Jura 35 MS Information, Review, Specs

Make
Jura
Model
35 MS
Builder
D.M. Russell Marine
Designer
G. L. Watson & Co. Ltd.
Number Built
Production Year(s)
1975 - ??

The Jura 35 MS (Motorsailer) is a robust, heavy-displacement cruiser that embodies the traditional British philosophy of "go-anywhere" seaworthiness. Designed by the esteemed naval architecture firm G.L. Watson & Co., the Jura 35 was primarily constructed by Jura Marine in Scotland during the 1970s and 1980s. Built to withstand the punishing conditions of the North Sea and the Western Isles, the vessel is a true 50/50 motorsailer, offering a balance between a powerful auxiliary engine and a steadying ketch or sloop rig. Its design heritage shares DNA with other legendary Watson-designed heavy cruisers, prioritizing a protected helm and a high volume-to-length ratio that makes it an ideal candidate for liveaboard cruising or high-latitude exploration.

Sailing Performance & Handling

The sailing characteristics of the Jura 35 MS are defined by its high displacement and a long keel with a protected rudder. While it is not a light-air performer—often requiring the engine to make meaningful progress in winds under 12 knots—it excels when the weather deteriorates. The hull is exceptionally "stiff," a result of a high ballast-to-displacement ratio, which ensures a comfortable, upright motion that minimizes crew fatigue during long passages.

Under sail, the ketch rig (the most common configuration for this model) allows for a versatile range of sail combinations. In heavy weather, the Jura 35 tracks with remarkable precision, a trait inherited from its G.L. Watson pedigree. Owners often report that the boat feels most at home "heaving-to" or power-sailing with the mizzen and a furling genoa to provide stabilization. The hydraulic steering, while lacking the tactile feedback of a racing yacht, is reliable and well-suited for the internal wheelhouse position, allowing the helmsman to navigate in a climate-controlled environment while maintaining visibility through toughened glass windscreens.

Interior Comfort & Variations

The Jura 35 MS was designed with a focus on interior volume and long-term habitation. The most distinctive feature is the raised pilothouse or wheelhouse, which serves as the social and navigational hub of the vessel. This area typically includes a comprehensive helm station to starboard and a dinette or seating area that provides panoramic views of the surroundings—a luxury rarely found on standard sailing monohulls of this era.

Below deck, the layout varies depending on whether the boat was commissioned as an "Aft Cabin" or "Open Cockpit" version. The Aft Cabin variant provides a private master stateroom accessible from the main saloon, while the Open Cockpit version prioritizes a larger aft deck for fishing or lounging. The use of heavy teak or mahogany joinery is a hallmark of Jura Marine’s construction, creating a warm, traditional maritime aesthetic. The galley is usually located midships, designed to be functional even at sea, with deep sinks and ample storage. Headroom is generous throughout most of the vessel, often exceeding 6'3", which contributes to the open, airy feel of the living spaces.

Known Issues & Buyer’s Checklist

Prospective buyers of a Jura 35 MS should focus on the specific maintenance requirements of a vintage GRP motorsailer.

  • Osmosis and Hull Blistering: As with many British-built hulls from the 1970s, the Jura 35 can be prone to osmotic blistering. A thorough moisture meter test of the hull below the waterline is essential during survey.
  • Fuel and Water Tank Integrity: These vessels were often fitted with mild steel or galvanized tanks. Over decades, these are prone to internal corrosion. Inspect for "weeping" at the seams or signs of fuel contamination.
  • Window Seals: The large windows in the pilothouse are critical to the boat's appeal but can develop leaks as the original bedding compounds dry out. Check for water staining on the interior woodwork surrounding the glass.
  • Engine Service History: Because these are motorsailers, the engine (typically a Perkins or Leyland-Thornycroft) likely has high hours. Check the heat exchanger and exhaust elbow for scale buildup or corrosion.
  • Teak Deck Wear: If the model is equipped with original laid teak decks, check for thinning wood and failing caulking, as leaks can lead to core saturation in the sub-deck.

Community & Resources

While Jura Marine is no longer in active production, owners of these vessels often find technical support and historical documentation through the broader G.L. Watson design community. The G.L. Watson & Co. Archive remains the primary source for original plans and design specifications. Owners also frequently congregate in regional North Sea and Scottish cruising forums to share specific refit advice for the "Jura" and "Watson" ranges of motorsailers.

The Verdict

The Jura 35 MS is a "little ship" in every sense of the word, offering security and comfort that modern light-displacement yachts cannot match. It is a niche vessel designed for the sailor who values protection from the elements over outright speed.

Pros:

  • Exceptional seaworthiness and stability in heavy weather.
  • The pilothouse layout offers year-round cruising capability.
  • High-quality traditional craftsmanship and interior joinery.
  • Substantial storage and tankage for long-distance voyaging.

Cons:

  • Sluggish performance in light winds and poor pointing ability upwind.
  • Large turning circle and windage make docking challenging without a bow thruster.
  • High maintenance requirements for older hull systems and exterior woodwork.

Similar Sailboats

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Full
Rudder
1x Attached
Ballast
10000 lbs
Displacement
24000 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
34.5 ft
Waterline Length (LWL)
30.75 ft
Beam
13 ft
Draft
4.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Ketch
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
-

Calculations

Sail Area / Displacement (SA/D) Ratio
Ballast / Displacement Ratio
41.67
Displacement / Length Ratio (D/L) Ratio
368.49
Comfort Ratio
38.22
Capsize Screening Formula
1.8
Hull Speed
7.43 kn