 became a staple of the Pacific Northwest, valued for its ability to handle the region's varied conditions while remaining accessible to the burgeoning middle-class sailing community of the 1960s and 70s. The design reflects a transitional era in naval architecture, moving away from heavy, full-keeled traditionalism toward the light-displacement, fin-keel-and-spade-rudder configuration that would eventually define modern performance yachts.
Cal 25 Information, Review, Specs

- Make
- Cal
- Model
- 25
- Builder
- Jensen Marine
- Designer
- C. William Lapworth
- Number Built
- 1848
- Production Year(s)
- 1965 - 1976
Sailing Performance & Handling
The Cal 25 is widely recognized for its "light-air" prowess, a characteristic derived from its relatively low wetted surface area and Lapworth’s signature hull form. With a displacement-to-length ratio that leaned toward the performance side of its era, the boat is known to accelerate quickly in puffs that leave heavier contemporaries becalmed. According to editorial insights from SpinSheet Magazine, the vessel remains a competitive choice for PHRF (Performance Handicap Racing Fleet) racing decades after its launch, owing much of its longevity to its balanced helm and predictable tracking.
Under sail, the boat exhibits a stiff posture despite its modest 25-foot length, thanks to a high ballast-to-displacement ratio (typically around 40%). The use of a spade rudder provides exceptional maneuverability in tight quarters, though owners frequently note that the boat requires active trimming as the wind increases to prevent excessive weather helm. Unlike the heavier cruisers of its time, the Cal 25 "feels" more like a large dinghy, offering immediate feedback to the tiller, which has made it a preferred training platform for many yacht clubs.
Interior Comfort & Variations
For a vessel of its size, the Cal 25 offers a functional, if utilitarian, interior designed for coastal hops rather than extended blue-water living. The layout typically features a V-berth forward, a small chemical or marine head located just aft of the bulkhead, and two long settee berths in the main cabin. One of the defining features of later iterations—specifically those often categorized as the Cal 2-25 or Mark II—was the introduction of a "pop-top" hatch, which significantly increased standing headroom while at anchor.
Calgan Marine’s production often mirrored the Jensen Marine standards but occasionally varied in interior finishings, utilizing teak and mahogany marine plywood that reflected the aesthetics of the era. Storage is concentrated under the settees and in the "hanging locker" area opposite the head. While the original Mark I design lacked a full galley, many owners have customized these spaces with fold-down stoves and iceboxes. The sibling model, the Cal 27, built on a similar philosophy, offers significantly more interior volume, making it a common "step-up" for Cal 25 owners seeking more cruising amenities.
Popular Mentions & Media
The Cal 25 maintains one of the most robust "one-design" racing legacies in North America. The model is the focus of the Cal 25 National Association, which governs strict class rules to ensure that older boats can still compete fairly against well-maintained newer hulls. This dedicated following has cemented the boat’s place in maritime media as the "everyman’s racer," frequently appearing in regional sailing publications as a case study in affordable performance.
Known Issues & Buyer’s Checklist
Prospective buyers of a Calgan-built or Jensen-built Cal 25 should focus on the structural integrity of the "California bumper" and the hull-to-deck joint. The following areas are critical:
- The "Compression Post" and Beam: A common failure point involves the structural beam supporting the mast step. Over time, moisture can rot the internal wood core, leading to a visible "sag" in the deck or difficulty in maintaining rig tension.
- Bulkhead Rot: Because the chainplates are through-bolted to the plywood bulkheads, any leak in the deck seals can lead to rot in the wood, compromising the boat's structural ability to carry sail.
- Rudder Delamination: The spade rudder is a foam-filled fiberglass unit. Many older rudders have absorbed water over the years, leading to internal corrosion of the stainless steel frame or "wicking" into the rudder post.
- Keel Bolts: While the Cal 25 uses an encapsulated or securely bolted lead keel, the older mild-steel bolts found in some versions may show signs of "weeping" or rust, requiring careful inspection and potential replacement.
Community & Resources
The primary hub for technical data and fleet coordination is the Cal 25 National Association. This organization provides exhaustive documentation on class measurements and restoration projects. Additionally, the Pacific Northwest community often finds specific regional support through the various Cal-centric groups on Vancouver Island and the Lower Mainland, where Calgan Marine’s specific builds are most prevalent.
The Verdict
The Cal 25 remains a premier entry point for sailors who value performance over mahogany-clad luxury. Its pedigree as a C. William Lapworth design ensures that even fifty years later, it can outpace many modern cruisers in a light breeze.
Pros:
- Excellent light-air performance and nimble handling.
- Strong one-design class support for racing enthusiasts.
- Simple, easy-to-maintain systems ideal for first-time owners.
- Robust construction that has stood the test of time in coastal environments.
Cons:
- Standing headroom is limited without the "pop-top" modification.
- Original builds often require significant "deck-dryness" remediation.
- The interior is basic and may feel cramped for more than two adults on a multi-day cruise.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Spade
- Ballast
- 1700 lbs (Lead)
- Displacement
- 4000 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 25 ft
- Waterline Length (LWL)
- 20 ft
- Beam
- 8 ft
- Draft
- 4 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 25 ft
- E (Main Foot)
- 11 ft
- I (Foretriangle Height)
- 29.8 ft
- J (Foretriangle Base)
- 10 ft
- Forestay Length (est)
- 31.43 ft
- Sail Area
- 286 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 18.16
- Ballast / Displacement Ratio
- 42.5
- Displacement / Length Ratio (D/L) Ratio
- 223.21
- Comfort Ratio
- 18.01
- Capsize Screening Formula
- 2.02
- Hull Speed
- 5.99 kn