Distributed by

Any reference to Raytheon or RTN in this manual should be

interpreted as Raymarine. The names Raytheon and RTN

are owned by the Raytheon Company.

Installation & Operating Handbook

Nautech Limiied, Anchorage Park, PortsmouthHampshire, PO3 STO, England.

Telephone (0705) 693611, Telex 86384 NAUTEC G.

CONTENTS

1. General Description1.1.1 Course Computer1.1.2 Control Unit1.1.3 Fluxgate Compass1 .1.4 RuddepReference Transducer1.1.5 Auxiliary Alarm1 .1.6 Radio Navigation Interface1.2 Hydraulic Drive Units1.2.1 Type 0 Hydraulic Drive1.2.2 Type 1 Hydraulic Drive

2. Installation2.1 .l Course Computer2.1.2 Control Units and Radio

Navigation Interface2.1.3 Fluxgate Compass2.1.4 Rudder Reference Transducer2.1.5 Accessories2.2 Hydraulic Drive Unit2.2.1 Type 0 Installation2.2.2 Type 1 Installation2 .3 Cabling and Power Supplies2.3.1 Signal Cabling2.3.2 DC Power Supplies

3. Operation3 .1 Basic Principles3 .2 Controls3.2.1 Fixed Control Unit3.2.2 Hand Held Control Unit3.2.3 Operating Mode Indication

and Course Display3.2.4 Off-Course Alarm3.3 Functional Test Procedures3.3.1 Setting Up3.3.2 Functional Test Procedure3.3.3 Drive Unit Test Procedures

4 . Sea Trials4.1 First Sea Trials4 .2 Rudder Control Adjustment

5. Operating Hints5 .1 Unsatisfactory Steering

Performance

Page2 6 .33 7 .34 8 .445 9 .55 10.

67

79

101 11213131 41 41 5

1 71 7181819

202121212122

23232 4

25

25

Maintenance 26

Fault Location Procedure 27

Warranty, After SalesService 28

U.K. Service Centres 30

Overseas Representatives 31

1. GENERAL DESCRIPTION

Congratulations on choosing theAutohelm PowerPilot. It offersoutstanding self steering capability for awide range of modern powercraftequipped with hydraulic steering.

The PowerPilot uses microprocessorbased technology and easy to use controlpads to give you total command underautopilot control without the need forconstant adjustments.

The PotierPilot is manufactured by theworld’s largest producer of Marineautopilots with Technical Advice, Serviceand Support ready to help you get themost from your Autohelm.

The PowerPilot is modular and designedfor easy installation with flexibility to copewith the variation of individual craft andowner specifications. It is supplied asstandard with the course computer, onecontrol unit, fluxgate compass, hydraulicdrive unit, and rudder referencetransducer. The basic AutohelmPowerPilot can be extended to suitindividual requirements. The basic systemis illustrated below in Figure 1.

1.1 .l Course ComputerThe course computer houses themicroprocessor, electronic control circuitryand power amplifier to drive the hydraulicpump.

The course computer is splash proofonly and must be mounted in a dry andprotected position.

I288mm (11.4in)

FLUX GATE

Fig. 1 BASIC SYSTEM

1 .1.2 Control UnitThe six button control unit is fullywaterproof and is mounted close to thesteering position. It is designed for surfacemounting, or alternatively can be bracketmounted if required (bracket mounting kitCat. No. D105).

A second control unit (Cat. No. 2054)and a hand held control unit (Cat. No.2056) can be added to the system. Thehand held control unit is fitted with a 6m(19ft) wander lead and plugs into abulkhead mounted waterproof socket. II

1.1.3 Fluxgate CompassThe fluxgate compass has been especiallydeveloped for marine application. Thecompass contains a gimbal mechanism topermit accurate readings with pitch androll movements up to t40°. The compassis bulkhead mounted below decks andconnects directly to the course computer.

92mm (3.6in)

z””

2 3

1.1.4 Rudder ReferenceTransducerThe rudder reference transducer providesthe course computer with a preciserudder position. It is mounted on asuitable base adjacent to the rudderstock. The interconnecting cable connectsdirectly to the course computer connectorunit.

213mm (8.37in)

-182Smm (3.2%)

1.1.5 Auxiliary Alarm (Cat. No. 2035)The autopilot is provided with anautomatic off course alarm system whichsounds from all control units and providessufficient audible warning under mostconditions. In cases where a high poweralarm is necessary, an auxiliary alarm canbe fitted. The auxiliary alarm is connectedto the main connector unit via a twocore cable.

1.1.6 Radio Navigation Interface(Cat. No. 2057)The PowerPilot can be interfaced to anyLoran, Decca or Satellite Navigationreceiver having a suitable cross track erroroutput to NMEA0180/0182/0183. Theradio navigation interface computes thecourse adjustments to enable thePowerPilot to steer to a selected waypoint.

The unit is waterproof and designed forsurface mounting (normally adjacent tothe Loran/Satellite Navigation receiver). Ifrequired the unit can be bracket mountedusing the bracket mounting kit(Cat. No. D104).

1.2 HYDRAULIC DRIVE UNITSThe PowerPilot is available with one oftwo hydraulic drive units, depending onthe size of the vessel and thedisplacement of the ram.

The vessel size and displacementrecommendations given below apply todirectly driven steering systems. When apower steering system is fitted the vesselsize and displacement recommendationscan be ignored.

1.2.1 Type 0 Hydraulic DriveThe type 0 hydraulic drive unit consists ofa twin cylinder piston pump powered by asmall but powerful reversing electricmotor.

The high volumetric efficiency of thepiston pump provides precise control,with the twin pistons offering smootherand quieter operation than would befound with a single cylinder design.

Descriotion S i z e

Maximum Vessel Size 8m (26ft)

Maximum VesselDisplacement 3000 Kq (6600 Ibs)

Maximum Ram Capacity

Minimum Ram Capacity

13Occ (8.0ina)

5Occ (3in’)

Regulated Peak Pressure 30 bar (450lb in?)

Peak Flow Rate (Unloaded) 4 9 0 c d m i n (30inYmin1

Power Consumption(Typical Averaqe) 1 . 5 - 2 . 5 amps

km Type Double Ended (Balanced)

1.2.2 Type 1 Hydraulic DriveThe hydraulic drive unit consists of aprecision gear pump with integral valveblock driven by a continuously rated servomotor. The pump drive motor is connecteddirectly to the course computer which alsoregulates peak pump pressure andeliminates the need for end stroke limitswitches.

