a u t o p i l o t s

Raymarines Autohelmright Autopilot choice. Series the

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Intelligent features

When it comes to autopilots, there is one name that stands above the rest. Raymarine is synonymous with performance, reliability and ease of use. With a comprehensive range of pilots to choose from, whatever type of boating you enjoy cruising, racing or fishing an Autohelm Series autopilot from Raymarine is the right pilot for your boat.
Raymarine the intelligent choice of pilot.
No matter which model you choose, every Raymarine pilot is packed with intelligent features. From a basic tiller pilot to a powerful inboard system, each comes with a simple, intuitive keypad for easy operation and a clear, functional LCD display to keep you informed (option for SportPilot). SeaTalk and NMEA compatibility allow you to integrate the pilot as part of a complete Raymarine navigation system. Set the pilot to steer a course, track to a waypoint from your GPS or chartplotter, or steer to the wind. Additional control units and hand held remote controls ensure you remain in complete command anywhere on board. Behind the scenes, intelligent software and proven hardware have earned Raymarine a reputation for building the worlds finest autopilots to steer your boat in all conditions. Some of the features you will find in Autohelm pilots from Raymarine: Informative and versatile LCD display. Simple push-button control keypad. SeaTalk/NMEA compatible. Track to waypoint from GPS or chartplotter. Instrument/navigation Datapages. Remote control and multi-station option. AutoTack (programmable turn). Steer to wind angle - True/Apparent. Rudder angle display.
AST Advanced Steering Technology: state-of-the-art software, for new G-series course computers with built in rate gyro, gives superb steering performance and boat handling (see page 37). AutoLearn: When fitted with the 150G/400G core packs, the ST6001 and ST7001 inboard pilots learn your boats handling characteristics for optimum pilot performance. SeaTalk Networking: The world renowned on-board plug and play solution for connecting multiple remote autopilot displays and connecting to Raymarine integrated navigation systems. Data pages: Customize your favorite navigation information to be displayed as you would like to see it.
Right choice the world over
In a recent survey of over 130 transatlantic yacht skippers, 70% use an Autohelm from Raymarine to get them safely across the ocean*, and in the worlds toughest single-handed yacht races, youll find Raymarine autopilots steering the boats day and night, all over the globe. No wonder the worlds top boat builders fit Raymarine as standard equipment.

Right technology

With literally millions of miles of experience in steering all kinds of boats, its no surprise that Autohelm (Raymarine today) pioneered all the major advances in autopilot technology integration with instrument and navigation systems, the fluxgate compass, push button steering, AutoSeastate, AutoAdapt, AutoTrim and now AST Advanced Steering Technology.
* Figures quoted in June 2001 Yachting World.
AutoTack: Tacks the boat through a preset, user-defined turn.
Automatic Compass correction: Automatically adjusts the compass to give accurate read outs and heading information on all headings.

Auto Speed Gain: Adjusts the amount of helm applied at different boat speeds for a smooth safe ride.
Wind Trim: When sailing to a set wind angle, the pilot will monitor subtle wind shifts and alert you if there is a long term shift which may affect your ability to hold a course. AutoSeastate and AutoTrim: Automatically adjusts for wind and sea conditions to hold the best course.

Tech tip

Remember, always take the fully laden displacement weight of your vessel into account, this is often 20% above the designed displacement, so dont be tempted to choose a pilot which will always be working at the limits of its designed capabilities. If you choose your pilot with safety in mind, it wont struggle when the going gets tough.
Course Memory: After a manual course change to avoid an obstruction, simply press down Auto for one second to return to your previous course.
Calibration Lock: Allows you to secure your customized settings from unauthorized access.
Selecting the perfectinboard pilot system.
An introduction to inboard autopilots
Inboard pilots must be powerful enough to handle the demanding loads applied to the steering system of larger boats. The drive unit of an inboard pilot is mounted below decks linking directly with the boats steering system all you see at the helm is the control unit. Raymarine offers a range of control units to suit your needs and style. To determine which drive unit you require, simply answer the questions in this chart. Once you have selected a drive, refer to pages 74 & 75 for detailed drive specification and part number information.
IS THE STEERING HYDRAULIC?
Selecting the right pilot
An inboard pilot consists of a drive unit, corepack and your choice of control units. The first step is to specify the correct drive unit to match your boat's steering system, displacement and size. Use the flowchart (right) and specifications on pages 74 & 75 as a guide*. Next, select the appropriate corepack; T150/T400 or G-series 150G/400G course computer (with AST and built-in gyro). Finally, choose from ST7001, ST6001, ST600R or Raypilot 650 control units.

