Dufour Yachts 460 User manual

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OWNER'S MANUAL
YACHT DESIGN CATEGORY: A
IN ACCORDANCE WITH EUROPEAN DIRECTIVE 94/25/CE
AS AMENDED BY EUROPEAN DIRECTIVE 2003/44/CE

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Your agent:
Name
is representative and will give you all the help you need to solve any
difficulties you might have during launching and masting of your boat, as well as for commissioning
and maintenance technical checks. If necessary, he will help you with the administrative process of
registering your boat.
As soon as you become the owner, familiarize yourself with the manual supplied with your boat,
sign and date the receipt acknowledgements below, and give (or send) the last one to your agent.
Acknowledgement of receipt of the Owner's Manual. Owner's copy to be kept
in your Manual
I, the undersigned:
Name
Address
owner of DUFOUR 460 no.
confirm that I have received the DUFOUR 460 Owner's Manual and accept its being
written in the English language.
Dated:
Signature:
Detach along dotted line
…………………………………………………………………………………………………………………
Owner's Manual receipt acknowledgement to be returned to DUFOUR YACHTS
11, Rue Blaise Pascal- 17187 PERIGNY CEDEX- FRANCE
I, the undersigned:
Name
Address
owner of DUFOUR 460 no.
confirm that I have received the DUFOUR 460 Owner's Manual and accept its being
written in the English language.
Dated:
Signature:

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CONTENTS
INTRODUCTION ........................................................................................................................................................................7
I. GENERAL INFORMATION .............................................................................................................................................8
Design category................................................................................................................................................................8
Certification......................................................................................................................................................................8
Identification ....................................................................................................................................................................8
Builder's plate..................................................................................................................................................................9
Degrees of danger............................................................................................................................................................9
II. PRINCIPAL SPECIFICATIONS ....................................................................................................................................10
III. ELECTRICAL SYSTEMS ...............................................................................................................................................12
Safety and operating instructions for the electrical system........................................................................................... 12
Fitting new equipment.................................................................................................................................................... 12
Batteries ........................................................................................................................................................................ 13
Electric windlass............................................................................................................................................................ 13
220 / 110 volt installation (ISO 13297: 2000) ................................................................................................................... 14
IV. GAS INSTALLATION ....................................................................................................................................................15
Generalities.................................................................................................................................................................... 15
V. DRAIN & SANITATION SYSTEM ..................................................................................................................................17
Drainage system characteristics(ISO 15083: 2003)......................................................................................................... 17
Pressurized fresh-water pump ...................................................................................................................................... 17
Seacocks ........................................................................................................................................................................ 18
Operation of the sea toilets ............................................................................................................................................ 18
Holding tank operation(ISO 8099:2000) .......................................................................................................................... 18
VI. FLOODING ...................................................................................................................................................................19
VII. FIRE PROTECTION ......................................................................................................................................................19
Installation ..................................................................................................................................................................... 19
Safety instructions ......................................................................................................................................................... 20
VIII. ENGINE .......................................................................................................................................................................21
General precautions....................................................................................................................................................... 21
Exhaust gas emission..................................................................................................................................................... 21
Safety21
IX. FUEL INSTALLATION ..................................................................................................................................................22
X. HELM SYSTEM ............................................................................................................................................................22
Helm 22
Emergency tiller............................................................................................................................................................. 23
XI. SAILING .......................................................................................................................................................................23
XII. FALL PREVENTION AND MEANS OF GETTING BACK ABOARD ....................................................................................24
XIII. LIGHTNING PROTECTION ..........................................................................................................................................24
Maintenance................................................................................................................................................................... 24
Protection of people during a thunderstorm .................................................................................................................. 25
XIV. ENVIRONMENTAL PROTECTION & SAFETY ..............................................................................................................25
XV. SAFETY FACILITIES ....................................................................................................................................................26
XVI. HANDLING, TRANSPORTING, HAULOUT ...................................................................................................................26
XVII. MOORING, ANCHORING, AND TOWING ....................................................................................................................27
Responsibility................................................................................................................................................................. 27
XVI. GUARANTEE, TRANSFER OF OWNERSHIP ....................................................................................................................28
1. Presentation plan .......................................................................................................................................................33
2. Accommodation layout ...............................................................................................................................................34
3. Deck fittings plan ........................................................................................................................................................37
4. Sail plan ......................................................................................................................................................................39
5. Halyard and sheet operating diagram .......................................................................................................................41
6. 220 V circuit diagram ..................................................................................................................................................47

