The Viking, designed by the legendary Norwegian naval architect Bjarne Aas in 1947, represents a refined evolution of the racing-focused International One Design (IOD). Conceived in the post-war era as a "national class" for Norway, the Viking was intended to bridge the gap between a pure racing machine and a capable coastal cruiser. While it shares the iconic aesthetic of the IOD—characterized by long, elegant overhangs, a narrow beam, and a deep-draught full keel—the Viking was given slightly more volume and a dedicated trunk cabin to accommodate overnighting. Most original examples were meticulously crafted in Fredrikstad, Norway, featuring mahogany planking on oak frames, though a later iteration of the design was produced in GRP (glass-reinforced plastic) by Abbott Boats in Canada.
Aas Viking Information, Review, Specs

- Make
- Aas
- Model
- Viking
- Builder
- Bjarne Aas
- Designer
- Bjarne Aas
- Number Built
- Production Year(s)
- 1947 - ??
Sailing Performance & Handling
The Aas Viking is widely regarded as a "sailor’s sailboat," offering a level of tactile feedback and upwind efficiency rarely found in modern cruiser-racers. Its handling characteristics are deeply rooted in its high displacement-to-length ratio and its significant ballast ratio, which allow the vessel to stand up to its canvas in stiff coastal breezes. Owners often describe the Viking as "weatherly," a term used to highlight its ability to point high into the wind with minimal leeway. Because the design features a deep-draught full keel with an integrated rudder, it tracks exceptionally well, requiring little effort on the tiller once the sails are properly balanced.
In heavy air, the Viking behaves with a predictable, sea-kindly motion, slicing through chop rather than pounding over it. However, the narrow beam that makes it so fast upwind also results in a relatively "wet" ride in high seas, as the low freeboard allows spray to reach the cockpit. Unlike modern fin-keel boats, the Viking’s turning radius is wide, making tight maneuvers in a crowded marina a task that requires foresight and often a bit of momentum.
Interior Comfort & Variations
The interior of the Viking is unapologetically traditional and somewhat spartan, reflecting its heritage as a weekend cruiser rather than a liveaboard. The standard layout features a compact "V-berth" forward and two longitudinal settees in the main cabin that double as berths. Headroom is limited due to the low-profile trunk cabin, which was designed to maintain the yacht's sleek silhouette. While the original wooden Norwegian builds often featured exquisite joinery and mahogany finishes, the focus remained on functionality for a crew of two to four during a regatta or a short coastal hop.
There are two primary variations of the Viking hull. The "Original Norwegian" version is almost exclusively wooden and is prized by collectors for its historical authenticity. The second variant is the "Abbott Viking," produced by Abbott Boats. While the Abbott version utilized fiberglass for the hull and deck to reduce maintenance, it retained the original Bjarne Aas lines. These GRP siblings are often found in North American waters, particularly in the Great Lakes, and offer a more accessible entry point for sailors who admire the Aas aesthetic but wish to avoid the intensive maintenance schedule of a wooden hull.
Popular Mentions & Media
The Aas Viking enjoys a storied reputation within the classic yachting community, frequently appearing in retrospectives of mid-century Scandinavian design. Bjarne Aas’s contributions to naval architecture are well-documented by the International One Design World Class Association, which notes the Viking’s role as the "cruising cousin" to the IOD. The boat is a perennial favorite at classic boat regattas like the Risør Wooden Boat Festival in Norway, where restored Vikings are often showcased as pinnacles of 20th-century craftsmanship.
Known Issues & Buyer’s Checklist
Prospective buyers of an Aas Viking must approach the vessel with a focus on its specific construction material. For wooden examples, the primary concern is "iron sickness" or the degradation of the wood around original iron fastenings.
- Keel Bolts and Floors: On older wooden models, the keel bolts and the timber floors they pass through should be inspected for corrosion and rot. If the boat has been neglected, the joint between the ballast keel and the deadwood may show signs of weeping.
- Deck Leaks: The transition between the wooden deck and the trunk cabin is a common source of freshwater ingress. In GRP models (Abbott Viking), buyers should check for delamination or soft spots in the balsa-cored decks.
- Mast Step: The mast is deck-stepped on many models, and the structural compression post or the deck beams beneath it can settle over decades of high rig tension.
- Rudder Gudgeons: Given the age of these vessels, the underwater hardware, specifically the heavy bronze or iron gudgeons holding the rudder to the sternpost, should be checked for excessive play or galvanic corrosion.
Community & Resources
The Aas Viking is supported by a niche but dedicated group of enthusiasts. In Norway, the Royal Norwegian Yacht Club (KNS) maintains historical ties to the class. Technical information and restoration advice are frequently shared through the Classic Boat Magazine archives, which has featured Bjarne Aas designs in multiple technical retrospectives regarding the preservation of 20th-century wooden sloops.
The Verdict
The Aas Viking is a connoisseur’s yacht, offering a sublime sailing experience for those who value heritage and aesthetics over interior volume and modern amenities.
Pros:
- Exquisite, timeless lines that draw attention in any harbor.
- Superb upwind performance and tracking stability.
- High-quality craftsmanship found in the original Norwegian builds.
- Active community of classic yacht enthusiasts.
Cons:
- Limited interior headroom and storage space for long-term cruising.
- Wooden variants require significant annual maintenance and specialized shipwright skills.
- The narrow beam and low freeboard result in a "wet" sailing experience in heavy weather.
- Challenging to maneuver in reverse due to the full keel and traditional rudder configuration.
Measurements
Construction & Hull
- Construction Material
- Wood
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x —
- Ballast
- 3748 lbs (Lead)
- Displacement
- 6283 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 31.17 ft
- Waterline Length (LWL)
- 20.67 ft
- Beam
- 6.59 ft
- Draft
- 4.76 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- 32.81 ft
- E (Main Foot)
- 13.29 ft
- I (Foretriangle Height)
- 24.11 ft
- J (Foretriangle Base)
- 7.22 ft
- Forestay Length (est)
- 25.17 ft
- Sail Area
- 323 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 15.18
- Ballast / Displacement Ratio
- 59.65
- Displacement / Length Ratio (D/L) Ratio
- 317.61
- Comfort Ratio
- 33.05
- Capsize Screening Formula
- 1.43
- Hull Speed
- 6.09 kn