F 18 (Iw-Varvet) Information, Review, Specs

History and Design

The F 18 began its production run in 1962 under the IW-Varvet name. IW-Varvet, situated on Sweden's boat-building island of Orust, had by this time established itself as a producer of quality fiberglass yachts. While many of IW-Varvet's iconic models benefited from collaborations with Sparkman & Stephens, the F 18 was notably designed by Ivar Åkesson.

A significant evolution in the boat's history occurred in the late 1960s when the F 18 received a new deck and interior, leading to its renaming as the IW-23. The design's popularity also extended beyond Sweden, as it was later built in Norway under the name Westcapp 23. This lineage highlights a design that saw refinement and adoption across different builders, speaking to its fundamental soundness.

Sailing Performance and Handling

With a displacement of 3,307 lbs and a waterline length of 19.68 ft, the F 18 is categorized as a lighter displacement sailboat, suggesting a design intended for more sprightly performance than a heavy cruiser. Its displacement-to-length ratio of approximately 193.7 further underscores this lighter-weight characteristic, indicating a boat that can be responsive in varying conditions.

The F 18 boasts a ballast-to-displacement ratio of 0.42, which is a relatively high figure. This high ratio points to excellent initial stiffness and good stability, allowing the boat to stand up well to a breeze and providing a reassuring motion in a seaway. While its sail area to displacement ratio of 14.60 might suggest it is slightly underpowered in very light air, this is balanced by its stability, meaning it can carry its sail plan effectively as the wind picks up. Owners have described the IW 23, the evolved version of the F 18, as "easy to sail" and capable of cruising well. It is noted for crossing well and feeling "alive" in winds of 10 knots and above, with a balanced helm.

Accommodations and Layout

Information from reviews of the IW-23, the later iteration of the F 18, indicates a functional interior layout. The cabin typically features a salon area and a forepeak, which are separated, likely offering a degree of privacy for the V-berth. The galley area is usually found in the forward part of the salon, equipped with a sink and space for cooking. Given its overall length of 22.47 feet and relatively narrow beam of 7.38 feet, the interior accommodations would be considered compact but practical for its class, geared towards weekend trips or short coastal cruises. While specific headroom figures are not consistently available, the design prioritizes efficient use of space within its modest dimensions.

Owner's Perspectives

Owners of the IW-23, which shares its design lineage with the F 18, generally hold positive views of the boat. It is often described as "easy to sail" and good for tacking. Many are "very positively surprised" by its performance. The boat is considered capable of making good progress, especially when the wind is up, with some noting that it "comes alive" in 10-15 knot winds. The F 18 is generally seen as a stable and stiff boat with good righting capability. While generally praised for its handling, some owners have noted that it can be "heavy to cross with" or experience weather helm, which could be related to sail trim or rig tension. The robust construction, a hallmark of IW-Varvet, contributes to its enduring appeal among those who value classic lines and proven capability.