* We recommend that you consult a Raymarine approved dealer who can specify, install and commission the correct Raymarine system for your boat. An approved installation also carries our full worldwide 2 year warranty.
DOES THE STEERING USE CABLES?

IS THE CABLE SHEATHED?

IS THE STEERING PUSH PULL?
IS THE STEERING POWER ASSISTED?
CAN THE STEERING BE BACK DRIVEN?

HYDRAULIC PUMPS PAGE 75

UNIVERSAL STERNDRIVE PAGE 74

ROTARY DRIVES PAGE 74

MECHANICAL OR HYDRAULIC LINEAR DRIVE PAGE 75

Corepack

Contains course computer, rudder reference and fluxgate compass.

COURSE COMPUTER

RUDDER REFERENCE

FLUXGATE COMPASS

Raymarine Autopilot
Course Computers setting new standards in autopilot performance.
More powerful and rugged than ever before, Raymarine course computers serve as the central intelligence hub of our inboard pilot systems. Choose the standard T150 or T400 or the advanced G-series 150G and 400G course computer with built in rate gyro sensor. The G-series adds a new dimension to autopilot technology, delivering AST, AutoLearn* and FastTrim features as well as high performance heading output. 37
Advanced Steering Technology (AST)
Using AST (Advanced Steering Technology) software and a built-in rate gyro transducer, the new G-series course computers maintain a razor sharp course with smooth, crisp and controlled turns right onto your next heading. With a Raymarine GPS to guide it, your inboard pilot will track straight to your next waypoint making cross track error a thing of the past.
Intelligent AutoLearn function
With the new ST7001 and ST6001 control units, AST and AutoLearn* software learns your boats handling characteristics and automatically sets up your pilot for optimum performance. Fastrim AST corrects for any changes in standing helm needed to keep the vessel on course (e.g. weather helm or loss of one engine), keeping you right on course when the going gets tough. Sensitive Response AST allows you to retain complete control of how the pilot steers your boat to provide the most comfortable ride or conserve power on long sail passages. MARPA and Radar/Chart Overlay G-series course computers also provide accurate and stable heading data for MARPA and chart overlay functions on Raymarines Pathfinder radars and chartplotters.

* AutoLearn requires ST6001/ST7001 control unit with 150G/400G course computer.
Technical Specifications see page

ST7001

superb AST* performance with AutoLearn** technology.
A powerful and versatile maxi-sized control unit, the ST7001 is really simple to use. Its large informative display and intuitive keypad give you quick and easy access to all pilot data, as well as up to 15 pages of selectable instrument or navigation data pages. Setting the pilot up could not be easier when installed with a G-series course computer corepack. Using advanced AST (Advanced Steering Technology) software, the ST7001 will AutoLearn your boats steering characteristics and automatically enter the optimum settings to give crisp, smooth turns and superb course keeping at all times. Ideal for longer passages, the response function controls how the pilot helms the boat, ensuring the most comfortable ride at all times while keeping you right on course.
ST7001 outstanding features
Large crisp LCD display with easy-to-read rudder angle indicator. Intuitive keypad and the proven Autohelm button control. SeaTalk networking enables the easy addition of multiple remote ST7001 and ST6001 control heads or multiple ST600R handheld remotes.
ST7001 Plus and ST6001 Plus 1. Master head ST7001 Plus 2. Master head ST6001 Plus 3. Optional ST6001 Plus flush mount 4. Course computer 5. Optional Raypilot 650 head 6. SeaTalk network 7. 12v DC 8. Fluxgate compass 9. Rudder reference 10. Drive units.

