Lagoon 400 User manual

www.cata-lagoon.com
LAGOON 400
Owner's Manual

We share a common passion for the sea: we, LAGOON as shipbuilders
and you who want to live your passion on the Seven Seas.
We are delighted to welcome you to the great family of LAGOON boat
owners and we congratulate you on it.
This manual was meant to help you to enjoy your boat comfortably and
safely. It includes the boat specifications, the equipment provided or ins-
talled, the systems and tips on her operation and maintenance. Read this
manual carefully before you put out to sea so that you can make the most
of her and avoid any damage and any trouble. Get to know your boat be-
fore you sail.
We keep improving our boats as we want you to benefit from the techno-
logical developments, new equipment or materials and our own experien-
ce. That is the reason why the specifications and information given are not
contractual, they may be modified without prior notice or up dates.
This instruction guide has a general purpose and it may mention some
equipment or accessories or deal with some points or questions that are
not relevant to your own boat ; if in doubt, refer to the inventory that you
received on delivery of your boat.
If this is your first boat or if you change to a new type of boat which you
are not used to, get some training in boat control and sailing to ensure
your safety and comfort. Your dealer, your international sailing associa-
tion or your yacht club will be very happy to recommend local sailing scho-
ols or professional instructors.
Even if everything has been provided for and designed for the safety of
the boat and the safety of her users, don't forget that sailing highly de-
pends on the weather conditions, the sea condition, and that only an ex-
perienced and very fit crew, handling a well-maintained boat can sail
satisfactorily.
The sea and wind conditions that correspond to the design categories A,B
or C are changeable and are dependent on the hazards of unusually
strong waves or gusty winds. Therefore total safety cannot be guaran-
teed, even if your boat meets the requirements of a category.
Our network of LAGOON authorized dealers will be at your dis-
posal to help you get acquainted with your boat and will be the
most qualified to take care of her maintenance.
Always listen to the weather forecast before you put out to sea.
Make sure the sea and wind conditions will correspond to the
category of your boat and you and your crew are able to han-
dle the boat in these conditions.

The sea and the water are not the natural environment of Man and one
has to respect their laws and strength.
Adapt the use of your boat to her condition that wears out with time and
use.
Any boat, however solid she may be, may be severely damaged if badly
used. This is not compatible with a secure navigation. Always adapt the
speed and direction of your boat to the conditions of the sea.
The 'COLREG', an international regulation in order to prevent collision at
sea, published by the International Maritime Organization, specifies the
steering and course regulations, the navigation lights etc. throughout the
world Make sure you know these regulations and you have on board a
manual that explains them.
In numerous countries, a licence, an authorization or a training course is
requested.
Make sure you have this legal authorization before you use your boat.
Always use an experienced technician for the maintenance of your boat,
the fitting of accessories and the carrying out of small modifications. The
written authorization of the builder or his legal representative is compul-
sory for modifications that alter the specifications of the boat, in particular
the vertical layout of the grounds (putting up of a radar, modification of the
mast, change of the engine etc.).
The users of the boat are informed of the following:
- The entire crew must be trained properly.
- The boat shall not be loaded more with than the maximum load recom-
mended by the builder, in particular the total weight of the food supplies,
of the different equipment that are not supplied by the builder and of the
persons on board. The weight of the boat shall be properly distributed.
- The water in the bilge shall be kept at its minimum.
- The stability is reduced when you add weight in the upper parts.
- In case of heavy weather, the hatches, lockers and doors shall be closed
in order to minimize the risk of water coming in.
- The stability may be reduced when you tow a boat or when you lift heavy
weights with the davits or the boom.
- Breakers are serious dangers to stability.
- In the boat there shall be all the proper safety equipment (harness, fla-
res, liferaft etc.) depending on the type of boat, the country, the weather
- The crew must be familiar with the use of all the safety equipment and
the emergency safety procedures (MOB, towing etc.).
- Anyone on the deck shall wear a life jacket or a buoyancy aid. Please
note that in some countries it is compulsory to wear an homologated
buoyancy aid permanently.
For the essential or optional equipment (engine, electronics
etc.) refer to their respective manual delivered with your boat.
Keep this manual in a safe place and hand it over to the new
owner if you sell your boat.

