S/Y NIXE is currently in Madeira / Porto Santo and will be sailed back to Lagos (Portugal) in March 2026, as soon as the weather permits. In our view, Lagos is the perfect location to take on your new boat: The marina is well situated with an active and supportive sailing community, there is one of the biggest boatyards in the region with a huge chandlery and flights to nearby Faro are cheap from all over Europe. It is, also, the ideal starting point for a sailing journey, either going North to Scandinavia or the British Isles, going East to the Mediterranean or going South-West to the Canary Islands.
The Monsun 31 is known for its outstanding seaworthiness and excellent quality of workmanship (check the official Hallberg-Rassy homepage for further details). With hull number 794 from 1980, S/Y NIXE is one of the latest in the series, incorporating numerous improvements while retaining its classiness.
Until 2024, the boat was sailed on Swiss lakes and was looked after by caring owners. We bought her in April 2024. A seaworthiness survey was commissioned and confirmed that the boat is in exceptionally good condition and approved for worldwide ocean sailing (Category A).
Between August 2024 – July 2025, the boat was subject to a complete refit. The refit was done to a high-quality standard using the best available materials and components. It includes, amongst other things, a freshly renovated teak deck, the newest iteration Volvo Penta D1-30F engine with very low hours, all new drive train and a new feathering prop, new electric installations, new through-hulls and seacocks in top grade bronze, new communication equipment, freshly replaced standing and running rigging and a full array of safety and emergency equipment.
The interior of the boat is magnificently built in mahogany with new upholstery in dark blue Alcantara and a beautiful plank floor in mahogany. Noteworthy is also the transformation of the former diesel tank into a fully enclosed blackwater tank system, where toilet, hand wash and galley water can be retained. This addition is essential if you would like to explore Scandinavia (e.g. the Swedish archipelago) or the Mediterranean and is not standard in boats of this age. Also, it avoids the well-known challenges of fouled diesel as the separately installed diesel tank is easily accessible and can be inspected at any time.
The boat is fitted with the industry’s best windvane self-steering system and a highly efficient hydrogenator, thereby giving fantastic autonomy for long-distance passage making, even short-handed.
During our ownership since 2024, this Monsun 31 has seen investments of more than 47.000 EUR (refit and new equipment – all accounted for with receipts, not including labour).
The result is an extremely capable, beautiful, functional and safe pocket-cruiser that retains a pure and simplistic sailing experience – isn’t this what it’s all about?
- Sailing under Swiss flag. After consultation with the Swiss Maritime Authorities, there may be the possibility to take over the Swiss Flag Certificate and Radio Call Sign / MMSI. For Swiss nationals, this poses a straight-forward opportunity to take on an affordable offshore sailboat under Swiss flag with only limited additional investments.
Deck:
- Complete refurbishment of teak deck: Removal of all deck fittings. Removal of old caulking. Planing and hand milling of joints where necessary. Recaulking with top-grade Pantera Sea Line 1000DC. Sanding and replacement of approx. 140 teak plugs with new A4 stainless deck screws. Re-bedding of all deck fittings with top-grade marine butyl sealant (Bed-IT). Remaining teak thickness is approx. 12mm throughout (2024)
- Refurbishment of anchor locker: Inside surface sanded and painted with two layers of Danboline. Stainless steel partition allows to securely store two Campingaz bottles. Lid hinges re-bedded with A4 stainless screws and equipped with flush-line storm-proof 90° rotating latch in A4 stainless steel. (2025)
- Replacement of main hatch with a new Gebo Ocean hatch. Bedded in white Tec7 and screws in Stainless Steel A4 (2025)
- Installation of certified strong points for safety jacklines: 4x M12 bolts with reinforced top and backing plate, deck sandwich reinforced with West Systems six10 Epoxy, attachment ring certified to UIAA Climbing standards. All in Stainless Steel 316L / A4 and with Wichard Reflective Jacklines installed (2025)