Instrument integration

The ST7001 integrates with Raymarine SeaTalk instruments with up to 15 configurable data displays and GPS data. In addition the ST7001 can serve as a remote keypad control for ST60 instruments!
* With 150G or 400G course computer corepacks only. ** AutoLearn requires ST6001/ST7001 control unit with 150G/400G course computer.
Setting new standardsand AutoLearn*. the versatile ST6001 with AST
The ST6001 has become the benchmark for autopilot performance and styling, installed aboard more sail and motor yachts than any other inboard pilot. Perfect where space is limited, its clear LCD display with up to seven SeaTalk data pages allows you to monitor important navigational data. When installed with the new G-series Course Computer corepack, ST6001 will AutoLearn your boats handling characteristics, just like the ST7001 and will automatically set up your pilot for optimum performance.

Outstanding ST6001 features:
Compact and stylish control head matches Raymarine ST60 Instruments. Proven Autohelm button control. SeaTalk networking enables easy addition of multiple remote ST6001 and ST7001 control heads or multiple ST600R handheld remotes.
* With 150G or 400G course computer corepacks only.
ST5000 Plusall-in-one autopilot package for powerboats. PowerPilot an
A high performance pilot for powerboats, the ST5000 Plus PowerPilot is the right choice for mid-size sport and powerboats with systems available for hydraulic, outboard and power-assisted steering. Advanced software makes the ST5000 Plus the ideal pilot for both high speed passages and for trolling. The separate control unit is simple to use with an easyto-read display. As you would expect, SeaTalk and NMEA interfaces are standard, allowing you to steer to a compass course or direct to a waypoint from your GPS or chartplotter.
ST5000 Plus PowerPilot features
Complete "all-in-one-box" autopilot system. Patented external fluxgate compass for optimum performance and course keeping accuracy. SeaTalk networking allows for additional ST7001, ST6001 or ST600R remote display heads.
Data displays can be accessed via the display key (maximum of seven displays).
Designed for vessels with power assisted sterndrive or hydraulic steering (see specifications on pages 74 & 75).
Note: Not all sterndrive steering systems are supported. We recommend that you consult a Raymarine approved dealer who can specify, install and commission the correct Raymarine system for your boat. Or visit www.raymarine.com to learn more about sterndrive pilot installations.
ST5000 Plus PowerPilot system 1. Master head 2. Optional control heads (ST6001/ST7001) 3. Flush mount option 4. SeaTalk network 5. Rotary rudder reference 6. Fluxgate compass 7. Drives: universal I/O (see page 74), Hydraulic kit (see page 75), Sterndrive (see page 74) 8. NMEA GPS 9. 12v DC 10. Autopilot control head (rear).

SportPilot

SportPilot and SportPilot Plus
An easy-to-use and easy-to-fit pilot for powerboats with a single-station helm. Just line up on the desired course, turn the control stick to AUTO and let go of the wheel it really is that simple! When you want to steer again, grab hold of the wheel and steer as normal. With built in SeaTalk and NMEA interface, you can select a waypoint on your GPS or chartplotter and SportPilot will take you straight to it.
compact autopilot for powerboats.

SportPilot features

Rapid user intervention allows the operator to shift the pilot from auto into manual by simply taking hold of the wheel. So simple select Auto and go! One of the easiest pilots to install. GPS waypoint navigation.
SportPilot Plus is ideal for smaller sport fishing boats* with easy speed settings for high speed pursuits or trolling, so you can prepare the bait while the pilot steers the boat. The standard SportPilot is ideal for sports cruisers and rigid inflatable boats.

