Formula 28 Information, Review, Specs

Make
Formula
Model
28
Builder
Hunter Boats Ltd.
Designer
Stephen Jones
Number Built
26
Production Year(s)
1984 - 1987

The Hunter Formula 28 represents a significant chapter in British yachting history, marking the moment when Hunter Boats Ltd transitioned from traditional glass-reinforced plastic (GRP) construction into the high-performance realm of exotic composites. Designed by the prolific Stephen Jones and introduced in the early 1980s, the Formula 28 was conceived as a larger, more capable sibling to the successful Formula One (22ft). It was a boat designed to win "round the cans" club racing on the weekends while remaining just civilized enough for a fast cross-channel cruise. Most notably, it was one of the first production yachts in the UK to incorporate Kevlar into its standard layup, a feature highlighted by the Hunter Association as a hallmark of the "Formula" and "HB" ranges. This focus on structural rigidity and weight reduction allowed the 28 to punch well above its weight class in light to moderate winds.

Sailing Performance & Handling

The Formula 28 is defined by its Stephen Jones pedigree, which typically translates to a boat that is exceptionally well-balanced and sensitive to trim. Utilizing a fractional 7/8 rig, the boat offers sailors a high degree of control over mast bend and mainsail shape, making it a favorite for those who enjoy technical sailing. Because of its light displacement and stiff Kevlar-reinforced hull, the Formula 28 accelerates rapidly in puffs and maintains high speeds upwind.

Handling is characterized by a "dinghy-like" responsiveness. Owners frequently report that the boat provides excellent feedback through the tiller, though the deep fin keel and high aspect ratio rudder require attentive steering when pressed hard downwind to avoid broaching. Its performance is most comparable to contemporary IOR (International Offshore Rule) designs, yet it avoids some of the more "twitchy" habits of that era’s extreme hull shapes. The boat’s ability to point high and maintain speed through a tack makes it a formidable opponent in any handicap racing fleet.

Interior Comfort & Variations

Unlike many dedicated racers of the 1980s that featured "stripped-out" interiors, Hunter Boats maintained their commitment to practical cruising. The Formula 28 offers a surprisingly functional layout for a performance-first design. It typically accommodates six berths: two in the V-berth forward, two in the saloon settees, and a double quarter berth aft.

The interior utilizes a modular GRP structural grid which, while saving weight, provides a clean and easy-to-maintain aesthetic. Headroom is functional but limited compared to the high-volume "Horizon" series that Hunter would later produce. The galley is compact, usually featuring a two-burner stove and a small sink, situated to one side of the companionway to maximize the central living area. While the finish is more utilitarian than the wooden-clad interiors of traditional cruisers, the use of light-colored liners and clever stowage makes the cabin feel airy. There are no major production variations of the hull, as the Formula 28 was built to a strict specification to ensure performance consistency across the class.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the Formula 28 with a focus on its performance-oriented construction and aging racing gear.

  • Keel-Hull Joint: Given the boat’s racing history, the joint where the deep fin keel meets the hull should be inspected for "smile" cracks or signs of movement. The Kevlar reinforcement provides great stiffness, but groundings can cause stress concentrations in the surrounding GRP.
  • Kevlar/GRP Delamination: While the use of Kevlar was innovative, early applications of hybrid laminates can occasionally suffer from secondary bonding issues. Any signs of "wicking" (moisture entering the fibers) or soft spots in the hull should be professionally surveyed.
  • Rigging and Spars: The fractional rig puts significant stress on the chainplates and the mast step. Inspect the mast-base area for compression and ensure the standing rigging—often upgraded to rod or high-spec wire by racing owners—is within its safe service life.
  • Rudder Bearings: The high-aspect rudder can develop play in the bearings over time, which dulls the helm's responsiveness. Replacing these is a standard maintenance task but vital for the boat's signature handling.
  • Deck Hardware: Many Formula 28s have been "hard-sailed." Check for crazing around winches and track mountings, which may indicate that the core has been compressed or that the boat has been sailed with excessive rig tension.

Community & Resources

The primary hub for technical data, historical brochures, and owner support is the Hunter Association, which maintains a dedicated section for the British Hunter range. This organization is an invaluable resource for sourcing original specifications and connecting with owners who have performed modern upgrades on these 1980s classics.

The Verdict

The Hunter Formula 28 is a "sailor’s sailboat" that successfully bridges the gap between a technical racer and a weekend cruiser.

Pros:

  • Exceptional light-air performance and upwind pointing.
  • Advanced (for its era) Kevlar-reinforced construction ensures a stiff, durable hull.
  • Responsive, rewarding handling that appeals to experienced helmsmen.
  • Functionally designed interior that allows for genuine coastal cruising.

Cons:

  • Requires active sail trimming and attentive helming in heavy weather.
  • Utilitarian interior may lack the "warmth" of traditional wood-heavy cruisers.
  • Higher maintenance requirements for the fractional rig and racing-grade hardware.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
1823 lbs
Displacement
4200 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
28 ft
Waterline Length (LWL)
22.33 ft
Beam
8.2 ft
Draft
5.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
33 ft
E (Main Foot)
12.5 ft
I (Foretriangle Height)
31 ft
J (Foretriangle Base)
9.3 ft
Forestay Length (est)
32.36 ft
Sail Area
350 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
21.51
Ballast / Displacement Ratio
43.4
Displacement / Length Ratio (D/L) Ratio
168.4
Comfort Ratio
16.38
Capsize Screening Formula
2.03
Hull Speed
6.33 kn