Description S i z e

Maximum Vessel Size 1 lm (36f~)

Maximum VesselDisplacement 5500 Kg (12000 Ibs)

Maximum Ram Caoacitv 23Occ (14in’)

Minimum Ram Capacity

Reaulated Peak Pressure

13Occ (8inj)

50 bar (75ODs.i)

Peak Flow Rate(Unloaded)

11 OOcdmin)(67inYmin

Poher Consumption(Typical Average)

Ram Type

3 . 5 - 6 a m p s

Single or Double Ended(unbalanced or balanced)

I- 190mm (7.5in)w

4

2. INSTALMTION

WARNING professionally or alternatively professionalThe Autohelm PowerPilot requires correct advice be obtained if you intend to installinstallation if it is to provide accurate safe the system yourself.self steering. Whilst designed for simple The manufacturers can accept noinstallation we strongly recommend that liability for any claims arising fromthe system should be installed incorrect installation or product useage.

2.1.1 Course ComputerMounting Position - Below DeckThe course computer should be positionedin a dry protected area of the vessel freefrom high operating temperatures andexcessive vibration. It can be mounted inany attitude. Care must be taken to allowat least 15mm (6in) clearance all round toaid heat dissipation from the poweramplifier in the unit. Do not mount in theengine room.

DO NOT position the course computerso that it will:l Receive any direct water splash/spray

(from Bilge/Hatch etc).l Be liable to physical damage from heavy

items.0 Be covered by other equipment or

onboard gear.l Be close to major sources of

transmitted energy (Generators/S%radios, Aerial Cables etc).

M o u n t i n g I n s t r u c t i o n sl Remove Terminal box lid (Fig. 2).l Unscrew two internal thumb retaining

nuts (Fig. 2).l Unplug terminal box and mounting

spine.l Position terminal box and mounting

spine in correct location, mark off andpilot drill for the 5 self tapping screwssupplied (Fig. 3).

l Screw terminal box and mounting spineinto place.

l Plug course computer unit to terminalbox. Retighten thumb retaining screws.

The course computer is now ready forwiring (see 2.3).

2.1.2 Control UnitsMounting Position - Control units mustbe mounted close to the steering stations.The unit is fully water-proof and suitablefor external location. If the control unit ispermanently exposed when the boat is not

in use we strongly recommend the use of aprotective cover (optional extraCat. No. DlOl).

WARNINGSafe operation of the PowerPilot requiresthat the control unit be mounted withineasy reach of the helmsman when in thenormal steering position. Position thecontrol unit to ensure this requirement ismet .

M o u n t i n g I n s t r u c t i o n sThe unit is attached with reusable positivelocking pads. In most cases, the pads maybe stuck directly onto the mountingsurface.l Using the template supplied, select the

control unit position, mark off and drillthe 17mm (5/8in) hole for theinterconnect cable.

l Attach the positive-lock pads to the rearof the control unit (Fig. 4).

l Thoroughly clean the mounting surfacewith alcohol (or equivalent) and allowto dry.

7

l Thread the interconnect cable throughthe 17mm (518in) hole, peel off thebacking from the pads (Fig. 5).

l Press the unit onto the mountingsurface maintaining pressure for 30seconds to ensure a strong bond.

The control unit interconnect cable isnow ready for connection to the coursecomputer (See 2.3).

Where the control unit is to be mountedto a painted, varnished or untreated woodsurface the carriers supplied should beused to provide a sound bonding surfacefor the mounting pads. (Fig. 6).

Instructionsl Using the template supplied mark off

and drill the 17mm (518in) hole andmark off and pilot drill the fixing holesfor the carriers.

l Screw the holders inio position usingthe self tapping screwS provided.

l Clean the holder surface with alcohol(oiequivalent) and stick the positivelock pads into place (Fig. 6).

l Note An additional foam seal must beused in this method to provide sealing.

l Carefully align the control unit with theholders and press firmly into place tosecure a positive attachment.

Removing a Control Unitl Using a flat lever gently unlock the

securing pads starting at one corner.l Do not use excessive force.0 The unit may be re-attached by

pressing it’back onto the security pads.

2.1.3 Fluxgate CompassThe fluxgate compass may be attached toa convenient bulkhead using the selftapping screws provided. Unscrew the topcap to release the compass housing fromthe mounting bracket (Fig. 7). Screw thebracket to the bulkhead using the selftapping screws provided and finally re-attach’the compass body to the mountingbracket.

Correct positioning of the fluxgate iscrucial if ultimate performance from theautopilot installation is to be achieved.The fluxgate should ideally be positionedas near as possible to the pitch and rollcentre of the vessel in order to minimisegimbal disturbance (Fig. 8).

Fig. 7

Fig. 6

8

It is very important to ensure that thefluxgate is positioned at least 0.8m(2ft6in) away from the vessel’s steeringcompass in order to avoid deviation ofboth compasses. The fluxgate must alsobe positioned as far away as possible fromlarge iron masses, such as the engine andother magnetic devices which may causedeviation and reduce the sensitivity of thesensor. If any doubt exists over magneticsuitability of the chosen site, the positionmay be surveyed using a simple handbearing compass. The hand bearingcompass should be fixed in the chosenposition and the vessel swung through360°. Relative differences in readingbetween the hand bearing compass andthe vessel’s main steering compass shouldideally not exceed 5O on any heading.

Fig. 8

.0.3c to 0.5L -I I

.L +i

When the installation is complete thefluxgate compass should beapproximately aligned with the vessel’scentre line by rotating the body until thearrows on the joint line face the bows(Fig. 9).

9

the rudder reference unit arm and tiller

F ig . 9arm. If it is more convenient, the rudderreference unit may be mounted upsidedown (label downwards), but if this isdone, the red and green wires must bereversed in the connector unit.

It is important to ensure thatdimensions A and B (fig. 11) are the sameat both points and that when the rudderis amidships the unit arm is opposite thecable gland and makes an angle of 90°with the connecting bar.

Fig. 11 B

Installation PrecautionsCorrect installation of the coursecomputer and fluxgate compass is vital tothe successful performance of the

y-

I . r-lAutohelm Pow&Pilot. The installation A

I I

A

precautions must be heeded if poor /performance or even failure of theautopilot is to be avoided.

