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Summary of Contents for Dufour 41
- Page 1 OWNER'S MANUAL DESIGN CATEGORY A ACCORDING TO EUROPEAN DIRECTIVE 2013/53/EU ENGLISH 11-07-2023 1/95 DUFOUR 41...
- Page 2 Cette page est blanche intentionnellement. Cette page est blanche intentionnellement. Cette page est blanche intentionnellement. ENGLISH 11-07-2023 2/95 DUFOUR 41...
- Page 3 I, the undersigned: Name: Address: DUFOUR 41 N owner of ° hereby declare that I have received the DUFOUR 41 Owner’s Manual and accept that it is an English language version. Date: Signature: Cut along the dotted line ……………………………………………………………………………………………………...
- Page 4 Cette page est blanche intentionnellement. Cette page est blanche intentionnellement. Cette page est blanche intentionnellement. ENGLISH 11-07-2023 4/95 DUFOUR 41...
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Page 5: Table Of Contents
MERGENCY TILLER XI. SAILING ....................................24 ....................................24 IELD OF VIEW XII. PREVENTION OF FALLS AND MEANS OF REBOARDING ....................... 25 XIII. LIGHTNING PROTECTION ..............................26 ....................................26 AINTENANCE ............................26 ROTECTION OF PERSONS DURING STORMS ENGLISH 11-07-2023 5/95 DUFOUR 41... - Page 6 ACCOMMODATION LAYOUT ............................33 DECK FITTINGS PLAN ............................... 37 SAIL PLAN ..................................39 HALYARD AND SHEET RIGGING PLAN ..........................41 220 V ELECTRICAL PANEL DIAGRAM ..........................50 220 V CIRCUIT DIAGRAM ..............................52 220 V CIRCUIT DIAGRAM SHOWING OPTIONS ......................... 54 220 V ELECTRICAL LAYOUT DIAGRAM..........................
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Page 7: Introduction
If in doubt, please check the inventory that you should have received from your agent at the time of ordering your boat. ENGLISH 11-07-2023 7/95 DUFOUR 41... -
Page 8: General Information
GENERAL INFORMATION Design category DUFOUR 41 Your is design category A. A category A boat is considered to have been designed for sailing in conditions with winds below 10 on the Beaufort scale and the associated wave heights. NOTE: While these kinds of conditions are generally encountered during long voyages, such as ocean crossings, they can also occur just off the coast in areas that are not protected from wind and waves for several hundreds of nautical miles. -
Page 9: Shipbuilder's Plate
Indicates a recap of safety practices or draws your attention to hazardous practices that may result in physical harm to persons or CAUTION damage to the boat, its components or the environment. ENGLISH 11-07-2023 9/95 DUFOUR 41... -
Page 10: Technical Specifications
TECHNICAL SPECIFICATIONS Model: DUFOUR 41 Shipbuilder Dufour 11, Rue Blaise Pascal 17187 Périgny cedex FRANCE Architect: Umberto Felci Interior design Design category Notified body N° CE/0607 CIN N° Main means of propulsion Sail Overall length * 12.75 m Hull length * 11.99 m... -
Page 11: Specific Information
The second index (AVS) represents the angle of vanishing stability in degrees. Minimum sailing Arrival condition condition (M (MLA) 41.50 37.74 STIX 116.1° 110.3° The figures given here correspond to a 3 cabin version with long ballast and a standard mast. ENGLISH 11-07-2023 11/95 DUFOUR 41... -
Page 12: Electrical Systems
Where 220 V or 110 V installations are concerned, only use electric appliances that are double- insulated or earthed. When installing such equipment, follow the fitting instructions carefully (cable cross-sections, protection mechanisms). To prevent maintenance issues, note in the manual any changes made to the electrical circuit. ENGLISH 11-07-2023 12/95 DUFOUR 41... -
Page 13: Batteries
Connect the electrical appliances’ metal covers or housings to the boat's ground conductor (conductor may be green or green with yellow stripe). Make sure all electrical appliances are either double-insulated or earthed. CAUTION! When the boat is in dock, place the circuit breaker in the “OFF” position. ENGLISH 11-07-2023 13/95 DUFOUR 41... - Page 14 If the boat has an inverter that converts direct current (D.C.) to alternating current (A.C.), to prevent any risk of death or injury due to electric shock, disconnect the shore AC supply line and the inverter’s DC supply before opening any electrical panel or working on electrical circuits. ENGLISH 11-07-2023 14/95 DUFOUR 41...
