Loa 17 — Information, Review, Specs

Sidney Blinder·1961·~399 hulls·Sidney Company
Approximate drawing

Hover a measurement to read its value

Hull type
Monohull · centerboard
Rig
Fractional Sloop
LOA
17' · 5.18 m
Displ.
700 lbs · 318 kg
First year
1961

The Loa 17 is a seminal figure in Scandinavian fiberglass boatbuilding, designed by the late Børge Quorning—founder of the renowned Quorning Boats (now famous for the Dragonfly trimarans). Launched in the late 1950s and popularized throughout the 1960s, the Loa 17 was envisioned as a robust, safe, and accessible dayboat for Danish families. Measuring 5.2 meters with a beam of roughly 2 meters, it transitioned the region's sailing culture from traditional wooden hulls to the thenemerging world of glassreinforced plastic (GRP). While its lines evoke the aesthetics of a classic Nordic doubleender, it features a transom stern and a ballasted centerboard or fixed keel, depending on the specific production run. According to the Dragonfly Boats Heritage page, the Loa 17 was a foundational success for the Quorning yard, selling over 500 units and establishing the manufacturer's reputation for build quality before they shifted focus toward multihulls.

Measurements

Dimensions 01

LOA
17 ft
LWL
-
Beam
-
Draft
4.5 ft
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Fiberglass
Hull type
Monohull
Keel type
Centerboard
Rudder
1× Outboard
Ballast
100 lbs (Steel)
Displacement
700 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Fractional Sloop
P · main luff
-
E · main foot
-
I · fore ht.
-
J · fore base
-
Forestay (est)
-
Sail area
150 sqft

Calculations 04

SA/D ratio
30.44
Ballast/Disp.
14.29
D/L ratio
Comfort ratio
Capsize screening
Hull speed

Sailing Performance & Handling

The Loa 17 is characterized by exceptional stability and predictable handling, making it a preferred choice for sail training in Northern Europe. Unlike lighter, modern racing dinghies, the Loa 17 possesses a significant displacement-to-length ratio that allows it to "sit" in the water rather than bounce over it, providing a dry ride even in the choppy conditions typical of the Baltic or North Sea.

Under sail, the boat is generally rigged as a fractional sloop. It tracks remarkably well for its size due to the hull’s deep V-shape forward, which prevents the "skating" sensation common in flatter-bottomed daysailers. Owner anecdotes often highlight the boat's ability to be sailed single-handedly, thanks to a conservative sail plan that does not easily overpower the hull. While it is not a high-performance planing craft, it maintains momentum through lulls and handles gusts with a gentle heel rather than an abrupt "trip" over its rail. Because it was often built with a heavy iron centerboard, the righting moment is substantial for a 17-foot vessel, offering a level of security that allows for coastal day-tripping rather than being confined to protected lakes.

Known Issues & Buyer’s Checklist

When inspecting a vintage Loa 17, the primary concern is the integrity of the centerboard trunk. As many of these vessels are over 50 years old, the junction where the trunk meets the hull can develop stress cracks or leaks. Furthermore, because the centerboards were often made of cast iron, corrosion can cause the board to swell, potentially jamming it inside the trunk.

Prospective buyers should also examine the deck-to-hull joint. On earlier models, this joint was often mechanically fastened and covered with a rubber or plastic rub rail; over time, the sealant can degrade, leading to water ingress during heavy heeling. Since these boats frequently featured wooden thwarts and trim (often teak or mahogany), check for soft spots in the wood where it meets the fiberglass, as rot can migrate into any non-sealed core material if the boat was modified by previous owners. Lastly, verify the condition of the rudder gudgeons and pintles; the Loa 17's heavy rudder puts significant strain on these fittings, and wallowed-out holes are a common maintenance item.

Community & Resources

The legacy of the Loa 17 is primarily preserved through Danish and Scandinavian sailing clubs, where the boat is still used for youth training and club racing. The most significant technical resource remains the heritage department of Quorning Boats, which maintains historical records of the model's development. While there is no longer a dedicated international class association, the boat is a frequent subject of discussion on Danish maritime heritage forums, where enthusiasts share sail plans and restoration tips.

The Verdict

The Loa 17 is a "little ship" in the truest sense, offering a level of seaworthiness and historical charm rarely found in modern 17-footers. It is an ideal vessel for those who appreciate the craftsmanship of the early fiberglass era and require a safe, forgiving platform for family outings.

Pros:

  • Exceptional Stability: High ballast ratio for its size makes it very difficult to capsize.
  • Build Quality: Overbuilt fiberglass laminates from the early Quorning era are remarkably durable.
  • Aesthetic Appeal: Classic lines and wood accents provide a "pocket yacht" feel rather than a "plastic toy" appearance.

Cons:

  • Weight: Heavier than modern dinghies, making it more difficult to launch and retrieve without a winch-equipped trailer.
  • Age-Related Maintenance: Buyers must be prepared to manage iron corrosion and potential fiberglass crazing.
  • Speed: Lacks the exhilarating speed of modern asymmetric spinnaker boats or lightweight planing hulls.

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