2.1.4 Rudder ReferenceTransducerThe rudder reference unit must bemounted on a suitable base adjacent tothe rudder stock (Fig. 10) using the selftapping screws provided. The base heightmust ensure correct vertical alignment of

Fig. 10

TILLER 8 e - 400AR,M I

IHaving selected a suitable position

(Fig. lo), the interconnecting link A maybe cut to length and the linkage fastenedensuring that the locking nuts B aresecure. The tiller arm should be tappedM6 to a depth of 2Omm (13/l 6in) orthrough drilled to accept the ball jointsupplied. The rudder should then bemoved from side to side to ensure thelinkage is free from any obstruction,

2.1.5 AccessoriesThe most comprehensive installation is ”illustrated below in Fioure 12.

RADIO NAVIGATIONINTERFACE

Fig. 12 FLUX GATE-

CONTROL fle =c5

R U D D E R

HYDRAULICDRIVE UNIT

Radio Navigation Interface(Cat. No. 2057)This is installed using the same procedureas given for the control unit. (See 2.1.2).

R e m o t e C o n t r o l U n i tThe remote control socket is pre-wiredwith the interconnecting cable. A 22mm(7/8in) diameter hole should be boredthrough the mounting panel and thesocket screwed into position using thefour self tapping screws provided (Fig. 13).

Auxiliary Alarm (Cat. No. 2035)The auxiliary alarm unit is waterproof andmay therefore be mounted in anyposition. The alarm unit is supplied with aterminal block to connect a two coreinterconnection cable to the coursecomputer. A 22mm (718in) hole should.bebored through the mounting panel/deckto pass through the two way connectorblock and interconnecting cable (Fig. 14).

Finally, the alarm unit should bescrewed into position using the four selftapping screws provided. A foam seal onthe alarm mounting flange will ensure awatertight joint to the mounting surface.

Fig. 14

11

2.2 HYDRAULIC DRIVE UNITGeneral guidelinesThe hydraulic drive unit should bemounted clear of spray and the possibilityof immersion in water. It should belocated as near as possible to thehydraulic steering cylinder. It is importantto bolt the hydraulic drive unit securely toa substantial member to avoid anypossibility of vibration that could damagethe inter-connecting pipework.

There are three basic types of hydraulicsteering system, and these are illustratedin Fig. 15. Typical connection points forthe drive unit are shown in each case. Inall cases it is strongly recommended thatthe steering gear manufacturer beconsulted.

Minimisation of hydraulic fluid lossduring connection of the drive unit willhelp to reduce the time and effortrequired later to bleed the system oftrapped air. Absolute cleanliness isessential since even the smallest particleof foreign matter could interfere with thecorrect function of precision check valvesin the steering system.

Fig. 15

When the installation has beencompleted the hydraulic pump may beoperated by switching the control unit toAuto and operating the + 10” and - 10’course change buttons. Greater motormovements will be obtained if the ruddercontrol is set to maximum.

The hydraulic steering system should bebled according to the manufacturer’sinstructions. From time to time during thebleeding process the drive unit should berun in both directions to clear trapped airfrom the pump and inter-connecting pipework.

If the air is left in the system thesteering will feel spongy particularly whenthe wheel is rotated to the hardoverposition. Trapped air will severely impaircorrect operation of the autopilot and thesteering system and must be removed.

During the installation of the system ithas not been necessary to keep track ofthe connection sense to the hydraulicsteering circuit since operating sense ofthe autopilot can be corrected if necessaryby reversing the pobrity of the pump drivemotor connections (see section 3.3.1).

%

T.40 Line: System

RESERVOIR

r(

2.2.1 Type 0 InstallationThe Type 0 pump must be mountedvertically with the mounting flange boltedto a suitable horizontal surface using four6mm (114in) bolts.

All ports are tapped 1/8in B.S.P. Three1/8in B.S.P. to 1/4in N.PT. adaptors areincluded to convert to N.PT. whererequired. The sealing washers suppliedshould be placed between the fitting andthe pump (Fig. 16).

It is recommended that 1/4in fittings orlarger are used throughout to minimisetransmission losses.

Fig. 16 ’

STEERINGCYLINDER PORTS

l/h B.S.P.SEALING

The two cylinder ports are positionedopposite one another on the pump body.The reservoir port is marked R and is at45“. All connections to the pump shouldbe made with flexible hose.

Important NoteAll connections in the reservoir linemust be sound as any air introducedto this line will seriously degradep u m p p e r f o r m a n c e .

B l e e d i n gThe type 0 pump is sensitive to trappedair, and care must be taken duringinstallation and commissioning to removeit. Before connecting the hoses to thepump:

l Ensure all hoses are filled with oill Prime the pump ports with oil

When operating the hydraulic pump tobleed the system, turn the helm pump inopposition. This will help any air expelledfrom the hydraulic pump rise to the helmpump reservoir.

2.2.2 Type 1 InstallationThe Type 1 pump should be mounted on asuitable horizontal surface.

All ports are tapped 1/4in B.S.P. Three114in B.S.P. to 114in N.PT. adaptors areincluded to convert to N.PT. whererequired (Fig. 17). The sealing washerssupplied should be placed between thefitting and the pump (Fig. 18).

Fig. 17

l/din N.P.T. FirriNG

N.PT. ADAPTOR

SEALING WASHER

.

I

2.3 CABLING AND POWERSUPPLIES2.3.1 Signal CablingCable interconnections between all subsystem modules are shown schematically(in Figs 1 and 12). All peripheral units

connect to the connector unit where theyare permanently hard wired to colourcoded connector blocks situated on acentral printed circuit board (Fig. 19).

The end face of the connector unit isfitted with ten blanking discs (Fig. 20).which are easily pressed out and replacedby the special rubber grommets suppliedwith each peripheral unit fixing kit_ , _

/T Fig. 21

-----T 40mm

KEY0 WHlTE0 YELLOW0 GREEN@ R E De BROWN

(Fig. 2 1). After cutting theinterconnecting cable to length (Fig. 21),it may be passed through the insertedrubber grommet and prepared forconnection to the relevant connectorblock (Fig. 19).

Each connector block is clearlyidentified on the printed circuit board andeach wire position is identified bycoloured dots which match the individualwire colours. The cable screen should beconnected to terminals identified by awhite dot.