Sportpilot installation note
Fits 0.75" and 1" tapered wheel shafts. Max. wooden wheel diameter for 0.75" and 1" steering shafts: 21" (540mm). Max. metal wheel diameter for 1" steering shafts: 18" (460mm). SportPilot Plus recommended for trolling speed applications.
SportPilot designed for boats up to 8.5m (27ft). SportPilot Plus for boats up to 10.7m (35ft).
* Check with your approved Raymarine dealer for the correct pilot for your boat.
SportPilot system and SportPilot Plus system (no rudder reference) 1. SportPilot or SportPilot Plus 2. Rear wheel connection 3. Optional autopilot control head 4. SeaTalk network 5. Linear rudder reference 6. Fluxgate compass 7. Rotary rudder reference 8. 12v DC.
ST5000 Plus SailPilotfor size sailboats. rugged performance medium
ST5000 Plus is the perfect autopilot package for offshore sailing yachts. The free running mechanical linear drive unit is mounted below decks, providing responsive steering in auto mode and friction-free movement in standby mode. The computer is integrated within the control unit for easier installation. ST5000 Plus is simple to use and a versatile addition to your navigation system. SeaTalk and NMEA interface with GPS and wind instruments and the large display repeats your choice of up to seven pages of navigation/instrument data.
ST5000 Plus SailPilot features
Designed for yachts up to 9000kg (19,800lbs) (see tech tip on page 44).
ST5000 Plus SailPilot system 1. Master head 2. Optional control heads (ST6001/ST7001) 3. SeaTalk network 4. Rotary rudder reference 5. Fluxgate compass 6. 12v DC 7. NMEA GPS 8. Linear drive 9. Autopilot control head (rear).

RayPilot 650

With its rotary steering control and power steer mode, Raypilot is a popular choice for motor and sportfishing yachts. Below decks, AST software in the new G-series course computer corepacks uses a built-in rate gyro to provide superb steering performance and also output highly accurate, stable heading data to Raymarine radars for MARPA and chartplotter overlay.

powerboat autopilot.

Raypilot 650 features
Large rotary course control with Power Steer mode for total helm control. Oversized LCD and rugged housing with trunnion mount bracket for console or overhead mounting. Multiple remote Raypilot 650 control heads can be added thanks to SeaTalk networking.
Raypilot with rotary course change 1. Master head Raypilot 650 2. Optional control heads (ST6001/ST7001) 3. Course computer T150/T150G/T400/T400G 4. SeaTalk network 5. 12v DC 6. Fluxgate compass 7. Rotary rudder reference 8. Drives (see pages 74 & 75).
* RayPilot 650 is compatible with all course computers (AST, FastTrim and fast heading data output require G-series course computer). AutoLearn is not available with RayPilot 650 control unit.

ST600R

The powerful and compact ST600R is the ideal addition to any Raymarine autopilot system. Its push-button keypad gives full control of the autopilot, while the powerful LCD display allows you to monitor up to 21 pages of SeaTalk instrument and navigation data, keeping you in control anywhere on board.
autopilot remote control.

ST600R features

Full function autopilot control.* SeaTalk deck sockets can be added anywhere onboard for complete Autohelm control. Instrument/navigation data repeater. Up to 21 selectable pages of information. "Chapter and Page" menu to find data fast. Compatible with any Raymarine SeaTalk autopilot and SeaTalk instrument system.
*G-series course computer corepacks require either the ST7001 or ST6001 control heads for complete calibration and AutoLearn.
Optional SeaTalk handheld remote also available.

Selecting the right

tiller and wheel pilots.
Tiller Autopilot selection chart
The right pilot, correctly installed, will give you many years of dependable service in all weather conditions and will quickly become a valued member of the crew. Start by selecting the correct pilot for your needs. Consider the type of boating you plan to do, then match your boats steering system, fully laden displacement weight and length with the tables (right) to find the right pilot model for you.
ST1000 Plus ST2000 Plus ST4000 Plus ST4000 Plus GP P47 P47 P46 P46
Wheel Autopilot selection chart

ST3000

ST4000 SportPilot SportPilot Plus ST5000 Plus Inboard Modular Inboard

P45 P41 P41 P42 P38/9

Extensive cruising and long offshore passages. Coastal cruising and occasional offshore passages.

