Fjordling 17HT: Norwegian Deep-V with Self-Ballasting Innovation
Iconic 1960s dayboat blends deep-V performance and patented stability tunnel.
The Fjordling 17HT is a classic Norwegian dayboat produced by Fjord Boats from the early 1960s to the 1970s. Designed by naval architect Jan Herman Linge, it features a pioneering 24-degree deep-V fiberglass hull that provides excellent handling in rough seas. A key innovation is the patented water tunnel in the hull, which fills with water at low speeds or when stationary to enhance stability, then drains underway for optimal performance.
Measuring 17 feet in length with a lightweight construction of approximately 400 kg unladen, the boat was originally equipped with a modest 20 hp outboard engine. It includes a hardtop cabin for weather protection, V-berth forward seating, and a rear bench, making it suitable for family day cruising. With modern upgrades, such as engines up to 300 hp, it can achieve speeds of 30-35 knots or more while maintaining its balanced ride.
The design demonstrates several engineering principles:
* Deep-V hull configuration for wave-cutting and reduced pounding in choppy conditions.
* Ballast tunnel system for self-adjusting stability without added weight.
* Adaptable transom and stringers to support high-power outboards after reinforcement.
* Compact layout balancing utility and performance for coastal navigation.
Restored examples often incorporate contemporary features like advanced electronics and durable coatings, preserving the boat's structural integrity and aesthetic appeal.
Learn more about boat design: