Design and Construction
Hanna drew the Tahiti as a ketch-rigged monohull with a long keel and attached rudder. Its length-to-beam ratio is 3.00, while a displacement-length ratio of 408 places it among ultra-heavy cruisers.
The boat has a 27-foot waterline and a 10-foot beam, displaces about 18,000 pounds, and has a wetted surface near 290 square feet. The keel draws 4.36 to 4.66 feet, depending on load, making the boat suitable for shallow marinas. Immersion is roughly 941 pounds per inch.
Many original Tahitis were built around the world by do-it-yourself builders before fiberglass. As a result, the type includes a wide range of modifications and personal touches. Dozens of Dreadnaught 32s were built by Dreadnaught Boatworks in California, but the Tahiti itself was never a single-factory product.
The hull is solid, avoiding the survey questions associated with cored laminates. The attached rudder and long keel are also straightforward to maintain. However, because so many boats were owner-built, the construction quality of each example depends on its builder.
Rig and Performance
The ketch rig divides the sail plan into more manageable sections. However, its sail-area/displacement ratio of 12.04 leaves the Tahiti undercanvased by modern light-air standards.
Theoretical hull speed is about 7 knots. A capsize screening value of 1.53 and Motion Comfort Ratio of 46.1 confirm the design’s bias toward safe, forgiving motion and stability.
Owners who sailed the Tahiti over long distances considered it the most perfect, stable, all-around little deep-water sailor ever conceived. The design logged many ocean crossings and more than a dozen circumnavigations, including one boat that circumnavigated twice.
Accommodation
No two Tahitis are alike inside because they were built from plans rather than to a single production standard. Still, the 30-foot length and 10-foot beam lend themselves to a simple cruising layout.
The original marketing promise of curing wanderlust was borne out by owners who used their boats to circle the world.
The Verdict
The Tahiti Ketch is a historically significant little cruiser. Its heavy hull, divided ketch rig, and long keel carried dozens of sailors around the world. It isn’t quick, but as a slow voyaging platform it has a proven record that few boats of its size can match.
Pros
- Proven offshore record, including more than a dozen circumnavigations
- Ultra-heavy-cruiser proportions and a 1.53 capsize screening value that favor stability
- Shallow 4.36–4.66 ft draft for easier marina access
- Simple attached rudder and solid hull
Cons
- Sail-area/displacement ratio of 12.04 means modest light-air performance
- Plan-built heritage brings wide variation in construction quality
- No single production standard
