1974 Hallberg Rassy Monsun 31

Galveston, Texas, United States
$24,000 USD
Condition: excellent

Nora Marie completed a total refit in 2017. She was refit to the highest standards for the purpose of long distance cruising. All systems were selected for rugged simplicity and self-servicing.

The Hallberg-Rassy Monsun 31 is renowned as a sea kindly, stout cruising boat with multiple circumnavigations.

TYPE: Hallberg-Rassy
MODEL: Monsun 31
CLASS: Sloop-Rigged
DESIGNER: Olle Enderlein
HULL COLOR: Sea Shell Green
LOA: 309
LWL: 249
BEAM: 95
BALLAST: 4200 lbs.

Bow pulpit
Stern pulpit
New Dyneema lifelines with pelican hooks at stern pulpit
Bow cleats
New stainless steel Mid-ship cleats
Stern cleats
New Primary anchor - 33 lbs. Rocna Plow with 180 3/8 galvanized chain
Secondary anchor - 44 lbs. Claw Plow Anchor
Spare anchor - Danforth 25 lbs Hinged-Plow Anchor
New Lofrans Royal Manual Windlass
New Self-Tailing Lewmar Winches
New Genoa Tracks
Re-painted deck - Awlgrip Oyster White
Installed & Bedded all deck hardware (sika295 and butyl)
New Custom Stem Piece (parallel anchor rollers, spinnaker & solent tacks)


New Garmin GPSmap 547xs
New Standard Horizon matrix AIS/GPS
New Mid-Nite Solar Charge Controller
New flexible solar panel
New VHF antenna
New depth sounder - Garmin P79
New steaming/foredeck light
New mast top tricolor navigation/running light assembly
New (3) group 24 AGM batteries (2 house and 1 dedicated start)

New Solent Stay
New strong track for mainsail
New storm track for trysail
New PTR lazy jacks
New Schaeffer 2100 furling
New standing rigging
New Selden boom
New running rigging
Anodized Aluminum Mast
New Storm Trysail Track added to Mast
New Selden Boom
New Nylon Yacht Braid Running Rigging
New 1x19 Stainless Steel Wire Standing Rigging
New Chrome Plated Bronze Open Turnbuckles
Rebuilt (electropolished) Stainless Steel Chain Plates

FUEL TANK: 50 Gallon FRP Hull-Integral Tank (pressure washed during refit)
All New Fuel Hoses
WATER TANKs: (3) New Plastic Tanks with total capacity of 75 Gallons
(3) New Bronze Hand Pumps
WASTE: New Air-Head Composting Toilet

ENGINE: New Beta Marine B-20 (20 HP @ 3600 RPM)
TRANSMISSION: TMC60 A Twin Disc Technodrive
PROPELLER: New Bronze 3-Blade, 15R10
SHAFT: New 1 Stainless Steel
SHAFT SEAL: New PYI PSS Dripless System
New Kobelt control head
New dual Racor 500 fuel filters
New Vetus muffler
Added fan, blower, and sound-down to engine space
Repainted engine space
New seacock to engine exhaust for offshore sailing
Filled grease cup for rudder stuffing box
Renewed cutlass bearing

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About the Hallberg-Rassy 31

German Frers
# Built
Hull Type
Fin w/spade rudder
Also Known As


Length Overall
31 7 / 9.6 m
Waterline Length
27 0 / 8.3 m
10 10 / 3.3 m
4 7 / 1.4 m 5 6 / 1.7 m
9,920 lbs / 4,500 kg
4,410 lbs / 2,000 kg (Lead)

Rig and Sails

Fractional Sloop
Reported Sail Area
606 ft2 / 56.3 m2
Total Sail Area
Sail Area
Mast Height
48 11 / 14.9 m
Sail Area
Forestay Length

Auxilary Power

Volvo Penta
Fuel Type
Fuel Capacity
16 gal / 61 l


Water Capacity
52 gal / 197 l
Holding Tank Capacity


Hull Speed
6.75 knots
Sail Area/Displacement
good performance
stiffer, more powerful
Comfort Ratio
coastal cruiser
Capsize Screening
better suited for coastal cruising


From BlueWaterBoats.org:

The Hallberg-Rassy 31, designed by German Frers and introduced in 1992, has been one of Hallberg-Rassy’s most popular models for many years. The yacht strikes a harmonious balance between comfort, safety and performance as a go-anywhere cruiser on the smaller end of the offshore sailing spectrum.