- 4x main cleats and 2x midship cleats removed, sandblasted and freshly anodized in natural grey. Re-bedded with Butyl tape, Torx bolts and large backing plates in A4 steel. Main cleat bolts upgraded to M8 instead of original 6mm bolts. The cleats are better than new, as they provide much better friction. (2025)
- Genoa tracks removed and freshly anodized. Re-bedded with butyl tape and new bolts in A4 steel. (2025)
- Installation of 2x main Genoa sheet blocks (Pfeiffer Marine) and 2x additional auxiliary blocks (Pfeiffer Marine) on Genoa track. (2025)
- 2x closed fairleads at the midship cleats (made to order by Allen Brothers). Extremely helpful when using spring lines during manoeuvring and berthing in marinas – and the Genoa sheets don’t get caught! (2025)
- Hand rail stanchions moved away from deck onto gunwale with new mounting plates. This gives much more space on side decks. Top wire of handrail increased in diameter. (year of adaption unknown)
- Stainless steel Wichard low-friction fairleads on rail stanchions for Genoa furler line (2025)
- Two WICHARD D-Bolts in cockpit to clip in (2025)
Rigging:
- Masthead and mast foot dissembled and inspected, several sheaves, bolts and washers replaced (2025)
- New Windex installed (2025)
- Seldén mast steps, all new and freshly installed with MONEL rivets (2025)
- 4x new angled U-bolts 15° for inner shrouds in Stainless Steel 316L / A4, with enlarged backing plate and double locking nuts (incl. one spare) (2025)
- 2x new chainplates for main shrouds in 8mm Stainless Steel 316L / A4 with large backing washers and M6 bolts in A4 Stainless Steel. Bolts bedded with Butyl tape, chainplates bedded with black Tec7 and closing plate in Stainless Steel 316L / A4 (2025)
- 1x new chainplate for backstay in 8mm Stainless Steel 316L / A4 with large backing washer and M6 bolts in A4 Stainless Steel, bedded with white Tec7 (2025)
- 4x new inner shrouds in Stainless Steel A4(2025)
- 2x new main shrouds in Stainless Steel A4 (2025)
- 1x new backstay in Stainless Steel A4 (2025)
- 1x new forestay in Stainless Steel A4 (runs within the existing Harken furling system) (2025)
- New halyards for main sail, genoa, spinnaker and storm jib (2025)
- All running rigging checked and 90% replaced with high quality lines by Lyros (2025 and ongoing)
- Completely new main sheet traveller: New removable post in Swiss oak, new traveller rail and cart (Pfeiffer Marine), new main sheet pulley system with 12mm Lyros sheet. Side brackets for removable post re-bedded with Butyl and Torx M6 bolts in Stainless Steel A4 (2025)
Engine:
- Installation of Volvo Penta D1-30F engine with currently 660 hours. Engine has Swiss papers and had only 340 hours in fresh water (Swiss lake) when installed. Mounting on existing engine bed with original Volvo Penta adapter brackets in the front and 16mm G10 GRP spacer plates in the rear (2025)
- New engine mounts (2025)
- New propeller shaft (2025)
- New propshaft coupling (2025)
- New dripless propshaft seal with carbon rotating ring (2025)
- New cutlass bearing with bronze tube (2025)
- New Propeller: SPW GP-80 four-bladed feathering prop with adjustable pitch (2025)
- Existing Vetus 45 litre diesel tank completely emptied and inspected, fitted with new gasket (2025)
- New Vetus water lock incl. new exhaust tubes – prevents the backflow of water to the engine in heavy seas (2025)
- New Vetus airvent valve incl. tubing (2025)
- New throttle and shift cables (2025)
- New tubing for cooling water cycle (2025)
- 4x 10 litre and 1x 20 litre diesel jerry cans for passage making (2025 and 2026)
- Adjustment of valve clearance (2026)
- New Solé air filter with adapter tube – unlike the original, this filter can be fully inspected and cleaned (2026)
- 3x new glow plugs (2026)
- Regular maintenance according to user manual (oil and filter change, fan belt, impeller etc)
- Spare parts kit and Volvo Penta operating /workshop manuals
Electric System:
- Completely new electric switchboard: 15mm Plywood plate with Okume toplayer, custom-fitted with stainless steel hinges, magnetic closure and high-gloss marine varnish. Philippi switchboard with automatic fuses for all appliances and Voltmeter for engine and domestic batteries. Automatic / manual bilge pump switch with alarm. Charging sockets for 2x USB C and 1x 12V charger (2025)