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Page 15: Gas Installation
In the event of an observed or suspected LPG leak, take the following steps immediately: Shut-off the main supply valve(s). Extinguish any open flames or other ignition sources (heating appliances, cooking appliances, night lights, etc.). Do not turn on or off any electrical switches. If possible, evacuate the area. ENGLISH 11-07-2023 15/95 DUFOUR 41... -
Page 16: Safety Warnings
It is vital to carry out a routine test each time you board the boat, or once a week during a longer cruise. If the test reveals the device to be faulty, replace it with a device of an equivalent type. ENGLISH 11-07-2023 16/95 DUFOUR 41... -
Page 17: Bilge Pump And Sanitation System
After draining the water heater, make sure that its resistance is fully submerged before switching it back on again. Seacocks Seacocks are of the ¼ turn type: - OPEN position: the handle is in line with the seacock body, - CLOSED position: the handle is perpendicular to the seacock body. ENGLISH 11-07-2023 17/95 DUFOUR 41... -
Page 18: Using Sea Toilets
Clean the tank once per sailing season using a biodegradable disinfectant. Leave the tank system empty when the boat is docked in temperatures below freezing. During wintering, use a food-grade, non-toxic antifreeze that is conform to local regulations. ENGLISH 11-07-2023 18/95 DUFOUR 41... -
Page 19: Flooding
Any non-flammable materials kept in the engine bay must be securely stored in such a way that they cannot fall on the machinery, or block the entrance or exit of the engine bay. ENGLISH 11-07-2023 19/95 DUFOUR 41... -
Page 20: Safety Instructions
● Hang loose curtains near the cooker or any other open-flame appliance. ● Store flammable products in the engine bay. ● Modify any onboard installation (especially the electrical, fuel or gas systems) nor allow unqualified people to make such modifications. ENGLISH 11-07-2023 20/95 DUFOUR 41... -
Page 21: Engine
Where possible, the engine must be stopped when carrying out any maintenance operation or engine inspection. If this is not possible, special care must be taken when close to moving parts (propeller shafts, belts, etc.) so as to avoid risks of injury. ENGLISH 11-07-2023 21/95 DUFOUR 41... -
Page 22: Wintering
● Smoke while filling the fuel tanks. ● Obstruct ventilation ports (vent, engine ventilation grille): make sure they are kept clear at all times. ● Modify the installation unless this is performed by a technician with the appropriate marine engineering qualifications. ENGLISH 11-07-2023 22/95 DUFOUR 41... -
Page 23: Steering System
Emergency tiller. CAUTION! ● The Dufour 41 is delivered with an emergency tiller that must be readily accessible at all times; we recommend that you store it in a cockpit locker. ● It is designed solely for sailing at reduced speed in the event of a steering wheel failure. -
Page 24: Sailing
Keep your attention focused when moving from one helm station to the other. CAUTION! Some very large foresails (genoa, code 0, spinnakers, etc.) may obstruct the view over long periods of time. Keep an active watch while they are in use. ENGLISH 11-07-2023 24/95 DUFOUR 41... -
Page 25: Prevention Of Falls And Means Of Reboarding
When moving around the boat while under sail, use the various handholds whenever possible, including the wheel’s handrails, the cockpit table, the roof’s side rails, shrouds, etc. DUFOUR 41 is fitted with a telescopic boarding ladder fixed to the aft gate. To use the ladder, lower the aft gate by releasing the lifting cable then unfold the ladder and swing it into position. -