CONTENTS
UPDATE 10/2010 - INDEX C
3
Chapter Page
Using your boat
Construction and equipment
1 Navigation................................................................................................................................ 5
2 Winter Storage....................................................................................................................... 23
3 Launching .............................................................................................................................. 27
4 Hull & Deck ............................................................................................................................ 35
5 Interior.................................................................................................................................... 43
6 Electricity ............................................................................................................................... 53
7 Plumbing................................................................................................................................ 65
8 Engine .................................................................................................................................... 77
9 Rigging and Sails .................................................................................................................. 87
10 Safety ..................................................................................................................................... 99
11 General specifications........................................................................................................111
Personal notes

5
GETTING UNDER WAY ................................................. 7
VISIBILITY IN NAVIGATION .......................................... 7
NAVIGATION UNDER MOTOR ....................................... 9
NAVIGATION UNDER SAIL ......................................... 11
MOORING ................................................................... 17
TOWING ...................................................................... 17
ANCHORING ............................................................... 17
DAVIT (OPTIONAL) ..................................................... 21
ENVIRONMENT ........................................................... 21
Navigation 1

LAGOON 400
NAVIGATION
6
SLIDING HATCH
PORT CABIN -
FOOTBOARD
1. Battery switch "common
negative"
2. Battery breaker - "positive
terminal - engine" - To port
3. Battery switch "service po-
sitive"
STARBOARD CABIN -
FOOTBOARD
4. Battery switch of negative
terminal - Starboard engi-
ne
5. Battery breaker - "positive
terminal - engine" - To star-
board
6. Battery switch - Coupling
FUEL SUPPLY VALVE
(located directly on the tanks)
1 - Saloon.
2 - Saloon.
3 - Galley.
4 - Cockpit.
SWITCH ENTRANCE
GETTING UNDER WAY

LAGOON 400
1
NAVIGATION
7
The sliding door locks in three different positions: closed, ajar (airing
position) and open.
A latch on the doorframe enables locking from inside the saloon.
Switch on the main power of the boat by activating the battery swit-
ches located in the port and starboard aft cabins,then activate the
different accessory switches on the electrical panel.
Check the charge rate of the batteries, the water level in the tanks
and the fuel level (see ELECTRICITY and MOTORIZATION chap-
ter).
Carry out the inventory of compulsory safety equipment and instruct
the crew concerning its location and operation.
The international regulations to prevent collision at sea (COLREG)
and the course regulations make mandatory a permanent and pro-
per surveillance and the respect of priority.
Make sure there is no other boat on your way.
The visibility from the steering station may be obstructed in the fol-
lowing conditions:
- Load and load distribution.
- Sea conditions, rain, spray, fog or darkness.
- Lights on inside the boat.
- Persons and removable equipments in the helmsman's field of vi-
sibility.
Getting under way
RECOMMENDATION
While sailing block the sliding door shut.
RECOMMENDATION
When entering the saloon be careful of the step leading
down into the port hull.
DANGER
Remember to disconnect the shore power supply before
casting off.
Visibility in navigation
NAVIGATION

LAGOON 400
NAVIGATION
8

LAGOON 400
1
NAVIGATION
9
Before starting the engine:
- Ensure that the fuel valves are open.
- Open the valves for the engine cooling systems. (See "Motorisa-
tion" chapter).
To start the engines, refer to the manufacturer's manual too.
• ENGINE STARTER
Turn on the battery switches located in the port and starboard aft ca-
bins.
- Disengage the reverse gear (it will make the acceleration possible
when in neutral).
Proceed in the following order:
- Start the port engine first.
- Then start the starboard engine.
After starting the engine check for cooling water running out of the
exhaust and observe the color of exhaust gases.
• BATTERY COUPLING
In the case of low engine battery power use the battery coupling
function by turning on the coupling handle located in the starboard
aft cabin.
Once the engines have been restarted make sure that the coupling
handle is turned back to its original position.
• NAVIGATION
When the engine is running, avoid making noise and chops near the
other users.
Respect speed limits.
Navigation under motor
WARNING
Never switch off or de-energize the electric system when the
engine is running.
NAVIGATION

LAGOON 400
NAVIGATION
10
CATAMARAN
Weight of vessel: 10 tons
d: distance between centre of buoyancy and
centre of gravity
SINGLE-HULL
Weight of vessel: 10 tons
RMmax: Weight of vessel x d
(RMmax: Righting moment Maximum)
RMmax Single-hull: 10 tons x 0,5 metres
: 5 tons.metres
RMmax Catamaran: 10 tons x 3 metres
: 30 tons.metres
Righting moment: 31.7Tm
RIGHTING MOMENT
Illustration showing the difference
between the righting moments of a
single-hull vesseland a catamaran
of 10m length.