- New Optima AGM top-grade batteries for engine and domestic (2025)
- Sterling 110-230V worldwide landline charger (Pro Charge Ultra) with separate charging of engine and domestic batteries (2025)
- Sterling battery-to-battery charger (BB1240) with up to 40A charging of domestic battery via engine battery. Reverse-charging if domestic is fully charged by Hydrogenerator (2025)
- Sterling Zinc saver/ Galvanic Isolator (2025)
- Installation of Rule-Mate automatic bilge pump with removable bracket (2025)
- New main switch with emergency option (parallel circuit of both engine and domestic battery for emergency start of engine or prolonged use of e.g. VHF if domestic battery is flat) (2025)
- New cabling between engine, batteries, main switch, charging modules and switchboard – circuit overview scheme available (2025)
- Newest generation Hydrogenerator by Ocean Power GmbH (Germany). It is mounted on the swimming platform and can be safely operated (deployed or lifted) directly from the cockpit. If the boat moves more than 3.5-4 knots through the water, the hydrogenator reliably produces enough electricity to keep all batteries topped up with VHF, AIS transponder, Nav Lights and fridge being operated simultaneously. Spare carbon propeller and extra set of mounting brackets (2025)
- New LED navigation lights (starboard, port, stern, anchor, steaming) (2025)
- All lighting inside cabin has been upgraded to LED (2025)
- Navigation table light with special red LED bulb (2025)
Navigation and Communication:
- New AUTONAUTIC compass (SOLAS approved with certificate), with new lighting cable and socket (2025)
- New Raymarine depth sounder and speed log with Raymarine SeaTalk backbone. Installed with 8mm G10 GRP backing plates (2025)
- New Raymarine wind sensor at the mast top, linked to SeaTalk backbone (2025)
- New Raymarine 70is multi-function display installed in cockpit - showing Wind, Speed, Depth, AIS Targets, Position and SOG (2025)
- Installation of new VHF Radio ICOM 510E Evo with DSC and incorporated AIS receiver. Additional GPS antenna under cockpit coaming for extremely fast and reliable satellite pick-up (2025)
- Installation of ICOM Command Mic in Cockpit, next to Raymarine 70is display – allows to hear and use VHF with fully closed companionway (2025)
- New VHF aerial antenna at mast top incl. new mounting bracket. New co-axial cable with extra large cross-section for optimum range (2025)
- AIS Transponder EM Track 5W with SODTMA protocol and wireless function (transfers AIS targets to mobile phone or tablet) (2025)
- Raymarine tiller autopilot ST2000
- On request: Full set of up-to-date paper navigation charts: Danish Baltic sea, North Sea, Dutch and Belgian Coast, English Channel, Britanny, Galicia, Portugal, Canary Islands, Madeira, Azores
Plumbing / Sanitary Installation:
- Following were replaced with new Maestrini top-grade bronze through-hulls and Maestrini “Victoria” top-grade bronze seacocks (non-stick with 3 drain plugs for winterization), mounted with 8mm G10 GRP backing plates (Tec7 sealant) and Loctite thread sealant: Engine cooling water inlet (increased size to ½”), galley sink outlet 1”, toilet flush water inlet ½”, auxiliary water inlet ¾” (e.g. for watermaker), blackwater tank air vent ½” (2025)
- Toilet outlet: New top-grade Blakes 1 ½” flanged seacock, through bolted, with grease nipple for in-water servicing (2025)
- Completely new cockpit drains: 1 ½” Guidi Bronze through-hulls, fittings and bronze ball valves – installed by German boatyard (2025)
- New 3-way ball valve (chrome plated) under galley sink to switch between blackwater tank and main outlet (2025)
- New Jabsco 3-way valve for blackwater outlet (2025)
- New tubing for manual bilge pump, blackwater tank outlet, toilet flush intake, electric bilge pump, galley sink and cockpit drains (2025)
Ground tackling:
- Main anchor: Rocna Vulcan 12 Kg (galvanized steel, SHHP classified – super high holding power) (2025), 30 metres of galvanised 8mm chain and 28 metres of 16mm anchor line (all in excellent condition)
- Auxiliary buoy (orange) and 10m tripline (2025)
- Backup anchor: Fortress FX-11 (aluminium) with 30 metres of 12mm anchor line (10m of with lead core) (anchor line new 2025)
Safety Equipment:
- Liferaft Plastimo TransOcean, 4 persons, 24+ (with food and water rations and additional emergency flares etc), Plastimo mounting bracket in stainless steel 316 with quick release (2024)