Page 26: Lightning Protection
● Some products may also present risks to your safety and the safety of other people; this is why it is essential to read and strictly follow the use recommendations. ● All substances used on the boat must be clearly labelled and stored in a suitable area of the boat. ENGLISH 11-07-2023 26/95 DUFOUR 41... -
Page 27: Safety Equipment
The aft lifting point is located near the engine’s sail-drive. Operations involving masting, demasting and rigging adjustments must be carried out by professionals who will apply the mast manufacturer’s directives regarding the assembly, maintenance and various adjustment settings specific to this boat. ENGLISH 11-07-2023 27/95 DUFOUR 41... -
Page 28: Docking, Mooring And Towing
80% of the tensile strength of the corresponding anchor point. It is also important that the owner considers the actions required to fix a towing cable on-board. ENGLISH 11-07-2023 28/95 DUFOUR 41... -
Page 29: Transfer Of Ownership
Exemplaire à retourner dans les 15 jours suivant la transaction à : Copy to be returned within 15 days of the transaction to: SAV DUFOUR 11 rue Blaise Pascal 17187 PERIGNY CEDEX FRANCE Cette page est blanche intentionnellement. ENGLISH 11-07-2023 29/95 DUFOUR 41... - Page 30 Cette page est blanche intentionnellement. Cette page est blanche intentionnellement. ENGLISH 11-07-2023 30/95 DUFOUR 41...
- Page 31 ACCOMMODATION LAYOUT ......................33 DECK FITTINGS PLAN ........................37 SAIL PLAN ............................. 39 HALYARD AND SHEET RIGGING PLAN ..................... 41 220 V ELECTRICAL PANEL DIAGRAM ....................50 220 V CIRCUIT DIAGRAM ....................... 52 220 V CIRCUIT DIAGRAM SHOWING OPTIONS ................54 220 V ELECTRICAL LAYOUT DIAGRAM ....................
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Page 32: Presentation Plan
Presentation plan ENGLISH 11-07-2023 32/95 DUFOUR 41... -
Page 33: Accommodation Layout
Accommodation layout Ref. Description VERSION 3 CABINS – 2 HEAD COMPARTMENTS VERSION 3 CABINS – 3 HEAD COMPARTMENTS VERSION 4 CABINS – 2 HEAD COMPARTMENTS ENGLISH 11-07-2023 33/95 DUFOUR 41... - Page 34 ENGLISH 11-07-2023 34/95 DUFOUR 41...
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Page 37: Deck Fittings Plan
PORT STERN RAIL STARBOARD STERN RAIL CENTRAL RAIL SWIM LADDER COACHROOF HANDRAIL SELF-TACKING JIB TRACK GENOA TRACK OCEAN PACK ALUMINIUM MOORING CLEAT WINCH ROOF COAMING WINCH OCEAN PACK STAND-UP PULLEY CRANK CASE CRANK CASE OCEAN PACK ENGLISH 11-07-2023 37/95 DUFOUR 41... - Page 38 ENGLISH 11-07-2023 38/95 DUFOUR 41...
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Page 39: Sail Plan
S² Mainsail 43.5 m² 37.7 m² 47.7 m² S² Self-tacking jib 30.8 m² 30.8 m² 30.8 m² 40 m² 40 m² 40 m² S² Genoa* 80 m² 80 m² 80 m² S² Code 0* *Option ENGLISH 11-07-2023 39/95 DUFOUR 41... - Page 40 ENGLISH 11-07-2023 40/95 DUFOUR 41...
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Page 41: Halyard And Sheet Rigging Plan
Halyard and sheet rigging plan 5.A - EASY PACK ϕ PULLEY 60 SINGLE ϕ PULLEY 60 VIOLIN ϕ PULLEY 60 BECKET SELF-TACKING JIB SHEET MAINSAIL HALYARD RIS 2 BOOM VANG MAINSAIL OUTHAUL MAINSAIL SHEET RIS 1 SELF-TACKING JIB HALYARD ENGLISH 11-07-2023 41/95 DUFOUR 41... - Page 42 ENGLISH 11-07-2023 42/95 DUFOUR 41...
- Page 43 ENGLISH 11-07-2023 43/95 DUFOUR 41...
