The Santa Cruz 40 represents a pivotal moment in the evolution of the Ultra Light Displacement Boat (ULDB) movement. Designed by the legendary Bill Lee in the mid-1980s, this model was conceived as a slightly more accessible sibling to the record-shattering Santa Cruz 50 and 70 "sleds." While those larger vessels were designed primarily for trans-oceanic passage-making and surfing down the swells of the Pacific, the Santa Cruz 40 was engineered to provide that same exhilarating "Fast is Fun" experience in a package that could be campaigned more easily by a smaller crew or used for high-speed coastal cruising. It remains a quintessential example of California’s radical boatbuilding era, emphasizing minimal wetted surface and a high power-to-weight ratio over the heavy, displacement-oriented designs prevalent on the East Coast at the time.
Santa Cruz 40 Information, Review, Specs

- Make
- Santa Cruz
- Model
- 40
- Builder
- Santa Cruz Yachts
- Designer
- Bill Lee
- Number Built
- 15
- Production Year(s)
- 1982 - ??
Sailing Performance & Handling
The Santa Cruz 40 is defined by its ability to plane—a rarity for a 40-foot monohull of its vintage. With a displacement-to-length (D/L) ratio typically hovering in the low double digits, the boat is exceptionally responsive in light air. However, it truly comes alive when the breeze exceeds 15 knots off the wind. According to editorial retrospectives in Latitude 38, the Santa Cruz line’s performance is built on a narrow waterline and a deep, high-aspect fin keel that allows the boat to track efficiently upwind, though it is admittedly "tender" compared to heavier cruisers.
Handling the SC40 requires an active hand at the helm and a crew comfortable with frequent sail adjustments. Because the hull is so light, it lacks the inertia of a traditional cruiser; it accelerates instantly in gusts but can also be slowed quickly by poorly timed maneuvers or heavy chop. The boat utilizes a fractional rig that offers significant control over mast bend, allowing sailors to flatten the mainsail as the breeze builds. In downwind conditions, the SC40 is known for its "surfing" capabilities, often hitting speeds in the mid-teens or higher when properly trimmed on a swell.
Interior Comfort & Variations
Unlike its larger siblings, which were often stripped-out racing machines, the Santa Cruz 40 was offered with an interior that acknowledged the needs of the "performance cruiser." The layout is functional and lightweight, utilizing marine-grade plywood and laminates rather than heavy solid hardwoods to keep the displacement low. The standard configuration features a V-berth forward, followed by a head and hanging locker. The main salon typically includes two settee berths with a center-line table, which is often removable for racing.
A notable characteristic of the SC40’s interior is the placement of the galley and navigation station near the companionway for easy access during offshore legs. Aft of the companionway, most models feature two large quarter berths, which are the most comfortable places to sleep while the boat is underway. While the headroom is adequate for most, the narrow beam—designed for speed—means the cabin feels more intimate than contemporary "fat-sterned" cruisers from European manufacturers. Variations of the SC40 were occasionally customized for original owners, with some opting for more minimalist "racing-only" interiors that omitted the table and forward cabinetry to shed every possible pound of weight.
Known Issues & Buyer’s Checklist
Prospective buyers of a Santa Cruz 40 should approach the hull and deck with a rigorous inspection protocol, as these boats were built to be light rather than "overbuilt."
- Deck Core Delamination: Like many performance boats of this era, the SC40 utilizes a balsa-cored deck. Over decades, moisture can penetrate through poorly sealed hardware (stanchions, tracks, and cleats), leading to core rot. A thorough percussion test or moisture meter reading is essential.
- Rudder Bearings and Post: The high loads generated during high-speed surfing can put immense strain on the rudder assembly. Owners frequently report the need to replace original bushings or inspect the rudder post for stress fractures.
- Chainplate Reinforcement: The rig tension required to keep the fractional forestay tight is significant. It is critical to inspect the chainplates and the bulkheads to which they are attached for signs of movement or water ingress.
- Keel Bolt and Grid Inspection: Given the boat’s history as a racer, many SC40s have experienced "groundings" at some point. Buyers should inspect the keel sump and the internal fiberglass grid for structural cracks or signs of repair.
Community & Resources
The Santa Cruz 40 benefits from a dedicated following, largely concentrated on the West Coast of the United States. Technical information and historical data are often preserved by the Santa Cruz Yachts Owners Group, which serves as a repository for sail plans and tuning guides. While the original builder is no longer in operation, the "Fast is Fun" community remains active in events like the Transpac and the Pacific Cup, where Santa Cruz designs continue to compete.
The Verdict
The Santa Cruz 40 is not a boat for those seeking a sedentary "condo-on-the-water" experience. It is a thoroughbred athlete designed for sailors who prioritize the sensation of speed and the technicality of sail trim. While it requires more maintenance and a more vigilant eye than a standard production cruiser, it rewards its owner with performance that many modern designs still struggle to match.
Pros
- Exceptional Speed: One of the few vintage 40-footers capable of consistent planing.
- Light-Air Prowess: Moves effortlessly when other boats are forced to motor.
- Aesthetic Appeal: The sleek, low-profile lines are a timeless hallmark of Bill Lee’s "Wizard" era.
Cons
- Demanding Handling: Can be "twitchy" and tender in heavy weather if not properly reefed.
- Lightweight Build: Requires frequent inspection of the balsa core and structural junctions.
- Sparse Amenities: The interior is functional but lacks the luxury features found in modern cruisers.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (PVC Foam Core)
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Spade
- Ballast
- 5500 lbs (Lead)
- Displacement
- 10500 lbs
- Water Capacity
- 90 gal
- Fuel Capacity
- 40 gal
Dimensions
- Length Overall (LOA)
- 40 ft
- Waterline Length (LWL)
- 36 ft
- Beam
- 12 ft
- Draft
- 7 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 45.5 ft
- E (Main Foot)
- 14 ft
- I (Foretriangle Height)
- 52 ft
- J (Foretriangle Base)
- 16 ft
- Forestay Length (est)
- 54.41 ft
- Sail Area
- 734 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 24.49
- Ballast / Displacement Ratio
- 52.38
- Displacement / Length Ratio (D/L) Ratio
- 100.47
- Comfort Ratio
- 15.94
- Capsize Screening Formula
- 2.19
- Hull Speed
- 8.04 kn