Each peripheral unit is supplied with 6m(20ft) of interconnecting cable. Additionalcabling can be supplied in 12m (4Oft) cutlengths as follows:-

Cat. No. Used On

DO06(Two core unscreened)

Alarm, Electronicpower supply andClutch

DO87flhree core screened)

Control units, andRadio NavigationInterface

DO88(Four core screened)

Fluxgate Compass

The total length of screened core cableconnected to the serial bus (connectorsAl -A5) should not exceed 30m (1 OOft).Similarly, the total length ofinterconnecting cable to the fluxgateshould not exceed 2Om (60ft). If it isnecessary to exceed the above maximumlength recommendations, please consultNautech’s Product Support Departmentfor specific advice. In general the lengthof interconnecting cables should be keptto an absolute minimum to reduce thepossibility of interference by otherelectronic equipment.

All cables should be run at least 1 m(3ft) from existing cables carrying radiofrequency or pulsed signals, and shouldbe clamped at 0.5m (1 .Sft) intervals.

2.3.2 DC Power Supplies(Fig. 22).Flexible connection tails fitted withinsulated spade connectors are SUpplicd

with the course computer to connect ttlemain power supply (Blue and Brown) anddrive unit motor connections (Red a111jBlack).

All four flexible wire tails arepreconnected to a four-way heavy dutyterminal block for connection to the mainpower cabling. Similarly, the drive Ullil iS

supplied with flexible tails for the motorpower connection (Red and Black).

Before commencing power cabling, allinterconnecting terminal blocks should bescrewed into a position where they willremain dry and protected. When pl,~nningthe position of the course computer(ref.2.1.1). it is important to reduce theoverall length of heavy power cablebetween the drive unit and the vessel’scentral power distribution panel to aminimum.

Excessive lengths will generate losses inthe cable and will reduce systemperformance. In addition, the cable lengthbetween the course computer and driveunit must be less than 5m (16ft).

Having sited the course computer,measure the total cable length betweenthe drive unit and the vessel’s centraldistribution panel and select theappropriate cable size from the tablebelow.

Total Cable CopperCable

CableType Area

LengthGauge

Up to 7m 5010.25 2.5mm’ 14 f’!J’srG

Up to 1 Om 5610.3 4.0mmz 12 AV’&

Up to 16m 8410.3 6.0mml lOAWG

3. OPERATION

The power supply must be led from themain distribution panel and protected bymeans of a 25 amp fuse or currentoverload trip switch. A separate 5 ampfuse must be fitted in the electronicpower supply cable.

Fig. 22

It is very important that both theelectronic and heavy duty power suppliesare isolated by a switch in the positivesupply line.

When connecting the power supplies tothe main distribution panel and to the 1course computer spade connectors, it isessential that the polarity is correct(Brown positive, Blue negative). J

ELECTRONICP O W E RS U P P L Y

CIRCUIT BREAKER25AMP- 12V

H E A V Y DUTYP O W E R S U P P L Y

OUTPUTTO MOTOR

3.1 BASIC PRINCIPLESThe following description of theAutohelm PowerPilot’s principle ofoperation will help you to fully understandits controls.

Deviation from course is continuouslymonitored by a sensitive fluxgate compassand corrective rudder is applied by thedrive unit to return the vessel to course.The applied rudder is proportional tocourse error at any time and thus whenthe course is restored the rudder will beneutralised. The amount of rudderapplied for a given off-course error mustmatch both the steering characteristics ofthe vessel and speed through the water. Avessel with a small rudder for example,will require more corrective helm than asimilar sized vessel with a larger rudder.Similarly, a high speed power boat willrequire considerably less corrective helmat planing speeds than it will at lowerdisplacement speeds.

When changes in vessel trim occur dueto variations in wind pressure or enginethrottle setting the course can only bemaintained by the application ofpermanent rudder.off-set (standing helm)to restore balance. If permanent rudderoff-set is not applied to restore balancethe vessel will bear on to a new heading.Under these circumstances the AutohelmPowerPilot detects that the original courseis not being restoredand continues toapply additional rudder off-set in theappropriate direction until the vesselreturns to the original heading. Automatictrimming capability ensures that theoriginally set course is held irrespective ofany changes in balance that may occurduring the course of a passage.

Autohelm PowerPilot’s centralcomputer also continuously monitors thepattern of applied rudder correction andcan distinguish unnecessary repetitivecorrections caused by pitch and roll of the

vessel from those necessary to maintainthe selected heading. If unnecessaryrepetitive corrections continue thecomputer will automatically neglect themso that autopilot activity and powerconsumption is continuously optimised atminimum levels.

The high degree of control automationmade possible by the system’s centralmicro computer simplifies user control toa series of push button operations.

16 1 7

3.2.3 Operating Mode indicationand Course DisplayThe operat ing mode of the autopi lot isindicated by a flashing red LED, assummarised below:-

OPERATING MODE

STAND BYAutopilot switched on butnot engaged

LED FLASHING CODE

)j y?J f$j

AU-t-0Autopi lot engaged to steercompass heading

MANUALHand held control powersteering in operation

~~@j~fzJjj@

ii@ ON 0 OFF SECONDS ’ ! : : : : L;

20

3.2.4 Off-Course AlarmWhen the autopilot is set to Auto mode abuil t in off-course alarm is automatical lyset up. The off-course alarm will soundfrom all control units when the vesseldeviates for any reason from the originalcourse by more than 15“ for over 20seconds. If an auxiliary alarm is fitted thiswil l also be sounded after a one minutedelay to allow the watchkeeper to takecorrective action.

The alarm will be silenced if the vesselreturns to within 1 So of the originalcourse. If the vessel does not return withincourse l imits the alarm can only besi lenced by disengaging the autopi lot andresetting a new course.

3.3 FUNCTIONAL TESTPROCEDURESThe following functional tests and set upprocedures must be carried out beforesea trials are attempted.

3.3.1 Setting UpSwitch OnSwitch on the electrical supply from themain panel. All control units will emit ashort beep tone to indicate that thecomputer is now active. The autopilot wil lstart up in Stand By mode.

Operating SenseThe operating sense of the autopilot canbe checked as follows:-* Select Autol Select + 10 which should move the

rudder a few degrees to produce a turnto starboard.

If this does not occur, correct operatingsense can be restored as follows:-* If the rudder immediately drives hard

over to starboard, the red and greenwires of the rudder referencetransducer should be reversed in theconnector unit.

l If the rudder immediately drives hardover to port, the motor connectionsbetween the course computer anddrive unit should be reversed.

l If the rudder drives a few degrees toport, reverse the motor connections,and reverse the red and green wires ofthe rudder reference transducer.

N.B. Reversal of the motor connectionsshould be permanently made at one ofthe main terminal blocks and not byreversing the spade connector f lying leadsto the course computer.

