Design and Construction
The Storfidra carries a solid fiberglass hull and deck, with a long keel of lead and a transom-hung rudder. At a displacement of about 6,834 pounds with 2,866 pounds of lead ballast, the boat qualifies as a heavy cruiser by displacement-length ratio (346), a figure that places it among the heavier end of similar designs — only 8% of comparable sailboats are heavier. The ballast ratio of 42% is higher than 62% of similar designs, and the length-beam ratio of 3.17 makes her slimmer than 73% of her peers. These are not sportboat numbers; they describe a narrow, deeply ballasted hull meant to track and carry load rather than plane. The capsize screening value of 1.66 and a Motion Comfort Ratio of 30.6 — more comfortable than 99% of similar designs — reinforce the picture of a stable, easy-motion coastal and offshore-capable small boat.
Rig and Handling
The Storfidra is a masthead sloop with a reference sail area of 307 square feet for mainsail and jib. Her sail-area-to-displacement ratio with the ISO reference sail is 13.7, rising to 16.1 with a 135% genoa, and the design carries more rig than only 27% of similar sailboats, meaning she is slightly underrigged for her displacement. In light wind she is faster than 21% of comparable designs, and her theoretical hull speed is 6.1 knots with a wetted surface of about 182 square feet. Under the optional Volvo Penta MD2 diesel at 17 horsepower, maximum speed is 5.0 knots. The standing and running rigging follow period masthead proportions: halyards of 22.2 meters at 8 mm, sheets around 7.6 to 19 meters at 10 mm, and control lines such as the cunningham and kicking strap at 8 mm. The immersion rate of about 567 pounds per inch tells you how steadily she sits as stores and crew are added.
Accommodations
Below, the Storfidra provides four berths and an above-average headroom for a boat of this length, a notable trick given the 7.87-foot beam. Fresh water is carried at 40 liters (10 US gallons) and the fuel tank matches that at 40 liters of diesel. The narrow beam and long keel trade interior volume for sea-kindliness, yet the layout delivers practical sleeping space and the tankage to support short cruises without constant jerry-can management.
Known Issues
The Storfidra shows no structural defects, osmotic hull problems, or systemic rig failures in service. What the design profile establishes — slightly underrigged, heavy, narrow — shapes expectations rather than repairs. The truncated performance comparison notes the Relative Speed Performance value of 4, faster than 4% of similar designs, which simply confirms the Storfidra was never built to win windward races.
Refits and Ownership
Ownership centers on the Volvo Penta MD2 inboard, a 12 kW diesel that remains serviceable through marine networks familiar with period Scandinavian installs. The solid fiberglass construction means no core moisture surveys are required in the manner of balsa-cored contemporaries, and the lead long keel is a single casting rather than a bolt-on fin assembly. A buyer maintaining one should plan around period halyard diameters and sheet lengths if renewing running rigging, and expect the comfort-oriented hull to reward careful loading within the 567 pounds-per-inch immersion limit.
The Verdict
The Storfidra 25 is a traditional long-keel cruiser that trades outright speed for motion comfort and ballast security. She is a sailor's boat — narrow, heavy, and quietly capable — best suited to those who measure a design by how it behaves in a chop rather than on a rating certificate.
Pros
- Lead long keel and 42% ballast ratio deliver high stability for the size
- Motion Comfort Ratio exceeds 99% of similar designs
- Solid fiberglass hull and deck avoid core-rot surveys
- Above-average headroom with four berths in a 25-foot hull
Cons
- Slightly underrigged; light-air performance behind 79% of similar designs
- Relative Speed Performance places her behind 96% of peers on pure pace
- Narrow beam limits interior volume versus beamier modern cruisers