ST4000 Plus

ST4000 Plus Mk II Wheel Pilot
The innovative ST4000 Plus wheelpilot is equipped with the fully enclosed Mk II wheel-drive for simple installation and below deck autopilot performance. The separate ST4000 Plus control unit can be mounted where it is easy to reach and see. The patented fluxgate compass is mounted remotely for optimum performance. The LCD confirms pilot status and repeats up to seven pages of user-defined navigation data from your ST60 system. The rugged Mk II 4000 wheel drive unit is available as an upgrade for existing ST4000 systems.
Designed for vessels up to 8,500kg (18,700lbs) (see tech tip on opposite page).

with Mk II drive unit.

ST3000 Wheelpilot
Belt driven autopilot for wheel-steered yachts up to 13,200lb (see tech tip opposite). Proven Autohelm series belt driven wheel pilot. Integrated control and compass unit makes installation easy and pilot can be quickly removed when not in use. Complete ST3000 details available at www.raymarine.com
Designed for vessels up to 6000kg (13,200lbs) (see tech tip opposite).

ST4000 MKII wheeldrive system 1. Drive only 2. Autopilot control head (rear) 3. Optional control heads (ST6001/ST7001) 4. Flush mount option 5. SeaTalk network 6. 12v DC 7. NMEA GPS 8. Rotary rudder reference 9. Fluxgate compass 10. Master head.
Autohelm Series and ST4000T Plus GP tiller ST4000T Plus
pilots for the serious sailor.
ST4000T Plus and ST4000T Plus GP
With its rugged drive unit, the ST4000T Plus range is the perfect pilot for larger tiller steered yachts. The fluxgate compass is separated from the drive unit for greater accuracy and the control unit can be mounted where it is always easy to reach. Full SeaTalk and NMEA compatibility means you can steer straight to a waypoint, lock on to a given wind angle, or simply set and follow a course to steer. Whichever you choose, the large clear display keeps you up to date and also acts as a multi-function instrument or navaid repeater. Used by the worlds top singlehanded race skippers, they are the perfect choice for the serious sailor.
ST4000T and ST4000T GP features
Unique Tiller pilot system with full function ST4000 Plus control head and remote mounted fluxgate compass. SeaTalk networking allows for additional ST7001, ST6001 or ST600R remote display heads. Powerful tiller drive unit is compact and unobtrusive.
ST4000T Plus and ST4000T Plus GP 1. Master head 2. 12v DC 3. NMEA GPS 4. Tiller drive 5. Flush mount option 6. Optional control heads ST6001/ST7001 7. SeaTalk network 8. Optional: fluxgate compass 9. Autopilot control head (rear).
ST4000T Plus designed for vessels up to 6000kg (13,200lbs) and ST4000T Plus GP for vessels up to 7,500kg (16,500lbs) (see tech tip on page 44).
Autohelm Series tiller pilots perfect crew members.
ST1000 Plus and ST2000 Plus
Invented by Autohelm in 1973, tiller pilots have consistently been the worlds most popular pilot ever since, setting the standard for performance, reliability and ease of use. Advanced features are standard. AutoTack lets you handle the sheets while the pilot tacks the boat and AutoSeastate intelligently keeps the boat on course while conserving power. Whether used as a stand-alone pilot or with a SeaTalk/NMEA GPS, the clear backlit LCD and six button keypad make these pilots safe and easy to use.
ST1000 Plus and ST2000 Plus features
Built in LCD display for easy setup, compass heading display, and waypoint navigation data display. SeaTalk networking permits multiple ST600R, ST7001 or ST6001 control heads to be connected. Seamless SeaTalk integration with other Raymarine equipment. NMEA 0183 compatible for GPS navigation.
Typical ST1000 Plus and ST2000 Plus tiller pilot displays.
ST1000 Plus and ST2000 Plus tiller pilots 1. Tiller drive 2. Bulkhead connection 3. SeaTalk network 4. 12v DC 5. NMEA GPS.