3.3.2 Functional Test Procedurel Switch on and note that all control

units are l ive and signal l ing Stand bymode.

0 Key Auto on any fixed control unit andnote that Auto mode is indicated onall control units.

l Key course change commands from allcontrol units noting thatcorresponding helm movements occur.

0 Key Manual on the hand held controlunit (if fitted) and note that Manualmode is signalled from all control units.

l Key power steer commands via thecourse control keys of the hand heldcontrol unit and note thatcorresponding incremental helmmovements occur.

l Key Stand by

The automatic trimming capability ofthe autopilot can be observed by thefollowing test:

Key Auto followed by a 1 O” coursechange to starboard. This effectivelysimulates a condition where the need forstanding helm has developed and thevessel is not returning to course. You willnotice that an initial fixed helm movementis applied and that after a short intervalthe drive unit will continue to applyfurther incremental helm movements. If

21

left in this condition the rudder willeventually be driven hard over. If, however,the vessel were moving through thewater, the progressive application ofadditional helm would eventually returnthe vessel to the correct course with thenecessary standing helm applied. Returnto course can be simulated by keying - 10(to return to the current heading). Theprogressive application of standing helmwill cease when the fluxgate senses thatthe course error has been removed.

3.3.3 Drive Unit Test ProceduresBefore attempting sea trials it is importantto check that the vital link with thesteering system provided by the hydraulicpump and rudder reference transducerare free from obstruction and operatingcorrectly.

WarningWhen the steering system is being movedmanually or under drive from theautopilot do not touch any part of thesystem. The forces exerted areconsiderable and could cause injury.

With an assistant to turn the mainsteering wheel get into a position wherethe tiller and rudder reference transducercan be seen.l With the autopilot in Stand by turn

the sheering wheel from hard over tohard over.

l Check that the rudder referencetransducer and linkage do not foul anypart of the steering mechanism orvessel’s structure.

0 Select Auto and use the + 10 buttonto drive the rudder hard over (use’maximum rudder setting).

l Use the - 10 button to drive therudder hard over in the oppositedirection.

22

l Check that the steering ram movessmoothly and that there is no excessiveplay.

0 Check that all unions are tight andthere is no seepage of hydraulic fluid.

Current Limit and CutoutWhen the rudder is driven onto end stopsdrive to the hydraulic pump may cut outafter a few seconds. This is normal. Drivewill only be restored if the rudder movesaway from the end stop or if drive isrequired in the opposite direction.

The performance of the AutohelmPowerPilot will only reach the designedlevels if the installation of the hydraulicpump and rudder reference transducer iscorrectly engineered and adjusted. It isstrongly advised that these be checkedbefore sea trials.

4. SEA TRIALS

Initial sea trials should be carried out incalm conditions with plenty of sea room.The previously conducted functional testwill have verified that the autopilot isoperating correctly and that you arefamiliar with all of its controls.

Set the rudder control on all controlunits to minimum.

Initial sea trials on fast planing vesselsshould be conducted at no more than halfengine speed. Minimum setting of therudder control should provide stablesteering performance.

Fine setting of the rudder control isdiscussed later (4.2).

4.1 FIRST SEA TRIALSDuring first sea trials, the vessel will beconstanfly changing heading, and it is,therefore, very important to maintain aconstant look-out. The following initialtrial procedure is recommended:-@ Steer on to a compass heading and

hold the course steady.0 Press Auto to lock on to the current

heading. In calm sea conditions aperfectly constant heading will bemaintained.

0 Alter course to port or starboard inmultiple increments of 1 and 10degrees from any control unit. Coursechanges should be prompt andwithout any sign of overshooting.

l If a hand held control unit is fitted keyManual to change over to remotepower steering. Practice powersteering using the four course controlkeys..

0 Press Stand by to disengage theautopilot for return to hand steering.

Automatic Sea State ControlDuring the sea trial, the operation of theautomatic sea state control can beobserved. When the autopilot is initiallyengaged in Auto mode the autopilot willrespond to all pitch and roll movements.

During the first minute of operation, it willbe noticed that repetitive movements ofthe vessel are gradually neglected untilfinally the autopilot will respond only totrue variations in course.

To ensure precise course adjustmentsthe sea state control is automatically resetwhenever a 1 O0 course change isselected.

Automatic Trim ControlThe Autohelm PowerPilot automaticallycorrects for trim. No adjustment of thepilot is necessary.

After each course change theAutomatic Trim is cancelled and theAutohelm PowerPilot will re-establish thecorrect trim for the new heading. Thisprocess takes approximately one secondper degree of course change. It should benoted that if a large course change iskeyed in (greater than 60°) the pilot willnot assume the final selected courseimmediately. The vessel will come towithin say 10” of the desired course andwill only settle onto course when theAutomatic Trim has been fully established.

It is recommended the followingprocedure is adopted for large coursechanges.l Note required new headingl Select Stand by and steer manuallyl Bring vessel onto new heading0 Select Auto and let vessel settle onto

coursel Bring to final course with 1 0

increments.It is sound seamanship to make major

course changes only whilst steeringmanually. In this way any obstructions orother vessels may be cleared properly anddue account taken of the changed windand sea conditions on.the new headingprior to engaging the pilot.

23

4.2 RUDDER CONTROLADJUSTMENTThe rudder control setting recommendedon page 22 will provide stable control forinitial sea trials. However, power craft canvary widely in their response to the helmand further adjustment of the ruddercontrol setting may improve theAutohelm’s steering characteristics.

An excessively high rudder controlsetting results in oversteer which can berecognised by the vessel swinging fromside to side of the automatic headingaccompanied by excessive ruddermovement. In addition, distinct overshootwill be observed when the course ischanged. This condition can be correctedby reducing the rudder control setting(rotating rudder control anticlockwise).

Similarly, an insufficient rudder controlsetting results in understeer which givessluggish steering performance and isparticularly apparent when’changingcourse. This is corrected by increasing therudder control setting (rotating ruddercontrol clockwise). These tendencies aremost easily recognised in calm seaconditions where wave action does notmask basic steering performance. Therudder control setting is not over criticaland should be set to the lowest settingconsistent with accurate course keeping.This will minimise actuator movementsand hence reduce power consumption.

It may be noticed that the autopilottends to be a little less stable on northerlyheadings in the higher latitudes of thenorthern hemisphere (and converse!ysoutherly headings in the southernhemisphere). This is caused by theincreasing angle of dip of the earth’smagnetic field at higher latitudes whichhas the effect of amplifying rudderresponse on northerly. headings. Thetendency towards northerly headinginstability is usually more .obvious in

24

higher speed craft and when it occurs canbe corrected by reducing the ruddercontrol setting. In excess of 30 knots, areduction by at least two positions canoften be required within 45“ of North.