- Page 44 ENGLISH 11-07-2023 44/95 DUFOUR 41...
- Page 45 60 VIOLIN ϕ PULLEY 60 BECKET GENOA SHEET MAINSAIL HALYARD RIS 2 BOOM VANG MAINSAIL OUTHAUL MAINSAIL SHEET RIS 1 JIB/GENOA HALYARD GENOA CAR END STOP SPINNAKER HALYARD / CODE 0 SPINNAKER TACK ASYMMETRICAL SPINNAKER SHEET ENGLISH 11-07-2023 45/95 DUFOUR 41...
- Page 46 ENGLISH 11-07-2023 46/95 DUFOUR 41...
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Page 50: 220 V Electrical Panel Diagram
220 V Electrical panel diagram Ref. Description SHORE POWER PROTECTION BOX DISTRIBUTION UNIT DIFFERENTIAL CIRCUIT-BREAKER CHARGER CIRCUIT-BREAKER WATER HEATER CIRCUIT-BREAKER CIRCUIT-BREAKER, SOCKETS -1 CIRCUIT-BREAKER, SOCKETS -2 “MAINS PRESENT” LED “REVERSED POLARITY” LED ENGLISH 11-07-2023 50/95 DUFOUR 41... - Page 51 ENGLISH 11-07-2023 51/95 DUFOUR 41...
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Page 52: Circuit Diagram
220 V circuit diagram Ref. Description SHORE POWER SOCKET SHORE POWER PROTECTION PANEL BATTERY CHARGERS DISTRIBUTION PANEL SHORE POWER LINE CONNECTOR DISTRIBUTION CONNECTOR DISTRIBUTION CONNECTOR 220V SOCKETS WATER HEATER INVERTER-CHARGER 2000VA ENGLISH 11-07-2023 52/95 DUFOUR 41... - Page 53 ENGLISH 11-07-2023 53/95 DUFOUR 41...
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Page 54: 220 V Circuit Diagram Showing Options
BATTERY CHARGERS DISTRIBUTION PANEL SHORE POWER LINE CONNECTOR DISTRIBUTION CONNECTOR DISTRIBUTION CONNECTOR 220V SOCKETS WATER HEATER INVERTER-CHARGER 2000VA DISTRIBUTION BOX - AIR CONDITIONING AIR CONDITIONING UNITS SWITCHES - INVERTERS AIR CONDITIONING PUMP GENSET GENSET INVERTER ENGLISH 11-07-2023 54/95 DUFOUR 41... - Page 55 ENGLISH 11-07-2023 55/95 DUFOUR 41...
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Page 56: 220 V Electrical Layout Diagram
AIR CONDITIONING UNIT 3500 BTU* GROUND PLATE INVERTER WATER HEATER SOCKET WATER HEATER 40L DISTRIBUTION BOX AIR CONDITIONING DISTRIBUTION BOX* INVERTER PROTECTION BOX 230V – 16A SOCKET AC CABLE BUNDLE BATTERY CHARGER 12V-17A AIR CONDITIONING PUMP* OPTION ENGLISH 11-07-2023 56/95 DUFOUR 41... - Page 57 ENGLISH 11-07-2023 57/95 DUFOUR 41...
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Page 58: Diagram Showing Fuse Locations
CHARGER E 230V Circuit-breaker 10A WATER HEATER E 230V Circuit-breaker 10A 230V SOCKETS E 230V Circuit-breaker 25A GENSET* E 230V Circuit-breaker 32A AIR CONDITIONING SHORE POWER SOCKET* E 230V Circuit-breaker 32A SHORE POWER SOCKET OPTION ENGLISH 11-07-2023 58/95 DUFOUR 41... - Page 59 ENGLISH 11-07-2023 59/95 DUFOUR 41...
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Page 60: Charging & Power Circuit Diagram
House batteries House batteries switch Fuse 5A Alternator Splitter Starter Engine battery Engine battery switch Windlass relay Bilge fan relay Fuse 10A Bilge fan Inverter / charger 2000W Terminal - Terminal + MM- Engine ground ENGLISH 11-07-2023 60/95 DUFOUR 41... - Page 61 ENGLISH 11-07-2023 61/95 DUFOUR 41...