LAGOON 400
1
NAVIGATION
11
•BEWARE
A catamaran presents 6 times greater heel resistance than a single-hull
vessel. In terms of ship design we speak of righting moment (multipli-
cation of the vessel's weight by the transverse distance between the
centre of gravity and the centre of flotation (or buoyancy)).
See illustration on previous page.
This fact has real consequences for the handling and sail-trimming of a
catamaran.
The fact that the boat will not heel over could conceal an excessive sail
surface area in use, which could be dangerous for the crew and the ves-
sel. It is therefore essential to constantly monitor the real wind speed
and to trim the sail surface area as a priority in accordance with this
speed.
These latter adjustments are valid in calm seas. In rough seas one
should take the precaution of reducing 10% earlier in terms of real wind
speed. Generally speaking, it is essential to constantly look to relieve
the vessel rather than to put it under stress.
One should always look for the sail angle of attack to be headed to the
apparent wind and the sails to be not over-trimmed so that the airflows
leaving the sail are parallel to each other, that is to say they do not crea-
te turbulence behind the sail.
Failure to follow the above recommendations can be dangerous for the
boat and the crew, and the manufacturer cannot be held responsible in
the event of an accident.
• CLOSE HAULED TRIMMING (between 75 and 50° to true wind)
Given wind force in apparent wind
- From 0 to 16 knots : full sail ; mainsail traveler 30 cm to windward of
center, mainsail trimmed with a slightly opened leech (boom cente-
red).
The Genoa jib is trimmed near the spreader,the Genoa traveler is pla-
ced so that the angle of the Genoa sheet forms a straight line with the
clew and the luff, at 40% of its height.
-
From 16 to 20 knots : full sail ; the mainsail traveler moves up to 60
cm to windward of center, mainsail trimmed with a slightly more open
leech (boom still in line: so the sheet will have to be slackened).
The Genoa traveler does not change position but adjust the sheet so
that the leech is 10 cm from the spreader.
-
From 20 to 26 knots : 1 Reef, full Genoa ; the mainsail traveler comes
back to 30 cm to windward of center.
The Genoa traveler does not change position but adjust the sheet so
that the leech is 20 cm from the spreader.
-
From 26 to 30 knots : 1 Reef, 75% of the Genoa ; the mainsail trave-
ler comes back to 60 cm to windward of center.
The Genoa traveler remains in place or moves slightly forward but it
is adjusted so that the leech forms a propeller, the upper part dumping
air out under strong gusts of wind.
-
From 30 to 36 knots : 2 Reef, 60% of the Genoa ; the mainsail trave-
ler returns to the 30 cm to windward of center, the boom is slackened
to fly 50 cm leeward.
The Genoa traveler is moved slightly forward, the adjustment remains
the same.
Navigation under sail
NAVIGATION

LAGOON 400
NAVIGATION
12
SAILS
SAILS SURFACE
Classical mainsail: 56 m².
1 Reef: 45 m².
2 Reef: 32.48 m².
3 Reef: 20.20 m².
Large gaff sail: 60.5 m².
1 Reef: 45 m².
2 Reef: 32.48 m².
3 Reef: 20.20 m².
Furling genoa: 28 m².
Reference 1: 21 m².
Reference 2: 16 m².

LAGOON 400
1
NAVIGATION
13
- From 36 to 45 knots : 2 Reef, 40% of the Genoa. The mainsail trave-
ler is dead center and the boom veers 1 meter to leeward.
The Genoa traveler moves forward slightly, the sheet is slackened to
open wide in strong wind conditions.
-
From 45 to 55 knots : 3 Reefs alone (either storm sail or lie to), trave-
ler in the center,mainsail out by 1 meter.
The boat will be more at ease scudding in this weather.
-
Over 55 knots : lie to, drag anchor or, preferably, scud bare poles.
• CLOSED REACHED TRIMMING (between 75 and 130° to true
wind)
-
From 0 to 23 knots : full sail ; the traveler is positioned between 1 me-
ter from centre up to windward of center, depending on the wind an-
gle, the sheet is slackened so that boom is veering out anything from
50 cm in calm weather to 2 meters when the wind is forcing.
In every case no more than one batten should be allowed to chafe at
the shroud at the fastest speeds.
The Genoa jib is slackened so that its average attack angle is head on
to the apparent wind.
-
From 23 to 28 knots : 1 Reef, full Genoa. The adjustments are iden-
tical.
-
From 28 to 33 knots : 2 Reef, 80% of the Genoa. The adjustments are
identical.
-
From 33 to 38 knots : 2 Reef, 60% of the Genoa. The adjustments are
identical.
-
From 38 to 45 knots : 3 Reef (or mainsail lowered and a little more
Genoa), 40% of the Genoa. The adjustments are identical.
-
From 45 to 55 knots : mainsail lowered, 40 to 30% of the Genoa, suf-
ficiently trimmed so as not to flap.
-
Over 55 knots : scudding,depending on the sea conditions the moo-
ring lines can be looped round behind the vessel and attached on the
opposite side to act as a brake.
These indications are given for your information only and are depen-
dant on outside conditions.
WARNING
Your boat is designed to sail without the need to climb onto
the roof for any maneuvers.
It is dangerous to climb or stay on the roof particularly in the
event of gibing.
Keep children under close supervision.
RECOMMENDATION
Under sail put all engine controls in neutral to avoid any da-
mage to engines (with fixed or folding propellers).
DANGER
Any different setting of these recommendations may result
in breakage of the mast. In particular, the 100% genoa with
2 reef in the mainsail is prohibited absolutely.
NAVIGATION

