John Hanna laid down the Tahiti as a ketch-rigged monohull with a long keel and attached rudder anchor. The length-to-beam ratio is 3.00 and the displacement-length ratio of 408 places her among ultra heavy cruisers. With a 27-foot waterline and 10-foot beam, she displaces about 18,000 pounds and shows a wetted surface near 290 square feet. The capsize screening value of 1.53 and Motion Comfort Ratio of 46.1 confirm a bias toward safe, forgiving motion.
Because the boat was offered as a plan, many original Tahitis were built by do-it-yourself builders worldwide before fiberglass, and the type is found with a variety of modifications and personal touches anchor. Dozens of the Dreadnaught 32 were built by Dreadnaught Boatworks in California, but the Tahiti was never a single-factory product. The hull is solid; the keel draws 4.36 to 4.66 feet by load, suiting shallow marinas.
The ketch rig splits the sail plan, and the sail-area/displacement ratio of 12.04 marks her undercanvased by modern light-air standards anchor. Theoretical hull speed is about 7 knots; immersion is roughly 941 pounds per inch. Owners who sailed her long distances considered the Tahiti the most perfect, stable, all-around little deep-water sailor ever conceived, and she logged many ocean crossings and over a dozen circumnavigations, one twice around anchor.
No two Tahitis are alike inside given the plan-built nature, but the 30-foot length and 10-foot beam suit a simple cruising layout. The marketing promise of curing wanderlust matched the owner reports of world-circling use.
The attached rudder and long keel are straightforward to maintain, and solid hull construction avoids cored-laminate survey questions. Because so many were owner-built, each example's quality traces to its builder.
The Verdict
The Tahiti Ketch is a historically significant little cruiser whose heavy hull, ketch rig, and long keel carried dozens of sailors around the world. She is not quick, but as a slow voyaging platform she has a proven record few of her size match.
Pros
- Proven offshore record with over a dozen circumnavigations logged
- Ultra-heavy cruiser proportions and 1.53 capsize screening value favor stability
- Shallow 4.36–4.66 ft draft eases marina access
- Simple attached rudder and solid hull
Cons
- Sail-area/displacement ratio of 12.04 means modest light-air performance
- Plan-built heritage means wide variation in construction quality
- No single production standard
