Jongert 20DS Information, Review, Specs

Sailing Performance & Handling

The Jongert 20DS is a quintessential heavy-displacement cruiser, often tipping the scales at over 50 tons. This mass, combined with a full or long-finned keel, results in a motion at sea that is remarkably stable and forgiving. While it does not boast the high sail-area-to-displacement (SA/Disp) ratios found in modern carbon-fiber cruisers, the ketch rig provides a versatile sail plan that is easily managed by a small crew. In heavy air, the ability to sail under "jib and jigger" (staysail and mizzen) allows the 20DS to maintain a comfortable upright posture while lighter boats are forced to reef aggressively.

Handling under power is a critical component of the 20DS experience, as these yachts are frequently equipped with high-horsepower engines (often Mercedes or MTU) to maintain cruising speeds when the wind fails. Maneuvering in tight marinas can be challenging due to the significant windage of the high-profile deckhouse and the inertia of the steel hull; consequently, a powerful bow thruster is considered essential equipment for this model. Technical reviews from the era often note that while the 20DS is not a light-air performer, it comes alive in Force 4 winds and above, where its momentum allows it to power through chop that would stop smaller vessels.

Interior Comfort & Variations

The "DS" or Deck Saloon configuration is the defining feature of the interior, designed to provide a panoramic view of the horizon even while seated in the main cabin. This raised seating area serves as the social hub of the boat, bridging the gap between the sunken galley and the lower sleeping quarters. Jongert was famous for its "Traditional Line" interiors, which utilized high-gloss hardwoods—often teak or mahogany—paired with intricate brass fittings and hand-stitched leather.

The standard layout typically features a sprawling master stateroom aft, taking full advantage of the yacht's beam and the iconic stern windows. Forward of the deck saloon, one usually finds two guest cabins with en-suite heads and a dedicated crew cabin in the bow. Variations of the 20DS exist; some owners opted for a "Modern Line" interior which traded the dark woods for lighter finishes and more contemporary lines, though the structural bulkheads remained largely consistent across the series. The sibling 21S and 22S models often utilized the same hull mold but extended the aft sections to accommodate larger lazarettes or expanded owner suites.

Popular Mentions & Media

The Jongert 20DS and its larger siblings have long been the choice of high-profile owners seeking anonymity and seafaring reliability. While specific celebrity owners are often protected by non-disclosure agreements typical of the superyacht industry, the model frequently appears in retrospective features by Boat International regarding the evolution of the Dutch pedigree yacht. The 20DS is often cited in maritime literature as the precursor to the modern semi-custom luxury yacht market, bridging the gap between one-off builds and production boats.

Known Issues & Buyer’s Checklist

Prospective buyers of a Jongert 20DS must approach the purchase with a focus on structural preservation, as the maintenance of a steel hull requires diligent oversight.

• Corrosion in "Dead Zones": Inspect the areas beneath the chain locker and the lowest points of the bilge. If the protective epoxy coating has been breached and water has sat undisturbed, localized "pitting" can occur.
• Teak Deck Longevity: Jongert decks were traditionally thick and high-quality, but many 20DS models are now reaching the age where the original teak may be thin or the caulking may have failed. Given that these are often laid over steel or aluminum, any moisture ingress can lead to hidden oxidation.
• Hydraulic Systems: The 20DS relies heavily on hydraulics for furling, winches, and bow thrusters. Buyers should check for "milky" hydraulic fluid (indicating water contamination) and inspect all seals for leaks, as rebuilding these custom systems can be costly.
• Insulation Integrity: Older Jongerts used various insulation materials between the metal hull and the wood interior. A surveyor should check for signs of "sweating" or condensation behind cabinets, which can lead to mold or damage to the fine joinery.

Community & Resources

Owners and enthusiasts of these Dutch classics are supported by a dedicated network that values the shipyard's heritage. The most prominent resource is the Jongert Shipyard archive, which maintains records for many of the hulls built in Medemblik. While the company has transitioned through various ownership structures, they remain the primary source for original blueprints and technical specifications. Technical discussions and refit logs are also frequently documented by specialized yacht management firms that cater to the "Classic Jongert" niche.

The Verdict

The Jongert 20DS is a "forever boat" for the sailor who values build quality and safety over contemporary speed. It is a vessel designed to be lived on for months at a time, providing a level of comfort that few modern production yachts can match.

Pros:

• Exceptional Build Quality: Overbuilt steel construction offers peace of mind in extreme conditions.
• Timeless Aesthetic: The "Traditional Line" styling remains prestigious in any harbor in the world.
• Redundant Systems: Designed for world cruising with large tankage and heavy-duty machinery.

Cons:

• High Maintenance: Steel hulls and extensive teak require a significant annual budget and constant vigilance.
• Weight: Sub-optimal performance in light winds (under 10 knots).
• Complexity: The integration of hydraulic and electrical systems requires specialized knowledge to troubleshoot.