Hunter 20 Sailboat Review, Specs, and Listings

Cortland Steck·1983 – 1984·Hunter Marine
Hunter 20 drawingBuilder drawing
Hull Type
Monohull · wing
Rig
Fractional Sloop
LOA
19.67' · 6 m
Disp.
1,700 lbs · 771 kg
First year
1983

The Hunter 20, built by Hunter Marine between 1983 and 1984, represents an interesting chapter in the history of American pocket cruisers. Designed by the prolific naval architect Cortland Steck, this trailerable sailboat was conceived as an accessible entryway into family cruising and daysailing. At a time when the market was saturated with heavy, traditional pocket cruisers or spartan racing dinghies, Hunter Marine sought to blend the two, offering a boat that could be easily towed behind a standard passenger vehicle but still provide basic overnighting accommodations.

Measurements

Dimensions 01

Length Overall
19.67 ft
Length on deck
Waterline Length
15.5 ft
Beam
7.5 ft
Draft
4 ft
Maximum Headroom
Air Draft
29.5 ft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Wing
Rudder
1× —
Ballast
400 lbs
Displacement
1,700 lbs
Water Capacity
Fuel Capacity

Rig & sails 03

Rigging Type
Fractional Sloop
Mainsail luff
23.5 ft
Mainsail foot
8.33 ft
Foretriangle height
21 ft
Foretriangle base
6.75 ft
Forestay Length (estimated)
22.06 ft
Sail Area
169 sqft

Calculations 04

Sail Area to Displacement Ratio
18.98
Ballast to Displacement Ratio
23.53
Displacement to Length Ratio
203.8
Comfort Ratio
10.71
Capsize Screening Ratio
2.51
Hull Speed
5.28 kn

During its brief production run, the model carved out a niche on inland lakes and protected coastal estuaries 3. Its design aimed to maximize usable cockpit space and initial stability, appealing directly to novice sailors and budget-conscious weekenders. Steck designed a boat that prioritized volume and ease of handling over offshore capability, presenting a stark contrast to more rugged, heavy-keeled contemporary competitors of the era.

Design Brief & Intent 5 4

The fundamental mission of the Hunter 20 was to deliver maximum cabin volume and cockpit space within a platform light enough to be hauled on a single-axle trailer. Structurally, the boat features a hand-laid, single-skin fiberglass hull paired with a deck section stiffened with encapsulated plywood blocks. An aluminum rub rail covers the hull-to-deck joint, which was secured with fasteners in standard production fashion. Steck prioritized initial stability by carrying a generous beam of seven and a half feet well aft, creating a wedge-shaped hull that resists heeling in light to moderate breezes.

The boat's underwater profile is characterized by its retractable draft. While primarily configured as a swing-keel design with a cast-iron board, official documentation and database listings often categorize it under a wing keel type. This dual classification arises because the retracted cast-iron board does not fully recess into the hull; instead, a portion of the weighted assembly remains exposed beneath the boat's flat underbody, mimicking a shallow-draft wing stub. This clever configuration keeps the interior cabin floor completely flat and uninterrupted by a large, protruding centerboard trunk, which was a common layout headache in competing trailer-sailers. With the board fully retracted, the boat draws only one foot and three inches, allowing for easy ramp launching, beaching, and shallow-water exploring. Fully deployed, the board drops to four feet, providing the lateral plane required to track upwind.

Rigging & Sailing Performance 4 6

Steck outfitted the Hunter 20 with a fractional sloop rig featuring a tall, light-alloy spar supported by single spreaders and lower shrouds. Rigged as a seven-eighths fractional sloop, the sail plan is optimized for light-to-medium air agility. The boat's sail area-to-displacement ratio of 18.98 indicates a lively, responsive performer in light lake breezes. Helming the boat in five to ten knots of wind is an engaging experience; the boat accelerates quickly and responds eagerly to subtle rudder inputs.

However, because the boat’s displacement is a modest 1,700 pounds and its ballast-to-displacement ratio sits at 23.53%, much of its stability is form-based rather than ballast-driven. This physical reality is reflected in its high capsize screening ratio of 2.51. In practice, this means the boat is tender when the breeze rises above twelve knots. It lacks the deep-keeled righting energy of a dedicated offshore cruiser, making it essential for the crew to reef early and monitor the helm closely. The motion in a seaway is quick and active, as highlighted by a comfort ratio of 10.71, indicating that waves and chop will toss the lightweight hull about rather than being absorbed. The displacement-to-length ratio of 203.8 positions the Hunter 20 as a moderate-displacement vessel for its waterline length, ensuring it behaves predictably when kept within its design limits on sheltered waters.

