She reflects the modern Frers idiom: a V-form hull, moderate 10-foot-3-inch beam, fin keel, and internally mounted spade rudder with wheel steering. She measures just over 31 feet overall, with a 24-foot-3-inch waterline, an 8,000-pound displacement, and 3,550 pounds of lead ballast, giving a ballast-displacement ratio of 44 percent.
Design and Construction
Frers gave the Niagara 31 a raked stem, raised transom, and fin keel with external lead ballast. A semibalanced spade rudder completes what one reviewer described as a thoroughly contemporary underwater profile.
The boat is built predominantly of fiberglass, with balsa cores in both the hull and deck. Hinterhoeller followed its typical construction method for the design: a frequently balsa-cored fiberglass hull with external lead ballast bolted to a reinforced sump. Teak trim appears inside and out, while the interior is predominantly teak with varnished pine trim.
The first 50 hulls had a 13-horsepower Volvo diesel saildrive. Later boats switched to a 22-horsepower Westerbeke v-drive. Because the two propulsion layouts aren’t interchangeable, this is an important ownership-era detail to establish during a survey.
Rig, Performance, and Handling
The Niagara 31 carries a masthead sloop rig, also listed in period specifications as a Bermuda rig. Its tall rig has a foretriangle that isn’t excessively large, reducing foresail-handling demands compared with many similar sloops. The genoa sheets run on tracks to two coaming-mounted winches. A coach-house roof winch handles the halyards, while additional winches serve the reefing system. The remaining controls include a mid-cockpit 4:1 mainsheet, Cunningham, outhaul, and boom vang.
With 492 square feet of sail and a sail-area-displacement ratio of 19.68, Practical Sailor found that the Niagara 31 excels in performance and does nicely in light airs thanks to its big sloop rig. Owners report that she sails exceptionally well on every point: stable, well-balanced, and quick. The owner of a 1993 model claimed she would outpoint most racer-cruisers.
Her average PHRF rating is 156, and her Portsmouth Yardstick is 84.0. Under the lower-number-is-faster convention, the PHRF figure puts her ahead of the Aloha 32 at 171.
That performance comes with a trade-off. Michael McGoldrick noted that the Niagara 31 is a little more tender than most cruising boats of her size. Most owners say the large rig calls for a reef at about 15 knots, and nearly all agree that she needs reefing earlier than heavier cruisers.
Accommodations
Below, the Niagara 31 has a focused cruiser-racer interior rather than one designed primarily for maximum volume. The galley is to starboard at the foot of the companionway and includes a two-burner propane stove. Opposite, on the port side, the icebox occupies the aft part of the navigation station. Both the navigation seat and table stow away when not in use.
The head is forward, immediately aft of the bow V-berth. Folding doors separate it from both the main and forward cabins, and it includes a shower over a teak grating.
Sleeping accommodation consists of the bow berth and two main-cabin settee berths, with the port settee forming a double. Ventilation comes through two translucent hatches, one over the bow and one over the main cabin. Of the six ports, four are fixed and two open.
One owner described the Niagara 31 as a technical cruiser-racer that isn’t suited to a beginner, an assessment consistent with its performance-oriented layout and rig.
Verdict
The Niagara 31 is a small, limited-production Frers design that offers racer-cruiser pace without giving up cruising accommodation. Light-air performance and balance are real strengths, but the tender hull and early reefing threshold call for an engaged helm. With only 100 boats built and two different engine configurations used during the production run, identifying the hull number and drivetrain matters more than usual.
Pros
- Large masthead sloop rig with 492 square feet of sail provides strong light-air performance
- Well-balanced and quick, and reported by owners to outpoint many racer-cruisers
- Focused cruising interior with a stowable navigation station and a forward head with shower
Cons
- More tender than most cruisers of her size, with reefing needed at around 15 knots
- Only 100 built; early hulls have a Volvo saildrive, while later boats use a Westerbeke v-drive
- Described by one owner as a technical boat that isn’t for beginners