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Page 62: Electrical Panel
Ref. Functions Water unit Indoor fridge Bilge pump Sailing Shower pump Autopilot Navigation lights Saloon lighting Mooring light Cabin lighting Masthead light Hi-Fi Deck light Instruments Cockpit fridge Cabin USB Windlass control Free Display panel ENGLISH 11-07-2023 62/95 DUFOUR 41... - Page 63 ENGLISH 11-07-2023 63/95 DUFOUR 41...
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Page 64: Terminal Strip
Not used Not used Water unit Indoor fridge Bilge pump Sailing Shower pump Autopilot Navigation lights Saloon lighting Mooring light Cabin lighting Masthead light Hi-Fi Deck light Instruments Cockpit fridge Cabin USB Windlass control Free ENGLISH 11-07-2023 64/95 DUFOUR 41... - Page 65 ENGLISH 11-07-2023 65/95 DUFOUR 41...
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Page 66: Electrical Layout Diagram
Windlass relay Windlass Port – starboard navigation lights LED Stern light LED Bilge pump buzzer Compass USB socket Tunnel thruster* Submerged bilge pump Pressurised water unit VHF * Autopilot* Engine battery 12V PANEL Refrigeration unit Option ENGLISH 11-07-2023 66/95 DUFOUR 41... - Page 67 ENGLISH 11-07-2023 67/95 DUFOUR 41...
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Page 68: Lighting Circuit Diagram
15. Lighting circuit diagram Ref. Description Reading light LED + USB Indirect lighting LED Spot LED Spot LED + switch Dual switch Two-way switch ENGLISH 11-07-2023 68/95 DUFOUR 41... - Page 69 ENGLISH 11-07-2023 69/95 DUFOUR 41...
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Page 70: Steering System Diagram
PORT RUDDER COLUMN STARBOARD RUDDER COLUMN RUDDER POST SLEEVE PLAIN BEARING - BOTTOM FRICTION WASHER EP3 FRICTION WASHER EP5 SWIVEL BEARING - TOP RUDDER POST POD + PORT INSTRUMENT PLATE POD + STARBOARD INSTRUMENT PLATE EMERGENCY TILLER. ENGLISH 11-07-2023 70/95 DUFOUR 41... - Page 71 ENGLISH 11-07-2023 71/95 DUFOUR 41...
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Page 72: Gas System
BULKHEAD FITTING - ELBOW VERSION D8 PVC PIPE (PROTECTION) 2-BURNER HOB BUILT-IN PLANCHA OPTION BATTERY FOR THE BUILT-IN PLANCHA 0.6m HOSE G1#4 D8 1m HOSE G1#4 G1#4 OPTION 1m HOSE G1#4 G1#4 GASBOX EXHAUST 3/4’’ + VALVE GASBOX ENGLISH 11-07-2023 72/95 DUFOUR 41... - Page 73 ENGLISH 11-07-2023 73/95 DUFOUR 41...
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Page 74: Abandon Ship Plan
Saloon benchseat: 1 kg dry powder extinguisher 5A/34B ** Forward cabin: 1 kg dry powder extinguisher 5A/34B ** Engine compartment fire extinguisher port Exit can be used as an escape route Main emergency exit Fire blanket (recommended location)** Smoke detector Not supplied ENGLISH 11-07-2023 74/95 DUFOUR 41... - Page 75 ENGLISH 11-07-2023 75/95 DUFOUR 41...
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Page 77: Fresh Water System
Cold water pipe Water heater Aft water tank 250 L Pressurised water unit 3-way ½" collector* Galley mixer tap Bathroom single mixer tap Mixer tap – bathroom shower Exterior sink mixer tap* Deck shower OPTION ENGLISH 11-07-2023 77/95 DUFOUR 41... - Page 78 ENGLISH 11-07-2023 78/95 DUFOUR 41...
