Voyager 20 Sailboat Review, Specs, and Listings

Herb Stewart/International Marine·2013·International Marine
Voyager 20 — profile diagramApproximate side-elevation profile generated from published dimensions. Not a builder drawing.{"source":"listingsport.com","subject":"voyager-20","renderer":"2026-09-20.1","mark":"lp-coord-v1"}
Approximate drawing

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Hull Type
Monohull · centerboard
Rig
Fractional Sloop
LOA
20.5' · 6.25 m
Disp.
2,150 lbs · 975 kg
First year
2013

The Voyager 20 is a 20foot5inch centerboard sloop and a more sophisticated cousin of the Potter 19. International Marine built the boat in California and sold it directly to customers before the company closed. Herb Stewart and International Marine’s thenowner, Ken Lange, based the design on a borrowed foilkeel idea and added a retractable centerboard. The result is a small cruiser whose modest 1,750pound displacement and 17.5foot waterline disguise a thoughtful approach to trailerable pocket cruising.

Measurements

Dimensions 01

Length Overall
20.5 ft
Length on deck
—
Waterline Length
17.5 ft
Beam
7.5 ft
Draft
5 ft
Maximum Headroom
—
Air Draft
—

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Centerboard
Rudder
1× —
Ballast
605 lbs
Displacement
2,150 lbs
Water Capacity
—
Fuel Capacity
—

Rig & sails 03

Rigging Type
Fractional Sloop
Mainsail luff
—
Mainsail foot
—
Foretriangle height
—
Foretriangle base
—
Forestay Length (estimated)
—
Sail Area
175 sqft

Calculations 04

Sail Area to Displacement Ratio
16.81
Ballast to Displacement Ratio
28.14
Displacement to Length Ratio
179.09
Comfort Ratio
12.33
Capsize Screening Ratio
2.32
Hull Speed
5.61 kn

Design and Construction

The Voyager 20’s defining feature is its keel. Stewart and Lange borrowed the Montgomery 17’s foil-keel design, then added a centerboard to improve windward performance. This encapsulated lead keel was the single biggest improvement over the Potter 19.

The hull is a solid-fiberglass monohull with a centerboard keel. Its conservative ballast-displacement ratio and hard chine kept the boat upright during testing—a result of its structure and geometry rather than a marketing claim. High freeboard and coamings kept the cockpit dry, while heavy-duty Lewmar hatches and portlights were fitted above the waterline.

Rig, Handling, and Performance

Writing in Practical Sailor, testers found the Voyager 20 surprisingly stable and well balanced with four adults and a dog aboard in an 8-to-11-knot breeze on Sarasota Bay. That load would unsettle many boats of this size.

The Voyager managed fine to windward with the board raised, but testers saw more lift with the centerboard down. It also tacked through 90 degrees true on a GPS-recorded track that accounted for leeway. These results show a forgiving and reasonably efficient centerboard sloop. The main handling drawback was its relatively flat bottom, which tended to pound through chop when beating to windward.

Accommodations

Below, the Voyager 20 retains the Potter 19’s nearly identical layout. It includes a compact sink, a portable head, a V-shaped forward berth, and a fair amount of storage for a boat of this length.

The cabin is functional rather than expansive and clearly descends from a proven pocket-cruiser plan. Before International Marine closed, its direct-to-customer sales model gave buyers this layout without dealer markup.

Known Issues

The only handling shortfall recorded under sail was the boat’s tendency to pound through chop when beating to windward. This was a direct consequence of the relatively flat bottom, not a structural defect.

No other operational or structural problems were observed during the period test. The heavy-duty hatches and portlights suggest that the deck hardware was specified to tolerate regular use.

Verdict

The Voyager 20 is a small, intelligent cruiser that combines a known good pocket-boat layout with a genuinely improved keel-and-centerboard arrangement. It is stable, dry, and tractable under sail, with practical accommodations and honest construction. Its only real sailing vice is its tendency to pound through chop to windward—a motion shared by flat-bottomed centerboarders.

Pros

  • Encapsulated lead keel with an added centerboard for better windward performance
  • Stable and well balanced under load in a moderate breeze
  • Dry cockpit, thanks to high freeboard and coamings
  • Practical layout with a fair amount of storage

Cons

  • Pounds through chop when working to windward
  • Compact cabin with only the basics

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