Interior & Accommodations

For a twenty-foot boat, the interior layout is remarkably clever and makes excellent use of the hull's beam. The head of the companionway is covered by a pop-up hatch that significantly increases headroom and ventilation when anchored. Below deck, the cabin is arranged to sleep up to five individuals, though in reality, it is best suited for two adults or a small family.

The forward V-berth is designed for two, though taller sailors may find the footwell near the bow somewhat cramped. Moving aft, a straight settee runs along the port side, while the starboard side features a dinette arrangement with facing seats and a small table. This table can be lowered to convert the dinette into a double berth. To keep the living spaces uncluttered, Steck designed a sliding galley module that nests under the cockpit sole when not in use and rolls forward when needed. Ventilation and light are provided by opening portlights and a forward deck hatch. A portable marine head can be tucked neatly under the V-berth, offering crucial privacy that is rarely found in boats of this size.

Known Issues & Triage

Decades after leaving the factory, several specific aging issues have become common triage items for Hunter 20 owners. The most critical area of concern is the swing-keel winch and cable mechanism. The cast-iron board is raised and lowered via a stainless steel cable connected to a manual winch mounted at the base of the aluminum mast compression post inside the cabin. Over time, the stainless steel cable is prone to fraying, and the internal pulleys can bind. If the cable snaps, the heavy cast-iron board can drop violently, risking catastrophic structural damage to the fiberglass trunk. Regular inspection of the cable, pivot pin, and winch drum is a mandatory safety routine.

The mast compression post and the surrounding deck structure also demand close inspection. The downward compression force of the tall fractional rig is transferred through the deck to the cabin compression post. Because the deck core utilizes plywood stiffeners rather than solid laminate in high-load areas, water intrusion through unsealed mast step fasteners or chainplates can rot the wood core 2. This results in deck compression, visible as spider-web cracks in the gelcoat around the mast step and a slight sagging of the deck cabin house.

Furthermore, directional stability can suffer in heavy air. Author Steve Henkel and veteran owners have noted that the original transom-mounted kick-up rudder is undersized for the boat’s beam and sail area. When the boat heels excessively, the rudder can lose steering authority, leading to severe weather helm or rounding up. The transom gelcoat around the rudder pintle brackets also tends to develop stress cracks and may require structural backing plates to handle the torsional loads of the rudder.

Modernization & Upgrades

Modern owners have successfully updated the Hunter 20 to improve both safety and convenience. In the rigging department, replacing the old, hum-prone stainless steel keel cable with modern high-strength synthetic line, such as Dyneema or Amsteel, has become a popular modification. Synthetic line eliminates the risk of galvanic corrosion, reduces underwater drag and cable vibration, and is much easier to handle on the winch drum.

To address steering deficiencies, some owners have retrofitted deeper, high-aspect rudder blades. These modern foil profiles provide significantly more grip in the water, reducing weather helm and keeping the boat under control when gusty conditions cause sudden heeling.

Electrical upgrades are also common, as the original 12-volt factory wiring is primitive. Owners routinely replace the old incandescent lights with marine LEDs and install compact lithium-iron-phosphate (LiFePO4) battery banks. Paired with a small, deck-mounted solar panel and a modern charge controller, this setup provides ample silent power to run a tablet-based chartplotter, VHF radio, and depth sounder without the need for a noisy gasoline generator. For propulsion, the original heavy two-stroke outboards are increasingly replaced by ultra-lightweight four-stroke outboards in the four-to-six horsepower range, or by clean, quiet electric outboards that slide easily onto the transom bracket.

The Verdict 4

The Hunter 20 is a clever, budget-friendly pocket cruiser that punches well above its weight class in terms of interior volume and light-air sailing enjoyment. It is an ideal weekend camper or daysailer for those operating in protected lakes, bays, and sounds, offering painless trailering and shallow-draft versatility. While it lacks the structural robust hull build or stability required for blue-water passages or heavy-weather sailing, a well-maintained or retrofitted model remains an incredibly cost-effective gateway to the cruising lifestyle.

Pros

Cons

  • Highly tender in strong winds, requiring early reefing and careful sail management.
  • High capsize screening ratio and low comfort ratio make it unsuitable for rough or open-ocean conditions.
  • The factory transom-mounted rudder is undersized and prone to losing grip when heeled.
  • Forward V-berth is tight and uncomfortable for two taller adults to share.
  • Keel winch and cable assembly require vigilant inspection and maintenance to prevent failure.

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