Planing CraftOn fast planing craft which operate over awide speed range, the rudder controlsetting often requires reduction at higherspeeds where steering effectiveness isincreased. Oversteer can be extremelyviolent at planing speeds and it isrecommended that the rudder controlsetting is reduced before opening thethrottle.

5. OPERATING HINTS

Autohelm PowerPilot’s central coursecomputer continuously optimisesautomatic steering performanceeliminating the need for operatorsupervision.

It is, however, very important tounderstand the effect of sudden trimchanges on steering performance.

At planing speeds, where only a smallproportion of the hull is in contact withthe water, variations in wind speed anddirection can produce significant changesin trim. Similarly, variations in vesselattitude and engine settings also producetrim changes. When a change in trimoccurs the automatic trim compensationsystem requires at least 120 seconds toapply the necessary rudder off-set torestore the automatic heading. In gustingconditions, therefore, particularly whenthe wind is forward of the beam, thecourse may tend to wander slightly.

Passage making under automatic pilotis a very pleasant experience which canlead to the temptation of relaxingpermanent watch. This must always beavoided no matter how clear the sea mayappear to be.

5.1 UNSATISFACTORY STEERINGPERFORMANCEIf the Autohelm PowerPilot has beencorrectly specified, installed in accordancewith the instructions and adjustedcorrectly it will provide outstandinglygood steering precision over a very widerange of wind and sea conditions.

If the performance falls below yourexpectations and the pilot appears to beworking correctly the fault will normallybe found by carrying out the simplechecks outlined below. Before reportingyour difficulties to an Autohelm specialist,please check the following:-* Have the test procedures and

adjustments detailed in Section 3.3

been carried out correctly? Checkagain.

l Has the fluxgate compass beeninstalled in an area free from largemagnetic deviation? If in doubt use ahand bearing compass to check.

0 If performance has changed recentlyhas a magnetic influence beenintroduced near the fluxgate compass?- anchor/chain/radio equipment/loudspeaker/tools/AC. generator, etc.

l Is battery voltage correct? 12~.l Are fuses intact and of correct rating?l Are circuit breakers engaged?l Is wiring of correct diameter and are

screw connectors firmly tight?l If pilot fails to hold course - check

rudder setting at control units.

If vessel wanders under pilot controll Verity that hydraulic pump is correct for

size and type of vessel.l Check steering ram and actuator are of

compatible type and bleed system toremove air.

l Check rudder reference transducerlinkages for security and correctalignment.

25

6. MAINTENANCE

The autopilot is one of the most used andhardest working items of equipment onboard, and therefore must receive its fairshare of attention and routinemaintenance.

Regular inspection of the installation isrecommended in the following areaswhere applicable.1. Check that Hydraulic Steering systems

are free from leaks and trapped air.Bleed when necessary to remove airfrom the system.

2. Check that all inter-connecting cableterminals are fully tightened andcorrosion free.

3. Check that external waterproof socketsare capped when not in use andperiodically spray with WD40 (orsimilar) to protect from corrosion.

4. Check that the heavy power supplycable connections are tight and freefrom corrosion.

26

7. FAULT LOCATION PROCEDURE

Autohelm PowerPilot has been designedto achieve very high standards of reliabilitycombined with ease of servicing.

If a fault should appear, please doublecheck that all connections in theconnector unit are sound and that theheavy power cable connections are tightand free from corrosion. If you aresatisfied that all connections are sound,the simple check procedure tabulatedbelow will assist you to locate the mostlikely fault area.

Since the course computer houses themajority of the electronic control systemthere is a high probability that if anelectronic fault has occured it will be

located in this area. The course computerunplugs easily for servicing (Section2.1.1).

Control units are removed using asuitable lever to separate the pads startingat one corner. Do not use excessive force.Disconnect from the connector unit andwithdraw the interconnecting cable(Section 2.1.2).

The faulty unit should be removed andreturned to your nearest service agent.

If any difficulties arise, please consultNautech’s Product Support Department inthe U.K. or your own National distributorwho will also be able to provide expertassistance.

INSTALLATIONHAVE ONLY ONE

DO RED KEYSEMIT BEEP TONES

FAULT OCCUR

WHEN PRESSED? IN ONE CONTROL

27

8. WARRANTY, AFTER SALES SERVICE

LIMITED WARRANTY

Nautech or its appointed Distributors orService Centres will, subject to theconditions below, rectify any failures inthis product due to faulty manufacturewhich becomes apparent within twelvemonths of its purchase date.

Equipment used in the country ofpurchase should be sent directly to theauthorised Distributor for that country orits appointed Service Centres. The productwill then be service free of charge andreturned promptly direct to the sender.

Equipment used outside the country ofpurchase can be either:-a. Returned to the Distributor or Dealer in

whose country of from whom theequipment was originally purchased -itwill then be serviced free of chargeand promptly returned direct to thesender, or

b. The product can be returned freightpre-paid to the authorised Distributoror its appointed Service Centres in thecountry in which the product is beingused. It will then be serviced andreturned direct to the sender on thebasis that the Distributor or ServiceCentre will supply any parts used freeof charge but the sender will beinvoiced for the necessary labour andreturn shipment at the local rate.

CONDITIONSThe warranty is invalid if:-a. The product has been misused,

installed or operated not in accordancewith the standards defined in thismanual.

b. Repairs have been attempted bypersons other than Nautech approvedService personnel.

28

FULL INTERNATIONALWARRANTY

Nautech or its appointed Distributors orService Centres will, subject to theconditions below, rectify any failures inthis product due to faulty manufacturewhich become apparent within twelvemonths of its purchase date wherever thevessel and the product may be operated.

CONDITIONS1. The product must be installed aboard

the vessel in the country of purchase.2. The product must be installed in

accordance with the recommendationsissued by Nautech Ltd.

3. The installation must be carried out byan installer approved by Nautech:alternatively the installation must havebeen inspected and approved byNautech or its approved installer.

4. The Warranty Registration Card mustbe completed by:-0 The Owner or Userl The Dealer supplying the product0 The Installer

5. The Full International Warranty isinvalid if:-(a) The product has been misused, or

installed or operated not inaccordance with standards definedin this handbook.

