
Thunderbird Boats, founded by Dick Genth, is a company that has been believed to be the largest producer of boats in the country. In 1958, Richard Cole, a Naval Architect, designed the tri-hull boat, also known as the cathedral hull, while working for Thunderbird Boats in Miami. Thunderbird Boats was acquired by Alliance Machine and Foundry in 1961, and the company continued to produce Thunderbird models in North Miami. The tri-hull design was discontinued in 1979, and the company shifted its focus to the offshore deep-V hull configuration.
| Characteristics | Values |
|---|---|
| Company | Thunderbird Boats |
| Designer | Richard Cole |
| Year of design | 1958 |
| Location | Miami |
| Material | Fiberglass |
| Hull design | Tri-hull/Cathedral hull |
| Hull types | Monohull, Catamaran, Trimaran |
| Hull shape | Deep V center hull with three distinct bow sponsons |
| Bow | Wide |
| Stern | One solid hull from port to starboard |
| Length | 17.5-19 feet |
| Width | 80" |
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What You'll Learn
- Thunderbird boats were built by Thunderbird, a company founded by Dick Genth
- The tri-hull design was created by naval architect Richard Cole in 1958
- The design was revolutionary, offering more buoyancy and stability than monohull boats
- Thunderbird was acquired by Alliance Machine and Foundry in 1961
- The tri-hull design was discontinued in 1979

Thunderbird boats were built by Thunderbird, a company founded by Dick Genth
In 1961, Thunderbird was acquired by Alliance Machine and Foundry, which then purchased Formula in 1964. Both Formula and Thunderbird models were produced in North Miami. In 1969, Thunderbird/Formula was acquired by an Atlanta-based conglomerate, Fuqua Industries.
The Thunderbird tri-hull boat was first designed in 1958 by Richard Cole, a naval architect employed by Thunderbird Boats in Miami. The tri-hull design, also known as a cathedral hull, offered more buoyancy and stability than monohull boats. Cole's design was initially created using wood, but he later transitioned to using fiberglass in the 1960s.
In the 1970s, Thunderbird discontinued the tri-hull design and shifted its focus to the offshore deep-V hull configuration of the Formula models. The company continued to evolve and expand, with production capacity increasing over the years. Thunderbird boats remain popular, with used T-Birds made of plywood or fiberglass construction available for sale in various regions.
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The tri-hull design was created by naval architect Richard Cole in 1958
The tri-hull design, also known as the cathedral hull, was created by naval architect Richard Cole in 1958 while he was working for Thunderbird Boats in Miami. The design featured three distinctive hull forms, with a bow as wide as the stern, and offered more buoyancy and stability than monohull boats.
Cole's design was a hybrid of a trimaran and a monohull boat, with sponsons on either side of the main hull that provided additional buoyancy and width at the bow, resulting in a larger interior volume. This unique hull shape gave the appearance of three separate hulls, but in reality, it was a single hull with sponsons that blended into one hull as they went aft.
At the time, most boats were still constructed from wood, but Cole's innovative use of the new material, fiberglass, in his tri-hull design set him apart. His creations came from a drawing board, not a CAD/CAM program, showcasing his impressive skills. The original tri-hull boats tended to pound when driven into the waves, providing a bumpy and wet ride experience.
Over the years, boat builders have built upon Cole's original design, utilising modern fabrication techniques to enhance and perfect it. They have retained the inherent stability and buoyancy of the tri-hull form while improving the ride experience. Today, tri-hull boats are commonly used for deck boats, taking advantage of their wider bows for extra seating space and their overall stability for a comfortable boating experience.
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The design was revolutionary, offering more buoyancy and stability than monohull boats
Thunderbird boats were built by Thunderbird, a company that was once believed to be the largest producer of boats in the country. The company was acquired by Alliance Machine and Foundry in 1961, which was then bought by Fuqua Industries in 1969. Thunderbird changed hands again in 1976 when it was purchased by Vic Porter, who remains actively involved in the business.
The Thunderbird tri-hull boat, also known as the cathedral hull, was first designed in 1958 by Richard Cole, a naval architect working for Thunderbird Boats in Miami. The design was revolutionary, offering more buoyancy and stability than monohull boats. The tri-hull design has a deep V-shaped centre hull with three distinct bow sponsons that blend into one hull, providing added buoyancy. This gives the boat a wider bow, which offers extra space and buoyancy. The sponsons also provide stability, making the boat comfortable for those who are not used to being on the water.