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Page 79: Bilge Pump System
DISCHARGE HOSE D25 AUTOMATIC SUBMERGED BILGE PUMP 12V ELBOW FITTING 45° BRASS MF 1'' 1/4 TURN VALVE BRASS FF 1" CHROMED BRASS THRU-HULL FITTING 1’’ BARBED NIPPLE BRASS M 1’’x25 JABSCO VALVED STRAINER D25MM MANUAL BILGE PUMP ENGLISH 11-07-2023 79/95 DUFOUR 41... - Page 80 ENGLISH 11-07-2023 80/95 DUFOUR 41...
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Page 81: Location Of Thru-Hull Fittings
EXTERIOR SINK WATER DISCHARGE* 1’’ MANUAL BILGE PUMP DISCHARGE 1’’ ELECTRIC BILGE PUMP DISCHARGE 1/2’’ WATERMAKER DISCHARGE* 3/4'’ WATERMAKER INLET* 1/2’’ AIR CONDITIONING WATER DISCHARGE* 3/4'’ AIR CONDITIONING WATER INLET* 1/2’’ AIR CONDITIONING CONDENSATES DISCHARGE* Option ENGLISH 11-07-2023 81/95 DUFOUR 41... - Page 82 ENGLISH 11-07-2023 82/95 DUFOUR 41...
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Page 83: Engine Layout Diagram
Exhaust pipe (ϕ as per the engine) Waterlock Engine insulating foam Engine circuit breaker Starter battery 75 Ah Charge divider Diesel filler deck plate Propeller (as per the motorisation or option) Polyester engine mount Sail-Drive Propulsion engine (as per option) ENGLISH 11-07-2023 83/95 DUFOUR 41... - Page 84 ENGLISH 11-07-2023 84/95 DUFOUR 41...
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Page 85: Diesel Circuit
Filling hose D50 Vent pipe D16 – part 1 Vent pipe D16 – part 2 Diesel filler deck plate Tank fixing crosspiece Tapping plate + cut-off valve Resistive level sensor Inspection cap Diesel tank 160 L ENGLISH 11-07-2023 85/95 DUFOUR 41... - Page 86 ENGLISH 11-07-2023 86/95 DUFOUR 41...
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Page 87: Engine Ventilation System
24. Engine ventilation system Ref. Description Bilge fan 12 V Angled sleeve D100 Sleeve grille D100 Plastic sleeve Sleeve grille D75 Air inlet duct D100 Extraction duct D75 Air inlet duct D100 Extraction duct D70 ENGLISH 11-07-2023 87/95 DUFOUR 41... - Page 88 ENGLISH 11-07-2023 88/95 DUFOUR 41...
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Page 89: Holding Tank Installation
25. Holding tank installation Ref. Description Thru-hull fitting + valve 3/4’’ Pumping deck plate Ø50 Thru-hull fitting + valve 2’’ Pipe Ø20 Anti-odour pipe Ø38 Anti-odour pipe Ø51 Chromed brass vent Polyethylene holding tank 50 L Swan neck ENGLISH 11-07-2023 89/95 DUFOUR 41... - Page 90 ENGLISH 11-07-2023 90/95 DUFOUR 41...
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Page 91: Lifting Plan
26. Lifting plan Ref. Description See red triangle under the deck ledge for information Light displacement: (see chapter II) Main beam: 4.30 m Standard draft: 2.10 m ENGLISH 11-07-2023 91/95 DUFOUR 41... - Page 92 ENGLISH 11-07-2023 92/95 DUFOUR 41...
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Page 93: Navigation Lights
27. Navigation lights Function Switch Sail powered Engine powered 7 + 11 Anchoring 12V PANEL Red / green bow lights Range 2Nm Stern light Range 2Nm Masthead light Range 3Nm Mooring light Range 2Nm ENGLISH 11-07-2023 93/95 DUFOUR 41... - Page 94 NAVIGATION LIGHTS MASTHEAD LIGHTS MOORING LIGHT ENGLISH 11-07-2023 94/95 DUFOUR 41...
- Page 95 NOTES ENGLISH 11-07-2023 95/95 DUFOUR 41...
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