LAGOON 400
NAVIGATION
14

LAGOON 400
1
NAVIGATION
15
• REDUCING SAIL
The boat is fitted with 3 reefs.
Reefs n°1 and n°2 are automatic, n°3 is traditional.
The luff eyelet of reef n°3 is fitted with a strap with a snap shackle to clip
on to the eye bolt on the boom.
Putting in reefs n°1 and n°2:
1 - Head the boat into the wind.
2 - Pull tight the topping lift.
3 - Slacken the mainsail sheet.
4 - Slacken the mainsail halyard and then trim reef line n°1 or n°2, as
needed, until the reefing blocks which correspond to the luff and the
mainsail leech are a few centimeters from the boom.
5 - Close the line cam cleat of the respective reef.
6 - Hoist taut the mainsail halyard.
7 - Slacken the topping lift and take in the mainsail sheet.
Follow the lowering and raising of the sail with the help of the head
downhaul.
Putting in reef n°3:
Repeat steps 1 to 3 as before, then:
4- Slacken the mainsail halyard then trim reef line n°3 until the mainsail
leech block is a few centimeters away from the boom.
- Clip the snap shackle on the luff eyelet of reef n°3 onto the eye bolt
located on the boom.
- Take up the slack in the lines of reefs n°1 and 2.
- Repeat steps 5 to 7 as before.
Refer to the running rigging diagram (chapter on RIGGING AND
SAILS) for identification of ropes.
• NAVIGATION WIND ASTERN
- Do not fall off more than 150° to the apparent wind.
- Put the traveler out as far as possible and slacken the sheet slightly.
- Make sure the mainsail does not touch the shrouds ; the rubbing of the
battens will wear the material and cable very rapidly.
- Keep mainsail + solent up to 15 knots speed and put in one reef or
more if the accelerations are sudden and strong or if sea conditions
deteriorate.
RECOMMENDATION
For safety, the reef line used should always stay on the
winch with 3 turns around the drum.
Re-close the cam cleat for greater safety.
NAVIGATION

LAGOON 400
NAVIGATION
16
1 - Midship cleat for towing. 3 - Swimming ladder.
2 - Mooring cleats (Jack-lines to be fixed to the mooring cleats). 4 - Crown buoy location .









DECK LAYOUT

LAGOON 400
1
NAVIGATION
17
A sufficient number of mooring lines suitably sized and suitable for
the environment shall be on board for mooring your boat.
- Always manoeuvre your boat using the engine.
- Make allowance for the current and wind when you handle your
boat.
- Protect your boat to the highest degree with suitably sized fenders.
- Always keep the mooring ropes unfouled and stored away.
- Handle your boat at a reduced speed.
AFTER MOORING
- Protect the mooring lines against chafing with plastic sleeves.
- Make allowance for the variations in tides if need be.
TOWING BOAT
- Tow another boat at a reduced speed and as smoothly as you can.
- Pay particular attention when you throw or catch the towing rope
(it may foul on the propeller).
NOTE: The stability may be reduced when you tow a boat.
TOWED BOAT
- Keep steering your boat and see to it that you stay in the wake of
the towing boat.
As a rule, set the anchor in at least 3 times the depth of water.
• PREPARATION OF ANCHORING (Illustrations following page)
- Install the bridle by fixing it to the chain plates located at the ends
of the fore beam.
- Put the bridle through the stem bow roller.
- Shackle the bridle to the central cleat during the lowering of the
chain.
• MANUAL ANCHORING
- Have your boat pointed into the wind and without speed.
- Release the brake on the chain lifter.
- Pay out the chain while moving back slowly.
- Secure the anchor chain on the bridle.
- Lead out the chain until the guy becomes taut.
Mooring
DANGER
Don't try to stop the boat with your foot, your hand or a boat
hook.
Towing
Anchoring
RECOMMENDATION
Before anchoring check the depth of water, the power of the
current and the nature of the sea bed.
NAVIGATION

LAGOON 400
NAVIGATION
18 ATTACH THE BRIDLE TO THE
FORWARD BEAM
BRIDLE REMOTE CONTROL
OPERATION RELAY
Lay out of: Cockpit bench seat
WINDLASS 12V 1000W
Chain lifter 10mm diameter
WINDLASS CIRCUIT BREAKER -
100A
Port aft cabin
ANCHORING