- 4x Red hand flares, 4x Red parachute flares, 2x Orange floating smoke signals (2025)
- 1x pressurized fog horn (2025)
- 1x manual fog horn
- 1x Horseshoe-buoy with Sirius Lithium SOLAS-approved salt-water light (2025)
- 1x KADEMATIC LW30 throwing pouch with 30m floating line (2025)
- Separate pulley system (handy billy) for recovery of unconscious person, with adaptor for boat hook
- 1x Fire extinguisher (2 litre Foam, 2025), 1x Fire extinguisher (2 Kg Powder), 1x Fire extinguisher (pyrotechnic, for engine room Mod. SPITA FireFighter, 2025), 1x Fire Blanket
- LED Light Cannon Mod. 1852 with rechargeable Lithium Battery (2025)
- Waterproof diving lamp LED (2025)
- Wooden bungs and rubber hammer (2025)
- Leak Hero emergency paste (2024)
- Drogue (2025)
- Ocean Signal RescueME EPIRB3 Emergency Beacon (2025)
- ICOM IC-M25 EURO Evo handheld VHF (waterproof, USB-C charging) (2025)
- GLORIA Carbon-Monoxide Detector with 10 years Lithium battery (2025)
Sails:
- Genoa made by Elvstrøm with Hydra Net cloth (Polyester with Ultra-PE ripstop reinforcement). Excellent condition. Checked and improved by Elvstrøm sailmaker in 2025, with new UV protection strip in light grey and freshly mounted profile spacers along the luff for improved sailing profile when furled
- Main sail made by Elvstrøm with Hydra Net cloth (Polyester with Ultra-PE ripstop reinforcement). Excellent condition. Fully battened (adjustable) and with highly functional mast carts. Checked and improved by Elvstrøm sailmaker in 2025, with additional reefing point and high visibility (orange) triangle at the top
- Elvstrøm lazy bag system (used, in good functional condition)
- Breezer jib (used, in good functional condition)
- Storm Jib approx. 8 sqm. North Sails. With special sleeve in high visibility orange to mount on top of furled Genoa (lightly used, very good condition)
- Spinnaker with storage bag and sleeve (lightly used, very good condition)
- Parasailor 2 by IS-Tec. Spi Code 0.5C. 47 sqm + 7.7 sqm (wing) area (lightly used, very good condition)
Hull:
- In 2008, the entire underwater hull was taken down to the Gelboat and re-coated with 4x layers of VC Tar2. Since then, the boat was antifouled with VC17m
- For 2025, smaller patches where the primer had flaked off were coated with two layers of VC Tar2. Also, the waterline was moved 3cm further up with 2x layers of VC Tar2 to accommodate the higher displacement during passage making. Entire underwater hull then wet-sanded and coated with two layers of VC17-compatible NAUTICO Superglide copper-based antifouling. The waterline was painted with International Toplac Plus (2025) in blue
Other:
- The boat comes with its original Lloyd’s Certificate of Hull Construction from 23 April 1980
- High quality lee-cloth installed at starboard side saloon berth. Custom-made by sailmaker in Cuxhaven (2025)
- 2x LEWMAR ST40 self-tailing winches for Genoa sheet (excellent condition, fully disassembled and serviced in 2025)
- 2x LEWMAR ST14 self-tailing winches for Spinnaker or gybe-preventers (excellent condition, fully disassembled and serviced in 2025)
- WINDPILOT Pacific windvane steering with full installation (pendulum steering via tiller) – works extremely well on this boat, we don’t know how some sailors can be without! (2025)
- Swimming platform in Stainless Steel and Teak planks with adapted position of swimming ladder: the ladder can easily be used even when Hydrogenerator and Windvane system are deployed. Also, the ladder can be operated by a person in the water (self-rescue)
- Barometer, Gold plated, Mod. Regatta, Wempe Chronometerwerke (used but excellent condition)
- Removable cockpit table in Mahogany
- On request: Separate sale of TRIBORD inflatable kajak for 3 persons (incl. 2x paddles and air pump, 2025)
- Sprayhood checked by sailmaker, with 3x added high visibility patches
- Cockpit tent provides shade or shelter during longer stays at anchor or in harbour
- Tailored full boat cover in canvas cloth for long-term storage (used, in good overall condition)
- Off course the boat comes with a lot of additional equipment such as e.g. 2x boat hooks, 3x winch handles, bucket, cleaning utensils, water hose, electric extension cable, a wide array of lines and fenders, spare lines, repair material, marine sealant, emergency epoxy, spare bolts & nuts, spare shackles, vacuum cleaner, basic kitchen utensils etc.