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7. Charging and power system diagram ........................................................................................................................49
8. 12 V electric panel ......................................................................................................................................................51
9. 12 V electrical panel terminal diagram .....................................................................................................................53
10. 12 V electrical installation diagram ...........................................................................................................................55
11. 220 V electrical installation diagram .........................................................................................................................58
12. Fuse location diagram ................................................................................................................................................61
13. Steering system diagram ...........................................................................................................................................64
14. Gas system diagram ...................................................................................................................................................66
15. Abandon ship plan ......................................................................................................................................................69
16. Fresh-water system diagram .....................................................................................................................................73
17. Drain system diagram ................................................................................................................................................77
18. Skin fitting location diagram ......................................................................................................................................80
19. Mechanical installation diagram ...............................................................................................................................84
20. Gas system diagram ...................................................................................................................................................86
21. Holding tank installation diagram .............................................................................................................................88
22. Lifting diagram ...........................................................................................................................................................91
NOTES ....................................................................................................................................................................................93

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DUFOUR YACHTS is pleased to present you with this Manual which will help you get to know your boat
better.
This Manual has been produced to help you use your boat safely and enjoyably. It contains details of the
boat, the equipment supplied or fitted, its systems and information about their use. Read it carefully and
familiarize yourself with the boat before using it.
This Owner’s Manual is not a course in sailing safety or seamanship. If this is your first boat, or you are
changing to a type of boat you are unfamiliar with, for your convenience and safety, make sure you gain
experience handling and using it before taking command. Your agent, your national sailing or cruising
federation or your yacht club will be happy to give you information about sailing schools or qualified
instructors in your area.
Ensure that forecast wind and sea conditions correspond to the design category of your boat, and that you
and your crew are capable of handling the boat in these conditions. Even when your boat is suitable for
them, the sea and wind conditions corresponding to design categories A, B, and C vary from severe storm
for category A to severe conditions for the top end of category C, subject to dangers of abnormal gusts or
waves; these are dangerous conditions in which only an experienced, trained crew in good condition,
sailing a properly-maintained boat, can sail in a satisfactory manner.
This Owner's Manual is not a detailed maintenance or repair guide. In the event of problems, consult the
boatbuilder or their representative. If a maintenance manual is provided, be sure to use it.
Always employ the services of an experienced professional for maintenance, fitting accessories, or
modifications. Modifications that could affect the characteristics of the boat must be assessed, performed
and documented by qualified personnel. The boatbuilder cannot be held responsible for modifications
made without their approval.
In certain countries, a skipper's license or some form of authorization is required, or special rules and
regulations are applicable.
Always maintain your boat correctly and make allowance for deterioration due to age or resulting, where
applicable, from heavy or unsuitable use. Any boat, however sturdy it is, can be severely damaged if it is
used incorrectly. This is incompatible with safe sailing. Always suit your speed and heading to the
prevailing sea conditions.
If your boat is equipped with a life-raft, read its instruction manual carefully. The crew must have on board
all the safety equipment (life-jackets, harnesses, etc.) corresponding to the type of boat, weather
conditions, etc. In some countries, this equipment is mandatory. The crew must be familiarized with the use
of all the safety equipment and with emergency safety procedures (man overboard recovery, towing, etc.);
training sessions are regularly organized by sailing schools and clubs.
It is recommended that all persons wear appropriate buoyancy aids (life-jackets, personal flotation devices)
when on deck. It should be noted that in certain countries, it is compulsory to wear a buoyancy aid
(complying with national regulations) at all times.
KEEP THIS MANUAL IN A SAFE PLACE AND PASS IT ON TO THE NEW OWNER IF YOU SELL THE
BOAT.
WARNING: Our boats are regularly improved in the light of our customers’ experiences and
researched by the shipyard, and so the specifications given in this Owner’s Manual are not
contractually binding and may be changed without notice and without any obligation to
update. This manual is intended to cover as much information as possible, so certain
equipment or paragraphs might not apply to your boat. In case of doubt, please refer to the
inventory which should have been given to you by your agent when you placed your order.

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I.
Design category
Your DUFOUR 460 comes under the OCEAN-GOING design category A.
Under conditions of normal use, your boat is designed to sail in waves with a significant height
exceeding 4 m and winds of force 8 or above on the Beaufort scale, and to withstand the severest
conditions.
This sailing capability is equally dependent on the skills of the crew, their physical capacities, the
maintenance of the boat and its equipment.
So always take care before putting to sea.
DUFOUR YACHTS is not able to guarantee perfect functioning of the boat in exceptional sea
conditions (violent storms, hurricanes, cyclones, waterspouts, etc.)
SUMMARY OF DESIGN CATEGORIES
Check weather information before putting to sea: Take to the sea, don’t take risks!
In port: every day, the Harbor Master's Office posts weather bulletins and forecasts over the
next few days. .
Météo France on 0836 68 08 08
Navifax - direct on 0836 70 18 52
VHF: CROSS transmit several bulletins per day, preceded by an announcement on Channel 16.
Certification
DUFOUR YACHTS has chosen the Institut pour la Certification et la Normalisation dans le Nautisme
as the notified body for verifying that your boat complies with European directive CE 94/25, in
accordance with module B.
Identification
The hull identification number is located on starboard side of transom. It contains a series of letters
and numbers that begin with FR-DUF...
Design
Category
Type of sailing
Wind strength
(Beaufort)
Wind speed
Effective wave height to
be taken into account
A
Ocean-going
Above 8
Up to 28 m/s
Higher than 4 m
B
Open sea
Up to 8
Up to 21 m/s
Up to and including 4 m
C
Inshore
Up to 6
Up to 17 m/s
Up to and including 2 m
D
Sheltered waters
Up to 4
Up to 13 m/s
Up to and including 0.5 m