ST1000 Plus designed for yachts up to 3,000kg (6,600lbs). ST2000 Plus for yachts up to 4,500kg (10,000lbs) (see tech tip on page 44).

Installation and Operating Handbook

ANALOGUE

Autohelm 1000
The Autohelm 1000 is a highly developed autopilot built to operate reliably in exposed marine conditions. When correctly installed it will soon become a vital crew-member giving many years of invaluable service. The system has been designed for owner installation and aided by the following installation guide, fitting should prove to be a straightforward and enjoyable job. Cockpit and tiller configurations vary widely, and thus in some cases special attachments may be necessary to effect the neatest possible installation. The attachments available and their applications are fully described and are stocked for immediate supply when required. In cases where special advice is needed you are encouraged to contact our Technical Sales Department who will be pleased to assist.

INSTALLATION

The basic actuator unit is a totally self-contained magnetic sensing automatic pilot. The autopilot is mounted between the tiller and a single attachment point to the yacht's structure. After connection to the yacht's 12 volt electrical system the unit becomes operational.
The actuator pushrod attaches to the tiller via a ball-ended pin situated 18 (460mm) radially distant from the rudder stock or rudder pintle centreline. If the rudder pivot axis is sloping, the position of the ball-ended pin must be positioned at a radius of l8 (460mm) at 90 degrees to the axis of Since the autopilot incorporates a magnetic sensing rudder rotation as shown on the accompanying device, it is advisable to ensure that the yacht's illustration. steering compass is situated at least 2'6 (750mm) away to avoid deviation. The autopilot slots into the bronze mounting socket A provided, which should be permanantly fixed in position. The mounting socket should be positioned 19 (480mm) to starboard of the cockpit centreline to ensure that port and starboard tiller movements are equalised. It is also important to ensure that the unit is positioned horizontally and as near as possible to 90 degrees to the tiller when the tiller is centralised.
Extended pushrods In some cases it may not be possible to provide a convenient site for the mounting socket at the standard mounting distance of 19" (480mm). In such cases the mounting distance can be increased in increments of 1" (25mm) to a maximum of 6" (l5Omm) with the use of special pushrod extensions. The pushrod is extended by first unscrewing the pushrod end cap and then screwing the pushrod extension Basic installation method into position between the pushrod and the end cap. When the tiller is positioned low in the cockpit This attachment is necessary, for example. When the and is adjustable in height, the mounting socket cockpit is unusually wide or when it is convenient can be most conveniently positioned on the to mount the unit on the cockpit coaming. starboard cockpit seat. The pushrod is attached to the tiller via the standard ballpin provided which is inserted directly into the top of the tiller. The ballpin is installed by inserting it into a (6mm) drilled hole and securing with a good quality two pack epoxy adhesive such as Araldite. The shoulder of the ballpin should be positioned (12.5mm) above the upper surface of the tiller to avoid fouling when the pushrod is fully retracted. Porthand mounting In certain instances it may be more convenient to mount the unit on the porthand side. The standard unit is sensed to operate on the starboard side of the tiller and where porthand mounting is required a special porthand system must be ordered. Porthand systems must be fitted with porthand wind vane attachments. The autopilot mounting socket is installed by inserting it into a 1.2 (12.5mm) drilled hole and permanently bonded with Araldite. It is important to ensure that the mounting socket is securely installed. If the mounting site, for example, consists only of a single glass fibre skin of less thickness than the depth of the socket it will be necessary to provide reinforcement by bonding a plywood strengthening plate to the underside. The autopilot is capable of generating very high pushrod loads and it must be stressed that in all cases the mounting socket should be very firmly bonded into position.

