Her 26 percent ballast ratio, 3.03 length-to-beam ratio, and displacement-length ratio of 390 place her among what one reference calls “ultra heavy cruisers.” This is a substantial offshore design that favors deliberate motion and passage comfort over light-air performance.
Design and Construction
The Van de Stadt 30 has a solid fiberglass hull, with no cored laminate to provide a path for moisture. The hull’s wetted surface is about 258 square feet.
Her fin keel draws between 5.09 and 5.39 feet by load, allowing access to most marinas. The immersion rate is about 798 pounds per inch. A skeg-hung rudder completes the underwater profile.
The boat’s capsize screening value is 1.93, within accepted offshore ranges. A motion comfort ratio of 26.8 points to an easy, deliberate motion on passage.
Rig and Handling
The Van de Stadt 30 carries more rig than 98 percent of comparable sailboats, which is read as significantly overrigged. Her masthead rig has a sail-area-to-displacement ratio of 14.9, rising to 17.8 with a 135 percent genoa. Even so, the base sail-area-to-displacement ratio is modest without the larger headsail, and her ultra-heavy displacement limits light-air performance.
The halyards are 90 feet long and 3/8 inch in diameter. The mainsheet is 77.7 feet of 1/2-inch line. Theoretical hull speed is 6.3 knots.
Accommodations and Cruising Range
A beam of 10.27 feet and a waterline length of 22.3 feet give the Van de Stadt 30 a moderate footprint rather than the volume of later wide-body designs.
Diesel capacity is 105 gallons, large for a 31-footer and pointing to long-range cruising. That capacity also makes fuel-system upkeep an important part of ownership.
Known Issues and Ownership
No structural defects, osmotic problems, rigging failures, or drainage faults specific to the Van de Stadt 30 appear in the available material. Its solid-hull construction also means there’s no cored moisture path to chase.
Van de Stadt left active leadership in 1978. Cees van Tongeren then took over the drawing office.
The Verdict
The Van de Stadt 30 is a heavy, solid offshore sloop from the early partnership years. Her design favors passage comfort and marina access, while her displacement and modest base sail-area-to-displacement ratio work against light-air performance.
Pros
- Solid fiberglass hull with no cored laminate to degrade
- Lead-ballasted fin keel with a moderate, roughly 5-foot draft for marina access
- Large diesel capacity that supports extended cruising range
- Capsize screening and comfort ratios consistent with offshore intent
Cons
- Base sail-area-to-displacement ratio is modest without a large genoa
- Ultra-heavy displacement limits light-air performance
