The Sol Cat 15 represents a distinct chapter in the Southern California multihull explosion of the 1970s. Launched in 1975 as a more refined, performance-oriented alternative to the ubiquitous Hobie 14 and 16, the Sol Cat 15 was designed by Gene Vernon to bridge the gap between recreational beach cats and technical racers. While many catamarans of this era utilized asymmetrical hulls to eliminate the need for daggerboards, the Sol Cat 15 opted for symmetrical hulls and high-aspect daggerboards. This design choice prioritized upwind efficiency and "pointing" ability over the simplified "beach-and-go" utility of its competitors. Built in Santa Ana by Sol Catamarans, the boat featured a robust fiberglass construction and a rotating mast, catering to a demographic of sailors who demanded more tuning potential from a 15-foot platform.
Sol Cat 15 Information, Review, Specs

- Make
- Sol
- Model
- Cat 15
- Builder
- Sol Catamarans Inc.
- Designer
- Gene Vernon
- Number Built
- Production Year(s)
- 1975 - ??
Sailing Performance & Handling
The Sol Cat 15 is defined by its responsiveness and its ability to outperform most contemporaries in light-to-moderate air, particularly when sailing close-hauled. Because it utilizes symmetrical hulls, the boat does not rely on hull shape alone for lateral resistance; instead, the deep daggerboards allow the Sol Cat 15 to track straight with minimal leeway. This makes the boat feel more like a high-performance dinghy on two hulls rather than a traditional "banana-shaped" beach cat.
With a length of 15 feet 8 inches and a relatively generous beam, the boat offers a stable platform, yet its lightweight construction (approximately 225–250 lbs) ensures it accelerates quickly in puffs. Handling is described by owners as "surgical" compared to the heavier, skeg-mounted catamarans of the same era. The boat carries a main and a jib, providing enough sail area to fly the windward hull in roughly 10-12 knots of breeze. However, sailors must be wary of the hull’s low-volume bows. Like many 1970s designs, the Sol Cat 15 is susceptible to "pitch-poling" (tripping over its own bows) if pressed too hard on a broad reach in heavy seas.
The Sol Cat 15’s larger sibling, the Sol Cat 18, was frequently compared to the Hobie 18 in period reviews for its superior upwind performance. The 15-foot version shares this DNA, utilizing the same daggerboard-centric philosophy to provide a technical sailing experience. While the boat is exhilarating, it requires active weight management; the sailor and crew must move aft quickly as the wind increases to keep the narrow entries from submerging.
Popular Mentions & Media
The Sol Cat 15 occupied a specific niche in the 1970s beach racing circuit, often featured in the "One-Design" reports of the era. While it never achieved the mass-market cinematic fame of the Hobie Cat, it was a staple in regional Southern California regattas. The boat’s performance was documented in various archival technical reviews, and it remains a frequent subject of discussion on technical multihull platforms like TheBeachCats, where the community preserves original tuning guides and sail plans.
Known Issues & Buyer’s Checklist
Purchasing a Sol Cat 15 today requires a rigorous inspection of the fiberglass and structural components, as most extant models are nearly half a century old.
- Hull Delamination: The most common "gotcha" for Sol Cats is soft spots on the decks, particularly in front of or behind the pylon supports. This indicates that the fiberglass has separated from the core material, usually due to decades of trampoline stress and sun exposure.
- Mast Step & Pylons: The tension of the rig is transferred through the pylons. Inspect the areas where the aluminum pylons meet the fiberglass hulls for spider cracking or structural compression.
- Daggerboard Trunks: Because the Sol Cat 15 relies on daggerboards, the trunks are a high-stress area. Check for vertical cracks inside the trunks or leaks where the trunk integrates with the hull bottom, often caused by hitting the bottom with the boards down.
- Rudder Casting Wear: The original rudder kick-up mechanisms were prone to oxidation and wear. Ensure the rudders lock down firmly; if there is "slop" or play in the rudders, the boat will be difficult to steer at high speeds.
- Mast Rotation: Verify the rotating mast base is clear of debris and moves freely. A seized mast rotation pivot will significantly hamper sail shape and can put undue stress on the mast step.
Community & Resources
While the manufacturer ceased operations in 1984, a dedicated community of owners continues to support the brand. Technical data, including original sail dimensions and parts diagrams, are primarily hosted by the multihull enthusiast site TheBeachCats, which serves as the unofficial repository for Gene Vernon's designs. Owners often look to these archives for cross-referencing parts, as many modern Hobie or Prindle components can be retrofitted to keep these vintage Sol Cats on the water.
The Verdict
The Sol Cat 15 is a "sailor’s catamaran" that offers more technical depth than the entry-level beach cats of the 1970s. It is an ideal choice for those who appreciate classic lines and the tactile feedback of a daggerboard boat.
Pros:
- Superior upwind performance and tracking compared to non-daggerboard cats.
- Lightweight and easy to trailer or beach-launch.
- Responsive, high-performance feel in light air.
- Simple, robust rigging that is easy for a solo sailor to manage.
Cons:
- Low hull volume makes it prone to pitch-poling in heavy air and following seas.
- Symmetrical hulls and daggerboards make beaching more cumbersome than skeg-hulled boats.
- Manufacturer support is non-existent, requiring owners to source or fabricate custom parts.
- Older hulls are frequently plagued by delamination if not stored properly.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Catamaran Sailboat
- Keel Type
- Centerboard
- Ballast
- -
- Displacement
- 275 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 15.67 ft
- Waterline Length (LWL)
- 15 ft
- Beam
- 7.92 ft
- Draft
- 1.5 ft
- Max Headroom
- -
- Air Draft
- 26 ft
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 190 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 71.88
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 36.38
- Comfort Ratio
- 1.78
- Capsize Screening Formula
- 4.87
- Hull Speed
- 5.19 kn