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Sailboat Specifications

Inferno 29

Fractional Sloop · Fin W/Spade Rudder

Designed by Håkan Södergren · Built by Naboats (Fin) · First built 1982

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LOA 28.87 ft  ·  Beam 8.20 ft  ·  Displacement 5,732.00 lb  ·  Sail Area 410.00 ft²  ·  Fractional Sloop  ·  Fin W/Spade Rudder
About the Inferno 29 Sailboat

Designed by renowned Swedish naval architect Håkan Södergren and built by Finland's Naboats starting in 1982, this 29-footer represents Nordic sailing craftsmanship at its finest. The Inferno 29 strikes an appealing balance between performance and practicality, making it well-suited for spirited coastal cruising and club racing. With a length overall of 28.87 feet and a waterline length of 23.95 feet, the design showcases classic Scandinavian proportions. The fin keel and spade rudder configuration, combined with a fractional sloop rig carrying 410 square feet of sail, delivers responsive handling and good upwind performance. At 5,732 pounds displacement with 2,094 pounds of ballast, the boat offers reasonable stability while maintaining the nimble feel characteristic of European designs. The comfort ratio of 21.12 suggests this is more performance-oriented than a heavy cruiser, while the capsize screening formula of 1.84 indicates good stability for coastal waters. The SA/Displacement ratio of 20.54 confirms adequate power for light to moderate conditions. Hull speed reaches 6.56 knots, typical for this size range. Best suited for experienced sailors who appreciate responsive handling, the Inferno 29 excels in day sailing, weekend cruising, and competitive sailing in protected to semi-protected waters.

Dimensions & Specifications
LOA (Length Overall) 28.87 ft / 8.80 m
LWL (Waterline Length) 23.95 ft / 7.30 m
Beam 8.20 ft / 2.50 m
Max Draft 4.92 ft / 1.50 m
Displacement 5,732.00 lb / 2,600 kg
Ballast 2,094.00 lb / 950 kg
Ballast Type Lead
Sail Area (Reported) 410.00 ft² / 38.09 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Håkan Södergren
Builder NaBoats (FIN)
First Built 1982
Related Sailboats J/29 · Mirage 29 · Cal 2 29 · Tanzer 29 · Watkins 29
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Engine & Accommodations
Engine Make Yanmar or BMW
Engine Type Diesel
Fuel Capacity 10 gals / 38 L
Water Capacity 17 gals / 64 L
Frequently Asked Questions

What is the Inferno 29's sail area to displacement ratio?

The Inferno 29 has a Sail Area to Displacement ratio (SA/D) of 20.54. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Inferno 29's comfort ratio?

The Inferno 29 has a Ted Brewer Comfort Ratio of 21.12. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Inferno 29 safe for offshore sailing?

The Inferno 29 has a Capsize Screening Formula value of 1.84. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Inferno 29?

The theoretical hull speed of the Inferno 29 is 6.56 kn knots, calculated from its waterline length.

How much does a Inferno 29 weigh?

The Inferno 29 has a displacement of 5,732.00 lb and a length overall (LOA) of 28.87 ft.

Who designed the Inferno 29?

The Inferno 29 was designed by Håkan Södergren, first built in 1982.