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Sailboat Specifications

Tmi 30

Fractional Sloop · Fin W/Spade Rudder

Designed by Halsey Herreshoff · Built by Texas Marine International · First built 1979

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LOA 29.92 ft  ·  Beam 11.00 ft  ·  Displacement 9,500.00 lb  ·  Sail Area 436.00 ft²  ·  Fractional Sloop  ·  Fin W/Spade Rudder
About the Tmi 30 Sailboat

A relatively obscure entry in the sailboat world, the Tmi 30 is a vessel about which detailed documentation remains sparse, making it something of a curiosity for researchers and prospective buyers alike. What can be reasonably inferred from its 30-foot classification is that it likely sits in a versatile mid-size category, well suited to coastal cruising and daysailing with the potential for occasional offshore passages in capable hands. Boats of this size range tend to offer a practical balance between manageable single-handed or short-handed sailing and enough interior volume to accommodate a small crew for weekend adventures. Without a wealth of published specifications or a prominent racing pedigree attached to the name, the Tmi 30 may appeal most to buyers seeking an affordable entry point into keelboat ownership rather than those chasing performance benchmarks. If you are considering a Tmi 30, thorough hands-on inspection and consultation with previous owners or a qualified marine surveyor is especially recommended, given the limited publicly available data on this model's construction standards and sailing characteristics.

Dimensions & Specifications
LOA (Length Overall) 29.92 ft / 9.12 m
LWL (Waterline Length) 26.00 ft / 7.92 m
Beam 11.00 ft / 3.35 m
Max Draft 4.92 ft / 1.50 m
Displacement 9,500.00 lb / 4,309 kg
Ballast 4,250.00 lb / 1,928 kg
Sail Area (Reported) 436.00 ft² / 40.51 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Halsey Herreshoff
Builder Texas Marine International
First Built 1979
Last Built 1981
Related Sailboats Seidelmann 299 · Santana 30 · Catalina 30 · Hunter 30 · Ericson 30
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Frequently Asked Questions

What is the Tmi 30's sail area to displacement ratio?

The Tmi 30 has a Sail Area to Displacement ratio (SA/D) of 15.6. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Tmi 30's comfort ratio?

The Tmi 30 has a Ted Brewer Comfort Ratio of 22.16. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Tmi 30 safe for offshore sailing?

The Tmi 30 has a Capsize Screening Formula value of 2.08. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Tmi 30?

The theoretical hull speed of the Tmi 30 is 6.83 knots, calculated from its waterline length.

How much does a Tmi 30 weigh?

The Tmi 30 has a displacement of 9,500.00 lb and a length overall (LOA) of 29.92 ft.

Who designed the Tmi 30?

The Tmi 30 was designed by Halsey Herreshoff, first built in 1979.