HB 31 Information, Review, Specs

Boat drawing
Make
Model
Number Built
25
Production Year(s)
1983 - 1985

The Hunter HB 31 is a versatile 30-foot monohull sailboat that skillfully blends racing prowess with comfortable cruising amenities. Designed by the renowned Dutch firm Van de Stadt and built by Hunter Boats Ltd. in the UK, the HB 31 emerged as a prominent International Offshore Rule (IOR) Half-Tonner during its production run from 1983 to 1985. Only 25 of these spirited yachts were built, establishing its reputation as a performance-oriented cruiser-racer well-suited for both competitive sailing and enjoyable weekends afloat.

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History and Design

The creation of the Hunter HB 31 marked an interesting chapter for Hunter Boats, a builder known for its practical and well-built vessels, which included a diverse range from agile racers to comfortable family cruisers. Designed by Van de Stadt, a firm whose design philosophy prioritizes achieving the highest possible levels of speed, safety, and comfort in every design, the HB 31 was conceived as a dual-purpose "cruiser racer" with "GT cruising capability." It was envisioned as a "production 'Half Ton One Design'" to offer superb long-term competition. Notably, the HB 31 was among the first production boats by Hunter to incorporate Kevlar in its standard laminates, showcasing the builder's commitment to advanced materials and performance during this era., 11] An alternative version of the HB 31 was also known as the Formula 31.

Sailing Performance and Handling

The Hunter HB 31's design ratios underscore its performance orientation and stable nature. With a Sail Area to Displacement ratio of approximately 19.12, the HB 31 possesses ample sail power, suggesting good performance, particularly in lighter air. Its Ballast to Displacement ratio of about 0.48 indicates a stiff and stable boat, capable of standing up to more wind and maintaining its sail plan effectively. Furthermore, a Displacement to Length ratio of approximately 186.8 places it in the lighter end of the displacement spectrum for its size, consistent with a performance-oriented cruiser or racer.

Anecdotal evidence from owners and reviews often praises the HB 31's impressive sailing capabilities. It is described as a "sporty, solidly built cruiser," offering a balance of speed and stability that makes it enjoyable to sail in various conditions. As a Half-Tonner, the HB 31 was designed to be competitive on the race course while also offering comfortable handling for cruising.

Accommodations and Layout

Despite its performance credentials, the Hunter HB 31 is noted for its surprisingly spacious and comfortable interior for a yacht of its length. Owners frequently praise the generous cabin space, finding it remarkably expansive for a 30-foot vessel. The layout typically features seven berths, a functional galley, and a dedicated head compartment, providing ample accommodation for extended cruises or overnight stays. The interior is often described as "cozy comfortable," contributing to its appeal as a pocket cruiser. While specific details on the quality of finish or materials are not extensively documented in broad reviews, Hunter Boats generally had a reputation for building practical and well-regarded vessels.

Owner's Perspectives

Owners of the Hunter HB 31 often highlight its impressive cabin volume as a significant strength, appreciating how much living space is packed into its just over 30-foot hull. Many find it a "great pocket cruiser" that is enjoyable for regular sailing. However, like many boats of its vintage, some common issues have been noted by owners. Recurring concerns often revolve around leaks, particularly those associated with deck fittings that may require re-bedding over time. Additionally, some owners have reported problems with compression posts, which may also contribute to leak issues. Despite these potential maintenance items, the HB 31 generally holds up well, especially if consistently maintained.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
2645 lbs
Displacement
5500 lbs
Water Capacity
-
Fuel Capacity
-

Engine

Engine Make
Yanmar
Engine Model
Engine Type
Engine HP
15
Engine Count
1
Drive Type
Fuel Type
Diesel
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
37.1 ft
E (Main Foot)
14.1 ft
I (Foretriangle Height)
33.3 ft
J (Foretriangle Base)
6.5 ft
Forestay Length (est)
33.93 ft
Main Sail Area
261.56 sqft
Foretriangle Sail Area
108.23 sqft
Total Sail Area (Reported)
370 sqft
Total Sail Area (Calc)
369.78 sqft

Dimensions

LOA
30.5 ft
LWL
23.6 ft
Beam
10.5 ft
Draft
5.6 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
6.51 kn
Pounds per Inch Immersion
885.42