Design Brief & Intent
The Evelyn 25 was designed for competitive club racers who demanded sports-car-like handling on a trailerable platform. Unlike many mass-produced performance boats of the era, such as the ubiquitous J/24, the Evelyn 25 avoided compromising its hull lines for interior volume. Bob Evelyn prioritized aerodynamic and hydrodynamic efficiency, opting for a narrow beam, a low-profile cabin house, and a light-displacement hull. This focus on performance meant that the interior was purposely Spartan. Although the boat features sleeping accommodations for four—comprising a double V-berth in the forward cabin and two straight settees in the salon—headroom is highly restricted. There is no standing headroom, and cruising amenities are limited to a basic fold-down navigation station and simple wood trim. The joinery and finish quality are functional rather than luxurious, designed to withstand the rigors of racing while minimizing overall weight. The hull construction utilized a high-grade fiberglass skin over a Divinycell foam core, a premium material choice for the era that provided excellent strength-to-weight characteristics and superior rot resistance compared to traditional balsa coring.
Sailing Performance & Handling
On the water, the Evelyn 25 is an exceptionally lively and responsive boat that demands active, skilled trimming. Weighing in at just 2,600 pounds, the hull feels incredibly light at the helm. This is confirmed by a Displacement-to-Length ratio of 116.79, which places the vessel firmly in the light-displacement category. It requires very little breeze to break away from its theoretical hull speed, accelerating rapidly in light air and showing a willingness to plane downwind. This light-air prowess is further enhanced by an aggressive Sail Area-to-Displacement ratio of 24.96, giving the masthead sloop rig immense horsepower relative to the boat's mass.
Despite its light weight and powerful sail plan, the Evelyn 25 exhibits remarkable stiffness upwind, thanks to a Ballast-to-Displacement ratio of 42.31%. With 1,100 pounds of lead ballast concentrated in its 4.40-foot fixed fin keel, the boat stands up remarkably well to its rig, maintaining a flat sailing attitude and tracking with clean precision. However, this high-performance design does come with trade-offs. The Comfort Ratio of 10.06 indicates a highly active, motion-sensitive ride in choppy seas, meaning the crew will feel every wave. Additionally, the Capsize Screening Formula of 2.52 underscores that this narrow, light-displacement hull is optimized for coastal and inshore racing rather than offshore passages, and it requires a vigilant crew to manage when the breeze begins to howl.
Variations & Configurations
Given that Formula Yachts only built six hulls of the Evelyn 25, there are virtually no factory variations in layout or hull configuration. Unlike its slightly larger sibling, the Evelyn 26, which was built in both lifting-keel flush-deck and fixed-keel cabintrunk configurations, the Evelyn 25 was produced exclusively with a fixed deep fin keel drawing 4.40 feet and an internally mounted spade rudder controlled by a tiller. The rig was standardized as a tall masthead sloop. Auxiliary power was designed around a lightweight outboard motor, typically ranging from 3 to 6 horsepower, mounted on a transom bracket. This kept heavy machinery, fuel tanks, and through-hull drag out of the boat's light hull, preserving its racing pedigree.
Market Snapshot & Economics
The Evelyn 25 occupies a unique niche on the brokerage market, characterized by extreme scarcity and a dedicated cult following. Because of the tiny production run, finding an Evelyn 25 for sale is a rare occurrence, and they rarely stay on the market long when they do appear. They command a premium among PHRF enthusiasts who recognize the boat's favorable handicap, which typically sits around 147 to 150, allowing it to easily outpace larger, heavier designs on corrected time. However, buyers must approach the purchase with a clear understanding of refit economics. While the initial acquisition cost of a used hull is relatively modest, the expense of upgrading sails, running rigging, and deck hardware can quickly exceed the value of the boat. A competitive inventory of high-tech racing sails and a modern cordage upgrade can run into several thousands of dollars, making it a labor of love rather than a purely financial investment.
Known Issues & Triage
Prospective buyers must perform a rigorous structural assessment before purchasing. While the Divinycell foam core used in the hull is structurally robust and inherently resistant to the rot associated with balsa core, the thin fiberglass skins are vulnerable to localized impact damage and stress cracking from decades of hard racing. The deck, also cored, must be carefully inspected for soft spots. Any aftermarket deck hardware, stanchion bases, or chainplate penetrations that were poorly bedded over the years can allow water to migrate into the core, necessitating localized recoring and epoxy injection.
The second major area of concern is the keel-to-hull joint, commonly referred to as the "smile". The high ballast ratio means that the 1,100-pound lead keel exerts immense leverage on the lightweight hull sump. Hard groundings or the fatigue of heavy racing can cause structural floor grids to crack, leading to movement at the joint. Buyers should thoroughly inspect the internal keel floors and backing plates for stress fractures, and verify the torque of the keel bolts. Lastly, the high-tension masthead rig puts considerable load on the internal bulkhead under the cockpit and the chainplate attachments; any bulkheads showing signs of water damage or delamination must be reinforced or replaced immediately to prevent structural rig failure.
Modernization & Upgrades
Modern owners of the Evelyn 25 have found several highly effective paths to keep these vintage racers competitive and enjoyable. Upgrading the deck layout is a top priority, with many owners retrofitting modern, high-efficiency self-tailing winches and installing cross-sheeting systems for the genoa. Replacing original wire-to-rope halyards with modern Dyneema running rigging significantly reduces stretch and saves crucial weight aloft. Structurally, some owners have added molded traveler beams to modernize mainsheet control.
On the electrical front, the transition to lightweight lithium iron phosphate (LiFePO4) batteries has allowed racers to drastically reduce house bank weight while maintaining sufficient power for instruments and running lights. For propulsion, the original small gasoline outboard is increasingly being replaced by modern, high-torque electric outboards. An electric outboard eliminates the need for onboard gasoline storage, reduces maintenance, and is light enough to be easily stowed below when racing, further optimizing the boat's weight distribution.
The Verdict
The Evelyn 25 remains a testament to Bob Evelyn’s mastery of light-displacement engineering, delivering a pure, unfiltered sailing experience that few modern pocket-cruisers can replicate. It is not a boat for the casual weekend cruiser who demands hot water and standing headroom, but for the purist racer who delights in squeezing every tenth of a knot out of a well-balanced hull, it is a masterclass in performance design.
Pros
- Exceptional light-air performance and fast acceleration.
- High ballast ratio provides impressive upwind stiffness.
- High-quality Divinycell core offers superior rot resistance compared to balsa 3.
- Highly competitive PHRF rating with a reputation as a giant-killer.
- Trailerable design allows for easy transport and off-season storage.
- Extreme scarcity on the brokerage market due to only six hulls being built.
- Lack of standing headroom and Spartan interior limit cruising utility.
- Extremely low motion comfort makes for a wet, fatigue-inducing ride in a seaway.
- Requires an active, experienced crew to manage in heavy air.
- Light hull construction demands careful, structural inspection of the keel joint and deck core.