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Builder's plate
Design category = A : Ocean-going (see 1.1)
Maximum number of people:
Category A = 10
Category B = 10
Category C = 12
Category D = 14
WARNING
Do not exceed the maximum recommended number of people. However many people there are
aboard, the total weight of the people and equipment must never exceed the maximum
recommended loading.
Recommended max. load:
Category A = 2,470kg
Category B = 2,470 kg
Category C = 2,470 kg
Category D = 2,470 kg
WARNING
When loading the boat, never exceed the recommended maximum load. Always load the boat
carefully and distribute the weight in a suitable manner in order to maintain the theoretical trim
(approximately horizontal). Avoid placing heavy loads high up.
CE 0607
Degrees of danger
DANGER
Indicates an extreme intrinsic risk that presents a high probability of
death or permanent injury if proper precautions are not taken.
WARNING
Indicates a risk that presents a high probability of death or permanent
injury if proper precautions are not taken.
NOTE
Indicates a reminder about safety-related practices, or points out
dangerous practices that could result in personal injury or damage to
the boat or its components, or to the environment.
: Recommended by the builder for navigation in sea
conditions for category for which it was built.
: CE mark indicating that the boat complies with all the
requirements of the Directive. : The sequence of digits is
the code for the Certifying Body. In this case, it is ICNN
(Institut pour la Certification de la Normalisation dans le
Nautisme), (see also: Safety Compliance Declaration).
: recommended by the manufacturer including the
weight of all persons aboard, provisions and
personal belongings, and all equipment not included
in the boat’s light displacement, excluding the
contents of the tanks.
Part of this information is given on the builder’s plate
attached to the boat. A full explanation of this
information is given below.

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II.
Model:
DUFOUR 460
Grand Large
Boatbuilder
Dufour Yachts
11, Rue Blaise Pascal
17187 Périgny cedex
FRANCE
Designer:
Umberto Felci
Interior design
DUFOUR Design
Design category
A
Notified body no.
CE/0607
Engine #
FR-DUFGXXX3XXXX
Primary means of propulsion
Sail
Lmax
LOA * (with overhang stemhead)
14.15 m
LH
Hull length *
13.50m
Bmax
Maximum beam *
4.50 m
BH
Hull beam *
4.50 m
HA
Max height clearance (unladen)*
20.20 m
Tmax
Draft (deep keel) full-load displacement*
2.30 m
Deep keel weight
2,850 kg
Draught (deep keel) *
1.95 m
Shallow keel ballast weight
3,000 kg
Standard mainsail area (approximate)
49.8 m²
Self-tacking jib surface area (approximate)
34.7 m²
Maximum permissible on-board engine power
75 HP / 55 kW
Water capacity excl. 40L (appx.) water heater
530 L
Diesel capacity (approximate)
250 L
Holding tank
50 L (+50L as option)
Engine battery
100 Ah
Auxiliary battery (2 standard + 1 optional)
280 Ah + (+140 Ah as an
optional extra)
MLC
Light displacement (deep keel)
11,704 kg
MMO
Minimum condition displacement (deep keel)
12,001 kg
ML
Maximum loading
3,210 kg
Total weight of liquids (all tanks full)
740 kg
MLDC
Displacement with maximum load
14,920 kg
*The above dimensions are in accordance with ISO 8866, specifically:
Lmax: maximum length of the vessel including normally fixed parts such as roller chocks,
balconies, etc.
LH: maximum length of the vessel including structural elements that are an integral part of the
vessel, and excluding removable parts.
Bmax: breadth of the vessel measured between the outermost portions and may include
detachable parts such as top rails, railings, etc.
BH: vessel width measured between the outermost fixed portions and excluding all removable
parts
HA: vertical distance between the water plane in the lightship condition and the highest point of
the mast structure. (This does not take into account equipment such as lights and antennas that
can be attached to the masthead)