The Seafarer Tripp 30 stands as a seminal example of the transition from traditional wooden yacht construction to the fiberglass era. Designed by the legendary William H. Tripp Jr. in the late 1950s, the model was initially commissioned by Seafarer Fiberglass Yachts during the company's phase as an importer. These early hulls were meticulously crafted by the G. DeVries Lentsch shipyard in Amsterdam, a pedigree that conferred a level of joinerwork and structural finish often superior to the mass-produced domestic boats that followed. As a CCA (Cruising Club of America) rule-influenced design, the Tripp 30 captures the aesthetic of a bygone era, featuring a graceful sheerline, a traditional long keel with a protected rudder, and a narrow beam relative to its length. While later Seafarer models like the Seafarer 31 (also a Tripp design) would lean more toward production efficiency, the Tripp 30 remains the "connoisseur’s" Seafarer, valued for its heavy-displacement stability and Dutch-built origins.
Seafarer Tripp 30 Information, Review, Specs

- Make
- Seafarer
- Model
- Tripp 30
- Builder
- Seafarer Yachts
- Designer
- William Tripp Jr.
- Number Built
- 30
- Production Year(s)
- 1963 - ??
Sailing Performance & Handling
The sailing characteristics of the Tripp 30 are defined by its high displacement-to-length ratio and its classic underwater profile. With a displacement hovering around 9,000 pounds on a waterline of just 20 feet, the boat possesses significant momentum, allowing it to power through a choppy head sea where lighter modern vessels might hobby-horse. Its ballast ratio, often exceeding 35%, provides a stiff, upright sailing posture that Bill Tripp’s designs were famous for.
In terms of handling, the Tripp 30 is a "balanced" boat that tracks exceptionally well. Owners often report that once the sails are trimmed, the vessel can hold its course with minimal helm correction, a trait highly desirable for long-distance coastal cruising. However, the traditional full keel does present trade-offs; the boat has a larger turning radius than fin-keel contemporaries and can be challenging to maneuver in tight marinas, particularly when backing under power. Its sail plan is typically a masthead sloop, providing ample power in light air, though the heavy hull requires a decent breeze to truly "wake up" and reach its theoretical hull speed.
Interior Comfort & Variations
For a 30-foot yacht designed in the late 1950s, the Tripp 30 offers a surprisingly functional, albeit cozy, interior. The layout usually follows the classic four-berth configuration: a V-berth forward, a central head compartment, and two settee berths in the main cabin. Because the early models were finished by Lentsch in the Netherlands, the use of African mahogany and high-quality cabinetwork is a hallmark of this specific model.
Variations of the Tripp 30 are primarily distinguished by their manufacturing era rather than layout changes. The "Dutch-built" versions are often identified by their heavier bronze hardware and more intricate interior moldings. As Seafarer transitioned toward the 31-foot model, the Tripp 30’s design philosophy evolved into the Seafarer 31 Mark I, which offered slightly more beam and internal volume. Prospective buyers should note that headroom is adequate but may feel cramped for sailors over six feet tall, a common constraint of the CCA era’s low-profile coachroofs.
Known Issues & Buyer’s Checklist
When inspecting a Seafarer Tripp 30, the age of the vessel necessitates a rigorous structural survey. The following areas are high-signal "gotchas" for this specific model:
- Deck Core Integrity: Like many early fiberglass boats, the Tripp 30 uses a balsa or plywood core in the deck. Over decades, moisture can penetrate through improperly bedded stanchions or cleats, leading to delamination. Soft spots on the side decks are a critical red flag.
- Chainplate Anchors: On the Tripp 30, the chainplates are often bolted to the bulkheads or reinforced hull sections. These should be inspected for "weeping" rust or signs of movement, as the original sealant has likely reached the end of its lifespan.
- The "Dutch Standards": Early Lentsch-built models may still feature original metric plumbing or electrical wiring that does not comply with modern ABYC standards. A complete rewiring is often necessary for safety and insurance purposes.
- Keel Bolt and Sump Inspection: While the keel is encapsulated or integrated in many Tripp designs, any version with external ballast requires a close look at the keel-to-hull joint for "smiles" or signs of structural stress.
- Engine Repowering: Many Tripp 30s were originally equipped with the Atomic 4 gasoline engine. While reliable if maintained, many have been replaced with small diesels (like the Universal or Yanmar series). A boat still sporting an original gasoline engine should be priced accordingly to account for a future repower.
Community & Resources
Owners of the Tripp 30 often find common ground within the broader Seafarer community. Technical data and historical brochures are frequently shared through the Seafarer Yacht Owners Association, which maintains archives on the various iterations of the Tripp and McCurdy & Rhodes designs. Additionally, because Bill Tripp Jr. was so prolific, his legacy is preserved by his son’s firm, Tripp Design Naval Architecture, which occasionally provides historical context for his early fiberglass breakthroughs.
The Verdict
The Seafarer Tripp 30 is a "gentleman’s cruiser" that prioritizes seaworthiness and aesthetic grace over interior volume and raw speed. It is an ideal vessel for the traditionalist who appreciates the craftsmanship of the Dutch-built era and desires a boat capable of handling heavy weather with composure.
Pros:
- Exceptional sea-kindliness and tracking due to the Tripp-designed full keel.
- High-quality interior joinerwork in early Amsterdam-built models.
- Timeless aesthetic that remains highly regarded in classic yacht circles.
- Robust hull layups that are significantly thicker than modern production standards.
Cons:
- Limited interior volume and headroom compared to modern 30-footers.
- Difficult to maneuver in reverse and tight quarters.
- High maintenance requirements for aging exterior teak and legacy systems.
- Heavy displacement makes it less competitive in light-air racing.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x —
- Ballast
- 2900 lbs (Lead)
- Displacement
- 9600 lbs
- Water Capacity
- 30 gal
- Fuel Capacity
- 20 gal
Dimensions
- Length Overall (LOA)
- 30.33 ft
- Waterline Length (LWL)
- 20 ft
- Beam
- 8.5 ft
- Draft
- 4.5 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 369 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 13.07
- Ballast / Displacement Ratio
- 30.21
- Displacement / Length Ratio (D/L) Ratio
- 535.71
- Comfort Ratio
- 37.12
- Capsize Screening Formula
- 1.6
- Hull Speed
- 5.99 kn