The tri-hull design is a hybrid of a trimaran and a monohull boat. While it appears to have three separate hulls, it is in fact a single hull with sponsons that protrude from the sides of the main hull. This design adds buoyancy and width to the bow, increasing the interior volume of the boat. The tri-hull design is particularly well-suited for deck boats, as the wider bow provides space for extra seating, accommodating more guests.
The original tri-hull boats tended to pound when driven into the waves, resulting in a rough, wet ride. However, boat designers have since improved upon Cole's original design, utilising modern fabrication techniques to create a smoother ride. Today, tri-hull boats are predominantly used for deck boats, taking advantage of their added buoyancy, stability, and space.
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Thunderbird was acquired by Alliance Machine and Foundry in 1961
The Thunderbird tri-hull boat was designed by Richard Cole, a naval architect, in 1958. Cole was working for Thunderbird Boats in Miami at the time. Thunderbird Boats was acquired by Alliance Machine and Foundry in 1961.
Thunderbird Boats was a successful company that was believed to be the largest producer of boats in the country at one point. The company had an impressive image, with a fleet of delivery trucks, loading channels with cranes, and fancy offices.
Under the new ownership of Alliance Machine and Foundry, Thunderbird continued to prosper. In 1964, Alliance Machine and Foundry purchased Formula, another boat company, and began producing both Thunderbird and Formula models in North Miami.
In 1969, Thunderbird/Formula was acquired by Fuqua Industries, an Atlanta-based conglomerate. This marked another change in ownership for Thunderbird, which had now come under the umbrella of a larger corporation.
The tri-hull design, also known as the cathedral hull, was a revolutionary concept created by Richard Cole. It offered more buoyancy and stability compared to monohull boats. The design featured three distinctive hull forms and a bow as wide as the stern, giving it a unique appearance.
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The tri-hull design was discontinued in 1979
Thunderbird boats, founded by Dick Genth, was acquired by Alliance Machine and Foundry in 1961 and then by Fuqua Industries in 1969. In 1976, Vic Porter purchased Thunderbird/Formula from Fuqua Industries.
The tri-hull design, also known as the cathedral hull, was first designed by Richard Cole, a naval architect, in 1958 while working for Thunderbird Boats in Miami. The design was revolutionary, offering more buoyancy and stability than monohull boats. The tri-hull design had three distinctive hull forms and a bow as wide as the stern. It is a single hull boat with sponsons that protrude from the hull, providing added buoyancy and stability.
However, in 1979, Thunderbird discontinued the tri-hull design and shifted its focus to the offshore deep-V hull configuration of the Formula models. This decision was likely influenced by the acquisition of the company by Vic Porter, who prioritized the deep-V hull design. The deep-V hull design offered improved performance and handling, particularly in rough waters, which may have been a factor in the decision to discontinue the tri-hull design.
Additionally, the tri-hull design had some drawbacks. Despite offering increased buoyancy, the triple bows of the tri-hull design tended to pound when driven into the waves, resulting in a rough and wet ride. This issue may have contributed to Thunderbird's decision to discontinue the tri-hull design in favor of the more modern and efficient deep-V hull configuration.
While the tri-hull design was discontinued by Thunderbird, it has left a lasting impact on boat design. Even today, elements of the tri-hull design can be seen in the bows of many modern boats, demonstrating the influence of Richard Cole's innovative work. The tri-hull design continues to be appreciated and utilized by small boat owners and anglers, who value its stability and casting platform.
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Frequently asked questions
The Thunderbird tri-hull boat was first designed by Richard Cole, a Naval Architect, in 1958 while he was working for Thunderbird Boats in Miami.
A tri-hull boat is a hybrid of a trimaran and a monohull boat. It has a deep V centre hull with three distinct bow sponsons, which blend into one hull as they go aft, providing added buoyancy.
The Thunderbird sailboat can be made of marine plywood or with a fibreglass hull and deck.











