The yacht enjoyed positive reviews in the press upon her introduction and through the years earned praise from hers owners. Bob Perry, one of the great names in cruising design, wrote in Sailing Magazine, “Frers has given us a nice boat. I like just about everything about this design, from its high cockpit seatbacks to the fractional rig.” While closer to home, Swedish yachting magazine Båtnytt wrote, “Extremely spacious, light and inviting interior. The sailing and sea-going qualities are in a class of its own.”

Hallberg-Rassy’s change to Frers as designer has given this 31 footer a much needed boost of speed over her predecessors, for a cruiser her speed through water and close windedness is excellent in most sea conditions. However she’s known to struggle in light winds and also short choppy seas. The boat is well balanced is easy to single hand with all her control lines lead aft to the cockpit.

Under heavy conditions the boat is sea-kindly and has safe docile characteristics, as one owner put commented, “it always feels nice arriving in carpet slippers and smoking jacket rather than a drenched oily.”

The design pairs a beamy medium displacement hull with an efficient fin keel and a balanced spade rudder. Her sweeping sheerline belies a low freeboard, which helps keeps her windage low, while interior headroom is achieved by a higher cabin-top. The low freeboard arrangement also manages to keep the crew dry and well protected by use of a high cockpit wall and Hallberg-Rassy’s trademark fixed-windscreen.

The rig also continues the theme of cruising practicalities and performance. Frers has opted for a fractional rig, a configuration more often seen in racers, but is devoid of the extra hassles of running backstays to support the head of the genoa, instead relying on its masthead backstay and an aft-swept spreader to provide forestay tension control.

Belowdecks is a layout that feels light and spacious with mahogany joinery that has become a Hallberg-Rassy trademark. There are two spacious double cabins, one forward and one aft, and a large head and shower compartment aft. The saloon is of a good size and there is ample space in the galley and the chart tables is full sized. Going against the “full-sized” theme, owners comment that the berths are quite small, best suited to those under 5′ 10″ in height. The cockpit is comfortable, well protected and can accommodate a decent crew without issues. Part of the starboard seat lifts up to give access to a very generous stowage area.

All put together the Hallberg-Rassy 31 is a solid cruising yacht featuring the popular qualities of larger Hallberg-Rassys in a small package. She can cope safely in all weather conditions, practical for cruising life, and easy to sail. With an extremely long production run from 1993 to 2009, prices can vary dramatically depending on age and wear and tear.


The Hallberg-Rassy 31 continues from a very popular line of 31-footers. The Swedish yacht maker Hallberg-Rassy has alway distinguished itself for building quality yachts on the high end of the market, many noting it as the Mercedes Benz of boatbuilders.

Not long after 1972 when Harry Hallberg and Christoph Rassy merged their boatyard operations to become Hallberg-Rassy, the company’s Olle Enderlein designed Monsun 31 quickly became the company’s most popular model, in fact it sold 904 boats between 1974-1982 making it the all-time best seller. This model was complemented and eventually superseded by the 312, a more modern design by Christoph Rassy and Olle Enderlein which saw the introduction of a fin keel. The 312 was also very popular with 690 boats built between the years 1979-1993.

The Hallberg-Rassy 31 was introduced in 1992 to replace the long running 312, keeping many of her traits but with a lighter beamier hull and refinements throughout. This time the design was by German Frers who has been the exclusive designer for Hallberg-Rassy since 1989, his designs have added much needed performance to the Hallberg-Rassy lineup.

By 2006, the design was updated with a MkII version, the changes were minor, the most significant is a rig change to a lighter twin-spreader mast and an engine update, there were also many improvements to the interior furnishings. Like her forebears Hallberg-Rassy 31 enjoyed a long production run, lasting 18 years and 356 boats, before being replaced by the Hallberg-Rassy 310 in last 2009 – a slightly smaller and lighter sailboat.

» The official Halberg-Rassy website, information on the Hallberg-Rasssy 31 MkI and MkII
» Bob Perry’s design review of the Hallberg-Rassy 31, first published in Sailing Magazine, 1993

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