(b) Repairs have been attempted bypersons other than Nautech

*approved Service personnel.(c) The warranty card has not been

completed correctly or is notaccompanied by proof of purchase.

CLAIM PROCEDURE1. The product should be sent direct to

Nautech or its appointed Distributor orService Centre nearest to the vessel.The completed Warranty Card andproof of purchase must accompany

the claim. The product will then beserviced free of charge and returnedpromptly direct to the sender.

2. Nautech,‘its Distributors and ServiceCentres, are not liable for any chargesarising from visits to the vessel not toattend to the product, whether underwarranty or not, nor for sea trials orany other work associated with theinstallation. The right is reserved tocharge for any such services at thelocal rate.

AFTER SALES SERVICEYour Autohelm PowerPilot is designed togive you long service and reliableperformance wherever you sail. To’ensurethat you can always receive prompt andexpert attention in case of any difficulty,Nautech has established a worldwidenetwork of AUTOHELM SERVICECENTRES.

Please contact your nearest ServiceCentre for assistance. Always haveready:-* Your Warranty Cardl Proof of Purchase

29

9. SERUICECENTRES - UK,Eireand Channel Islands

Greenham Marine Ltd

Ponsmo;thHdmphwe0705 693611

PortsmouthlChichesterHarbourGreenham Marine LtdEmrwonhYacht HarbourThaney RoadEmsworthHampshire0243378314

Chlchesrer MarinaChichestervuest Surseex0243 511070

Hamble RlverlSouthampton Watera K Electra MarineFt,; ;;ard

WaMshHampshireo4a952170

Hudson Marine ElectronicsMercuryYa~ht HarbourSdtchell LaneHambleliampd-lire0703455129

Lecmar Marine ElectronicsArcalta MarineCOWSl o w0983293996

& Lymlngton/PoolrGreenham Marine LtdKlog Saltems LaneLymmgtonHampshire0590 75771

Danlea ElectronicsCobk QuayPO&DOnet0202673880

Greenham MarineLtdQuay West Mamaz&y Quay Road

DO&et0202676363

aumin Marine Electronics

OS4 8&i 3321

COXKkPfymwth0752 228114

190 Dock StreetFleefwocd03917 5241

Marine Electronics SflemrPutiigeauckfdnd arweraidefordNorlh Own0805 22870

Northern IrelandBelfast Lough Marine Electronics55 aelfan RoadCnickfergurCo Antrim0960365565

Ocean Marine Servicer4 3 afetonridePfymwth0752 23922

Quay Electrfcs (Teignmouth) LtdThe Sail LohPump seeet

Dublin 110001342590

arixham080 45 3030

Rider ServicesGlenbrookPassage westCo Cork010353 2184 1176

Mylor Marine Electronics

FalmouthCornwall0326 74001

Sevrrn & Bristol ChannelAN D Electronics

Dene RoadSevernrlde Trading EstateAvonmoutharw0l0272 821441

Dale Sailing Co LtdDdkHavedord WestDY+d064 6.5 349

&No”h&WestWa~esi\ Rowlands Marine

Electronics LtdThe Outer HarbourRNllheli0758613193

Sailtronic MarineChurch StreetGlan Conv.vnchffl a&Clwyd0492 $a 536

Steampacket BuildingEast QuayRansPfIsle of Man0624 812583

S/W ScotlandBoat Elect& h Electronic

Ayrshire0292315355

western ScotlandJeff RutherfordYacht Electrical andElectronic Servicestargr Yacht Havenlrvme RoadLargrAyEhire0475 686091

Northern Scotlanda P ln~rument~t~onLtdGreenbank RoadEast T”llOSAberdeen0224874003

scallowayShetland059 588 645

.fi S/E Scotland

MerseyrideRobbins Marine Radio ServicerNorfh East Cobwg DockLwerpoolOS1 709 5431

Fonh Area Marine ElectronicsElectronics CentrePoR EdgarSouth QueensferryE d i n b u r g h0313314343

Humbersidei/&m Electronicc Marine Ltd

&‘WM Wrlghl0cck.sHull0482 25163

,&& &;i;;‘%$e Ltd

GrkgewalkWroxhamNorfolk06053 2238

R 6 J Marine Electronics2 alrch AvenueDcwxoun adyHarwlch0255 502819

R 6 J Marine Electronicsc/o Suffolk Yacht HdrbourLevingtonIprwich047 388 737

Werner Ober-YachtelektronikA-6890 LusrenauRelchrstrasx 38AustriaTel: (0104315577 2419Fax: (010 43) 5577 24195

.A E s s e x B a r b a d o s

Mantrbrite htarine Electronicsdff 19d Spatal Road

MaldonESSex0621 53003

dbKent

Heron Marine Services129 aroddwayHerne sayKent0227 361255

.iqChannel lrlandsaoatworkr +

r’?>Cartle Emplacement*. $1 P e t e r POR

GWfWY0481 26071

Jersey Marine Electronicsumt 2La weSt n&rkSey0534 21603

Mainbrayce LtdInner t4arbourar.+eAlderney0481822772

10. OVERSEASREPRESENTATIVES

ArgentinaTrimer S.A.Fray J.5 M. de Ore 2030/401425 Buenos AiresArgrntmaTel: (010 54 I) 774 3728/4470Telex: 007 33 23653 TRMER AR

AustraliaSolo Marine Pty Ltd11 Green StreetRwerbyNSW2212AUSl&T&(01061 2)7745255Telex: M)7 71 127045 SOLMAR AAFIX: (010 61 2) 7745291

C.O. Williams Electrical Co. LtdWa,,elWSt MkherlBarbddorTel:(0101809)4252250Telex: 007 392 2366 COW WaFax: (010 1809) 424 0374

BelgiumWest Diep Yachting Centre SPRLa.a450 N~euwwonLouisweg 2BelgiumTel : (0103258) 234061fa.~:(01032 sajsa23924a

BermudaMarine Communications72 Pntr Bay RoadPembroke HM 06BermudaT~I: 010 i 809) 295.0558Telex: 007 290 3795 MARCO aAFax: (010 1 809) 292 co79

B r a z i lFast YachtsControl S A.lndurtro E. ComericoP.0 Box 12700sao Paub - SPardrilTel:~01055)115211944Telex: CO7 38 11 24612 CNTO RRFax: (010 55) 11 5482070

British Virgin IslandsCay ElectronicsP.O. aor 345Road TownTOr7&arbtlrh Wrgin IslandsTel: (010 1 a09 49) 424007&x: 007 255 510 1006891 ESLUD63~. (010 i a09 49) 44707

