RJ 85 Information, Review, Specs

RJ 85 Drawing
Make
RJ
Model
85
Builder
Designer
Rolf Jacobssen
Number Built
500
Production Year(s)
1969 - 1977

The RJ 85 is a quintessential Scandinavian classic, designed in 1969 by Rolf Magnusson to bridge the gap between the traditional International Folkboat and the evolving requirements of modern offshore racing. Characterized by its long, graceful lines, narrow beam, and exceptionally low freeboard, the RJ 85 achieved cult status in Sweden and Denmark throughout the 1970s. Roughly 500 units were produced, many of which were delivered as "self-build" kits, meaning that while the hull and deck were professionally molded, the interior finishing and rigging details can vary significantly from one hull to the next. The design emphasizes aesthetic elegance and windward performance over interior volume, making it a "sailor's boat" in the purest sense.

Sailing Performance & Handling

The RJ 85 is renowned for its balanced and predictable handling, behaving much like a larger, more modernized version of the S-keeled classics of the mid-20th century. With a ballast ratio of nearly 50%—the lead keel weighs approximately 1,050 kg against a total displacement of 2,150 kg—the boat is remarkably stiff and carries its sail well even as the breeze freshens. According to technical insights provided by the Svenska RJ85-förbundet, the boat’s narrow 2.05-meter beam and deep-V sections allow it to slice through choppy water with minimal slamming, a trait often referred to as "sea-kindliness."

Under sail, the RJ 85 tracks exceptionally well, requiring little effort on the tiller once the sails are trimmed. However, its low freeboard and slim profile make it a "wet" boat; in heavy weather, spray frequently clears the bow and finds its way into the cockpit. The boat’s performance is most notable when beating to windward, where its high-aspect rig and slim hull allow it to point higher than many modern cruisers of similar length. While it lacks the surfing capabilities of modern flat-bottomed designs, it maintains a respectable hull speed and remains controllable even when over-canvased.

Interior Comfort & Variations

The interior of the RJ 85 is modest, reflecting its heritage as a performance-oriented cruiser. Headroom is the primary compromise, measuring approximately 1.45 to 1.50 meters, which necessitates a "sitting-only" lifestyle below decks. The standard layout features a V-berth in the bow, followed by two longitudinal settees in the main cabin that double as sea berths. Because many RJ 85s were finished by their original owners, the quality of joinery and the specific layout of the galley and navigation station can differ wildly.

Some variants feature a "tall rig" or modified keel depths, but the most significant "sibling" in terms of design lineage is the RJ 140, a much larger but rarer offshore cruiser that shares Magnusson’s signature aesthetic. Within the RJ 85 fleet, some owners have opted to remove the original internal bulkheads to create a more open, "daysailer" feel, while others have outfitted them with elaborate teak cabinetry for long-distance coastal cruising. Despite the cramped quarters, the boat’s interior is often praised for its cozy, secure feeling while at sea.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the RJ 85 with a focus on the quality of the original owner-completion. Because these were kit boats, the following areas require rigorous inspection:

  • Deck Core Integrity: Many RJ 85s used balsa or foam coring in the deck. Over decades, poorly sealed hardware mountings can lead to water ingress and delamination. Soft spots around the mast step or chainplates are common red flags.
  • Mast Step Compression: The RJ 85 features a deck-stepped mast. On older models, the support structure beneath the deck may settle or compress, leading to rig tension issues and a visible sag in the deck profile.
  • Rudder Bushings: The transom-hung or semi-balanced rudders used on these models often develop play in the bushings or pintles. While a relatively simple fix, it can significantly impact the boat's signature "fingertip" helm feel.
  • Keel Bolts: While the lead keel is robust, the bolts and the glass-reinforced plastic (GRP) around the keel sump should be inspected for signs of "the smile"—a crack at the leading edge of the keel-to-hull joint that indicates movement or past groundings.

Community & Resources

The RJ 85 maintains a dedicated following, particularly in Northern Europe. The Svenska RJ85-förbundet serves as the primary repository for technical drawings, trim guides, and historical data. This association remains active, organizing class championships and maintaining a registry of hulls to preserve the design's racing legacy.

The Verdict

The RJ 85 is an elegant, affordable entry point for sailors who prioritize sailing sensations and classic aesthetics over standing headroom and modern amenities. It is a robust, ocean-capable design that continues to hold its value among purists.

Pros:

  • Exceptional Aesthetics: One of the most beautiful "S-hull" designs of its era.
  • Stiff and Secure: High ballast ratio ensures stability in heavy weather.
  • Technical Performance: Excellent windward ability and tracking.
  • Affordability: Generally low entry price for a boat capable of serious coastal passage-making.

Cons:

  • Limited Headroom: No standing room, which may deter long-term cruising for taller sailors.
  • Wet Ride: Low freeboard leads to a damp cockpit in anything over 15 knots of wind.
  • Build Variance: Quality depends heavily on how the original owner finished the kit.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
2778 lbs (Lead)
Displacement
4740 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
28.05 ft
Waterline Length (LWL)
21.98 ft
Beam
6.73 ft
Draft
4.13 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
28.05 ft
E (Main Foot)
6.73 ft
I (Foretriangle Height)
27.39 ft
J (Foretriangle Base)
9.35 ft
Forestay Length (est)
28.94 ft
Sail Area
222 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
12.59
Ballast / Displacement Ratio
58.61
Displacement / Length Ratio (D/L) Ratio
199.27
Comfort Ratio
24.27
Capsize Screening Formula
1.6
Hull Speed
6.28 kn