Tiller attachments When the tiller is not adjustable in height or is positioned appreciably higher than the most convenient site for the mounting socket. It is often convenient to lower the ballpin underneath the tiller. Standard tiller cranks are available in a range of sizes to lower the ballpin centre in increments of 1 (25mm) to a maximum of 5 (125mm) below the underside of the tiller. Since the pushrod centreline is positioned 2 (62mm) above the mounting socket, these attachments can cater for a vertical distance between the mounting socket and the underside of the tiller of up to a maximum of 7" (190mm). This attachment is particularly useful- in the case of transom hung rudder configurations (such as the Folkboat) where the tiller passes over an extended counter. In such cases a tiller crank of suitable ballpin off-set will enable the unit to be neatly mounted directly on the surface of the counter or the rear coaming.
The tiller crank attachments are bolted through the centreline of the tiller, with (6mm) diameter bolts and since the bolts through the neutral bending axis, the bending strength of the tiller will not be significantly altered. The securing bolts should be looked into the clearance holes through the tiller with epoxy adhesive to ensure that they do not work loose in operation.
Cantilever mounting It may sometimes be necessary to attach the autopilot to a vertical face such as the cockpit sidewall. In this case, a special cantilever mounting is available and is particularly convenient when the tiller is positioned substantially higher than the level of the cockpit seat. Full instructions are supplied with each cantilever mounting kit. The standard cantilever mounting kit allows the autopilot mounting socket to be off-set by a maximum of 10 (250mm) from the vertical mounting face. This maximum dimension may be reduced by cutting the cantilever to length during installation. The cantilever screws into a permanently mounted base which is bolted into position by three (6mm) stainless steel bolts. The cantilever may be unscrewed from its permanent mounting base to allow unobstructed working space when the autopilot is not in use.
Pedestal mounting In certain cases it may be convenient to raise the height of the autopilot mounting socket above the cockpit seat or counter for example. Standard pedestal assemblies are available to raise the mounting height from 1 to 3" above the mounting surface in " (12.5mm) increments. The pedestal base is bolted into position by three (6mm) stainless steel bolts. When the autopilot is not in use the pedestal may be unscrewed from its base to allow clear working space when necessary.
Wind vane attachment The wind vane attachment consists of two basic modules the mounting mast which elevates the wind vane into clear wind and the wind vane transducer head which attaches to the clevis at the head of the mast by means of the cranked key provided. The wind vane transducer is electrically connected to the main autopilot unit by means of the waterproof jack plug on the end of the interconnecting cable. When the wind vane is not in use and the waterproof plug is disconnected special care mist be taken to ensure that the rubber blanking plug attached to the socket on the main autopilot unit is firmly pushed into position. If this is not done water Battery connection could enter the jack socket and temporarily disable For trial purposes the actuator power lead may be the autopilot until the water is dried out. connected directly to the vessel's 12 volt battery. The brown lead should be connected to the positive terminal and the blue lead to the negative terminal. If the power connections are accidentally reversed the autopilot will not function but no damage will result. Use of attachments In very many cases the autopilot can be installed without the need for special attachments. Where this is not easily possible the above standard attachments will normally provide a neat solution and avoid the need for structural alterations. In very rare cases where the standard range of attachments do not provide a convenient mounting arrangement it may be necessary to consider the use of purpose made attachments. In the event of difficulties occurring, our Technical Sales Department will be pleased to advise. It is recommended that a waterproof plug and socket is situated adjacent to the unit and the power lead shortened. A standard 5 amp fuse should be provided in the power supply circuit to protect the internal supply cable between the battery and the waterproof outlet socket. NB The equipment must not be connected to a battery charger for testing.

