Helsen 20 Information, Review, Specs

Make
Helsen
Model
20
Builder
Helsen Yachts
Designer
J. "Jopie" Helsen
Number Built
Production Year(s)
1974 - ??

The Helsen 20 is a 1970s-era trailerable sailboat designed by Johannes "Jopie" Helsen as a compact, more manageable alternative to the manufacturer’s flagship Helsen 22. Introduced in 1974 by the Helsen Yacht Corporation based in Saint Petersburg, Florida, the boat was engineered specifically for the shallow-water coastal regions of the Gulf of Mexico. It features a fiberglass monohull and a masthead sloop rig, positioning it as a competitor to the popular Catalina 22 and Chrysler 22 models of the same period. According to Wikipedia’s entry on the Helsen 20, the design prioritized accessibility and ease of transport, making it a staple for lake and coastal weekenders during the "sailing boom" of the mid-70s.

Sailing Performance & Handling

The Helsen 20 is characterized by its swing keel, which draws just over 1 foot when retracted and nearly 5 feet when fully deployed. This configuration allows for easy beaching and ramp-launching while providing significant leverage for upwind performance when extended. With a displacement-to-length ratio of approximately 171, the boat is classified as a light cruiser, making it responsive in light winds but prone to heeling quickly if the 400 lbs of lead ballast is not managed with early reefing.

Technical analysis from historical performance data suggests a sail area-to-displacement ratio of 18.29, which indicates the boat is adequately powered for its size. Anecdotal evidence from local Florida racing archives and owner technical discussions suggests that while the boat is "stiff" due to its relatively wide 7' 4" beam, it possesses a low righting capability if knocked down with the keel up. Sailors often describe the handling as forgiving and predictable, though the transom-mounted rudder requires a firm hand in following seas to prevent rounding up.

Interior Comfort & Variations

For a 20-foot vessel, the Helsen 20 offers a surprising amount of interior utility, utilizing a "pop-top" or forward-hinged cabin top to increase headroom. When the top is closed, the cabin provides roughly 4 feet 3 inches of clearance; when raised, this expands to over 5 feet, allowing for much more comfortable movement at anchor. The interior layout is standard for its class, featuring a double V-berth in the bow and two quarter berths in the main cabin, providing sleeping space for four adults.

Storage is located beneath the berths, and a portable head is typically situated between the V-berths. While most units were built with a simple, sparse interior focused on weight reduction, some variations included a small sliding galley. The Helsen 20 shares significant DNA with the Helsen 22, and the hull was so well-regarded for its stability that it served as the baseline for other Florida builders. Most notably, the Watkins 23 was originally a modified version of the Helsen 22 hull, produced with the designer's permission.

The Helsen 20 has maintained a steady, if niche, presence in nautical media as a prime example of the "pocket cruiser" philosophy. Its designer, Johannes Helsen, became a prominent figure in the Florida yachting scene, eventually owning a major Hunter dealership and contributing significantly to the regional growth of small-boat cruising. The model is frequently mentioned in historical surveys of Florida-built fiberglass boats, such as the Cruising World Annual, as a reliable entry-point for new sailors.

Known Issues & Buyer’s Checklist

Prospective buyers should approach a Helsen 20 with a specific focus on the mechanical and structural integrity of the swing keel system.

  • Swing Keel Pivot and Cable: The most critical failure point is the keel pivot pin and the lifting cable. Owners have reported issues with the keel "swelling" inside the trunk if non-original repairs (such as poorly executed fiberglass layers) were added, which can wedge the keel in the "up" position.
  • Keel Trunk Leaks: The housing for the swing keel is integrated into the hull; stress from grounding or age can cause cracks or leaks around the pivot point.
  • Deck Core Softness: Like many boats of this era, the Helsen 20 uses a balsa or plywood core. Delamination and soft spots are common around the mast step and chainplates.
  • Mast Step Compression: Check the structural support beneath the mast step. Over-tensioning the rig or water intrusion into the deck core can cause the cabin top to compress over time.

Community & Resources

While there is no longer a formal manufacturer-backed association, the Helsen community remains active through various technical forums and local sailing clubs in the Southeast United States. Technical specifications and historical brochures are occasionally maintained by the Watkins Owners Association due to the shared history between the two brands.

The Verdict

The Helsen 20 is a classic, no-frills trailer sailer that excels in shallow-water environments where deeper draft vessels cannot venture.

Pros

  • Excellent shallow-water capability (1' 2" draft with keel up).
  • Easily trailerable with a standard SUV.
  • Innovative "pop-top" provides usable headroom in a small footprint.

Cons

  • Swing keel maintenance is labor-intensive and critical for safety.
  • Relatively light ballast can lead to significant heeling in gusts.
  • Aging fiberglass requires a careful survey for deck rot and keel trunk issues.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Wing
Rudder
1x Outboard
Ballast
400 lbs (Lead)
Displacement
2000 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
20.08 ft
Waterline Length (LWL)
17.33 ft
Beam
7.33 ft
Draft
-
Max Headroom
4.25 ft
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
181 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
18.24
Ballast / Displacement Ratio
20
Displacement / Length Ratio (D/L) Ratio
171.55
Comfort Ratio
11.98
Capsize Screening Formula
2.33
Hull Speed
5.58 kn