Tom Taylor Co. Ltd72 Fraser AvenueToronto M6K 3ElOntarioCanadaTel. LO10 !416)53OlatlTelex. 007 2 1 06524332 TOMTAYCO TORFax: (010 I 416) 5304345

Canary IslandsNordenus iuan awista 57Santa Cruz de Tener,feCanary lrldndsTel. (010 34 22) 26-t a71Telex: W7 52 92230 CCKIN EFa*:~0103422)287311

CYPNSMercury Diven Co. Limited53 Spyrou Araouzou StreetP.O aor 469LimarrdCyprusTe~fO1035751)65492Telex: W7 605 4976 MERCDNE 0’

FinlandOy Maritim AaVeneentek~~antie 1:‘,-,12 10 Helsinki

;el:(010358)0673331Telex. 037 57 124788 MARJT SFFar:(010358)06927917

France5.0. Marine Electronique17.25 Rue Barian78500 5anr0~~~11eFranceTef.(O1033)139146833Telex: 007 42 658347 SDMELECFax: (010 33) I 3913 3022

Gibraltar

Bond Innrument~tionThe D&yardGibraltarTe~(OIO35Ol73701I&<: 007 405 2373 GlaREP GKFax: (010 350) 73726

Sale3H. Sheppard 6 Co.W.C3pXtG,braltdrTel (010 350) 77183Telex. 007 405 2324 MARINA GK

G,ee<ePiraeur Electronic46 ALU h4oursopoulouhlarlnd Zearla5 36 plraeusGWXeT&(010301)4531027/41a 1797Telex:007601 241219DORlGRFax (olo301)4la 1091

.

H o l l a n dBconwna’s Handelmaatxhappij 8.VP O BorNr.501281305 AC Almere Have”H&r!dTel- (01031 3240) 11524Telex: 007 44 70121 GEBONIFar (010 313240) 11519

H o n g K o n gFar East Yacht Specialists limitedM 2 floorEarkervik House22 Ice HOuIe streetHong KongTel: (010852)5 257015/5229394Tele:: 007 802 65925 KREMA HX

SwitzerlandYachting SystemsGeneral Wdle Slrarre IO8002 Zurich EngeSwuerlandTel: (01041 I)202 8044Telex: 007 45 816598 YASH CHFar:(01041 I)2028064

TaiwanIng Hai Company LimitedP O Box 9 - Y

Marine torail PacifiqueBP 648 NoumeaNewCole&&Tel: IO10 687) 27 58 46T&r 007 706 3 120 CONIPANS NMFdx: 1010 687) 27 66 43

NewZealandLusty 6 Blundell limited69 Wairau RoadTakamnaAuciland 10New ZealandT&(010649)4443675Telex: W7 74 60324 LUST-Y NZfax: (010 64 9) 444 3738

Tel: (010 88 6215312 068Telex: 007 785 13951 VIRAGOFax: (010 88 62) 5376 531

N o r w a ySeatronic AISnardd HaarldgrE54Jl s15w MossNcmayTel: (010 47)9 2727331231272835Telex: 007 56 76542 SIRON NFar:(01047)9274152

P o r t u g a lA. Percira JordaoRuadcloreFakao 152.1564ooo PortoCc&?*PonugalTek(o10351 2)209479Telex: CO7 404 22308 JORDAO PFar(010351 2)314169

I c e l a n d&nco Ltd

Lagmula7125 ReykjavikkclandTel: (0103541)8jO7?Teler 007 SO1 2334 BOLT-X I5fax: (010 354029323

TurkeyTurimpexM. Burhanetlin TekdagHaydn Irk&i Cad. I-780680 EtiktarIstanbulTel: (010) 16046881161 01 32Telex: CO7 607 26613 TRIM TR

U S ASWVilXAutohelm AmericaNew Wh,tBeld Streel;y;fmd, CT 06437

%i: CO10 I 203) 453 8753Telex: W7 230 643 804 IMIFax:(OlOl 203)4536109

Brim Yacht I Marine SupplyTel Am P.O. Box 33232IsraelTel: (010 972) 320 259913284432lelcr 265871

(Gu&eret J37AlJR)MONREF G

ItalySlngaporcDeck Marine

Vdc Cerdosa 15520151 M4amIldfY~4: (010 392) joa 7229Telex: 007 43 353147 DECK IFax: (010 392) 301 3398

west GcrmdnvCo”%micatio”s SyrtemrEngineering Pte Lld67 Ayer Rajah Crescent 07.01Smgapm 05 I3Tel. @lOSSI 77 65191Telex: W7 07 23036 DEBEGPLFax:(01065)7766795

Ferropilot GM&2064 R&we”Slemenrtras-se 3sWest GermanyTel.(010494101)301240Telex:00741 2189160FERDFax:(010494101)301214

West lndlnThe Signal LockerNelsoon~s DockyardAntiguaW-1 IndiaTel:(O101809)4631528Telex:(CO7393)214212ll9

DYRDBHT AKNACHTS AKFax:(0101809)4631524

YugorldvldMare NostrumYachting CcarultingEorur CcirbSdinM.Tira 85OpdlljdYugcriaviaTel:~0103851)713506Telex: 007 62 24215 TEHRI YU

JapanJ.M.J. Limited2F lnago Bldg 370Hayama - bhliMumKanagawaJapan

Souih AfrlcrCentral Boating Pty Limiteda I Brec 5seetCape Tow” 8WlSouth AfricaTel: Ml0 27 21) 248026r7@Teh: 007955 26712%Fax~OlO2721)242564

SpaInSit&MuntanerMEartelona 11SpainTel:1010343)3234315Tekx: 007 52 542 18 SITf EFw(OlO343)3235062

Tel: (01081)46876 1511Telex: 007 72 3852532 JMJJPN JFas 010 81468 76 1044

RipardLawan 6 Ripard156 Ta’Xbier SeafrontYachttviatiaMakaTel: 1010 356) 3559)Telex: CQ7 406 934 YOTS MW

Netherlands AntlllesRadi&+olland Caribbean NVP.O. Box 146Phrlipburg5, thanenNetheriandr AntillesTel. (010 599) 522583la: (010 599) 5-22589

Axhtde 6 HanssonNya Vdw?l5.421 71v: FrotundaSWfdenTel:~OlO4631)291111Telex: 007 54 21447 AXHASFax:(0104631)292789

32 4434312