Streamline Information, Review, Specs

The genesis of the Streamline can be traced to 1999, when Mader Bootswerft, already celebrated for its Olympic-grade dinghies and keelboats, decided to expand its portfolio with a dedicated three-man keelboat. The project was a collaboration with Judel/Vrolijk & Co., a design office known for its innovative and high-performance yacht designs. This partnership married Mader's advanced construction techniques, honed over decades of building lightweight and robust racing boats, with Judel/Vrolijk's aerodynamic and hydrodynamic expertise.

Mader Bootswerft, established in 1952, has consistently employed state-of-the-art composite materials and construction methods, including epoxy foam sandwich construction since 1965. For the Streamline, this translated into a lightweight yet stiff fiberglass hull and deck, ensuring optimal performance and durability on the racecourse. The design features a comparatively narrow hull and a deep bulb keel, a configuration optimized for stability, pointing ability, and speed, particularly upwind. As a one-design class, all Streamline boats are built to strict specifications, ensuring fair and competitive racing.

Sailing Performance and Handling

The Mader Streamline is engineered for exhilarating sailing performance, reflecting its heritage as a purebred racing machine. With a length overall of just under 23.5 feet, a light displacement of 1,312 pounds, and a generous sail area of 357 square feet, the boat is designed to be responsive and quick. Its narrow hull, deep bulb keel, and significant ballast of 573 pounds contribute to excellent stability and stiffness, allowing it to carry its sail plan effectively in a range of wind conditions. This design philosophy ensures that the Streamline can stand up to heavy gusts and maintain its course, crucial for competitive racing.

Anecdotal evidence from its use in high-ranking international match races suggests that the Streamline offers dynamic handling characteristics. The Judel/Vrolijk design prioritizes balance and maneuverability, allowing for precise control during tactical race situations. Its fractional sloop rig is typical for modern performance boats, offering flexibility in sail trim for optimal speed and pointing ability. The deep keel and single rudder provide ample grip on the water, translating into sharp turns and efficient upwind performance, confirming its status as a high-performance craft [2,.

Accommodations and Layout

Consistent with its design as an open, three-man racing keelboat, the Mader Streamline features a highly minimalist interior layout. The focus is entirely on sailing functionality rather than cruising amenities. As an "open" boat, it is designed with a clear, uncluttered cockpit and deck, providing ample space for a racing crew to maneuver and trim sails efficiently. There are no details available regarding extensive interior accommodations such as V-berths, a galley, or a enclosed head, which are typically absent in dedicated race boats of this size. The absence of a specified maximum headroom in its specifications further underscores its utilitarian, race-focused design. The interior, if any, would likely consist of basic storage for sails and safety gear, leaving the maximum volume open for crew movement and weight placement during races.