Design and Construction
The Trintella 53 measures 53.9 feet overall, with a beam of 15.42 feet and a displacement of roughly 50,600 pounds. Van de Stadt designed the hull for both coastal and inland passages. Its centerboard keel is a pivoting lifting keel, allowing the boat to trade deep draft for shallow-water access when the board is raised while retaining a seaworthy offshore profile.
With the board down and the boat loaded, draft is roughly 5.58 to 5.88 feet—about 1.70–1.80 meters—which allows access to most marinas. The hull is solid fiberglass, with about 15,400 pounds of lead ballast and a ballast-to-displacement ratio near 31 percent.
A length-to-beam ratio of 3.50 and a displacement-length ratio of 214 place the Trintella 53 firmly among heavy, volume-oriented cruisers rather than light racing boats.
Rig, Performance, and Handling
The ketch rig divides the sail area into more manageable sections. The running-rig dimensions show the scale involved: the jib and genoa sheets are about 53.9 feet long and 5/8 inch in diameter; the mainsheet runs 134.8 feet; and the spinnaker sheets reach 118.6 feet. All use 5/8-inch line.
A sail-area-displacement ratio of 23.80 suggests a moderately powered hull for its weight. The calculated maximum speed is about 8.6 knots, compared with a theoretical displacement-hull limit of 8.8 knots. Wetted surface is about 76m2 (818 ft2), which contributes to resistance.
The numbers describe a stable, easy-going hull rather than a lively one. The capsize screening value is 1.82, and the motion comfort ratio is 33.7. An immersion rate of about 2,327 pounds per inch indicates how much weight is required to depress the waterline.
Accommodations, Tankage, and Auxiliary Power
Below, the standard layout provides six berths and suits a small crew or a couple cruising with guests. The boat is equipped for long stays aboard, with 1,250 liters (330 US gallons) of fresh water and 798 liters (210 US gallons) of fuel.
The listed inboard diesel may be equipped at 121 hp with shaft drive, a conservative propulsion choice for a yacht of this displacement.
The Verdict
The Trintella 53 is a specialist’s cruiser: a van de Stadt centerboard ketch built in tiny numbers and designed for long stays aboard and flexible draft rather than speed or resale liquidity. Its heavy-displacement hull, deep but retractable keel, and generous tankage make it a serious passagemaker for shoal-water explorers. However, the scarcity of hulls means a buyer will be operating without a broad support network.
Pros
- Pivoting centerboard keel supports coastal and inland cruising, with reduced draft for marina access
- Six berths, 330 US gallons of fresh water, and 210 US gallons of fuel provide extended independence
- Stable, comfortable hull metrics, including a capsize screening value of 1.82 and a motion comfort ratio of 33.7
Cons
- Only a few hulls were built, limiting fleet knowledge and spares commonality
- Heavy displacement and a large wetted surface cap calculated speed near 8.6 knots
- The ketch rig’s long sheet runs demand careful rig management