Similarly when the jack plug is inserted in wet cockpit conditions, extreme care should be taken to ensure that the plug is kept dry. Occasional lubrication of the jack plug with Vaseline will help to minimise problems of water intrusion. Once the jack plug has been inserted, the connection is absolutely watertight. The wind vane transducer mounting mast is normally clamped centrally to either a vertical or horizontal rail of the after pulpit using the 'U' clamps provided. In the event of an after pulpit not being fitted the mounting flange may be bolted directly to a suitable vertical face. Care must be taken to ensure that the wind vane transducer is in clear wind on both tacks and not too close to the deflected air stream from the mainsail. This is normally ensured by situating the mounting mast centrally behind the backstay and by elevating the wind vane at least 2ft (60cm) above the highest deck obstruction. Feedback linkage The autopilot operates on the principle of mechanical feedback between the sensors and the rudder to correlate corrective rudder action with off course error. To complete installation of the wind vane attachment, the feedback drive cord emerging from the base of the mounting mast must be connected to the pushrod. You will see that when the feedback cord is pulled out of the mounting mast against spring tension, backlash free rotational movement of the wind vane transducer results.
Two small blocks are provided for leading the feedback cord to the tiller. Normally only one block is necessary to obtain a clear run out but. occasionally two blocks may be necessary to avoid obstructions such as the mainsheet. The final fairlead should be positioned aft of the actuator unit as shown so that the final run of the feedback cord is orientated nearly at right angles to the tiller. It is important that the final fairlead is positioned below the centreline of the pushrod so that the spring tension on the cord has a tendency to pull the pushrod down onto the tiller pin.

Feedback Linkage

Finally, a loop is formed on the end of the feedback cord after cutting to length and made fast by means of the plastic adjustor slide provided. The end of the loop is positioned so that the feedback cord is just under tension when attached to the hook on the end of the pushrod in the fully retracted position. This ensures that the feedback cord is under tension over the full stroke of the pushrod. If the feedback cord is over tensioned, the remaining free scope of movement may not be sufficient to accommodate the full stroke of the pushrod and may cause damage to the feedback mechanism at the full extremity of pushrod travel. After adjusting the cord tension as described above, carefully check that the remaining scope of feedback cord movement is sufficient to accommodate the full stroke of the pushrod. After rigging the feedback cord, check that the wind vane transducer head rotates smoothly over the full stroke of pushrod movement. Backlash free vane head movement is essential to ensure accurate steering performance.

Operation

Functional test procedure
Operation under compass control Hold the unit towards the tiller and rotate the compass dial until the cardinal point graduations are approximately aligned with your main steering compass. Switch to calm and note that the north graduation on the compass dial then automatically homes to magnetic north. After completing the installation you should carry out the following functional test to familiarise yourself with the system before attempting sea trials. The autopilot is fitted with a 4 position thumb operated rotary switch located on the upper case. The autopilot is switched off when the thumb control wheel is in the fully anti-clockwise position. The remaining 3 positions of the control switch provide the following functions. Calm selects compass conditions.

operation

'calm'

weather

Rough selects compass operation for 'rough' sea conditions. In this position minor yawing motions caused by wave action are neglected. The autopilot will respond only to changes in mean course, and thus the duty cycle and power consumption will be substantially reduced. Vane selects wind vane control and enables convenient transfer of control mode when the wind vane attachment is fitted. Main Control Switch
Rotate the compass dial in small increments until the end of the pushrod remains settled over the tiller pin and clutch onto the tiller. Rotate the compass dial clockwise to retract the pushrod and anti-clockwise to extend it. Note that after making adjustments, it is necessary to release the compass dial to allow the compass to realign with the earth's magnetic field. If the yacht is swinging about its mooring, you will see that small variations in heading cause the unit to apply corrective action to the rudder. Now switch to rough and note that the frequency of corrective action is reduced.
Rotate the mounting mast a little further and note how the tiller takes up a new position to one side. This is how trim corrections are made for weather or lee helm when under sail. Finally, tilt the vane head back until the vane is nearly horizontal. This de-sensitises the wind vane, and you will note that the frequency of corrective rudder action is noticeably reduced. Operation under sail Preferably, initial trials should be carried out in reasonably calm conditions and with plenty of sea room. familiarisation procedure is
Operation under wind vane control following If the system is fitted with a wind vane attachment The the following familiarisation test may be carried recommended. out. Compass control Connect the wind vane jack plug to the main actuator and attach the feedback cord to the end of the pushrod. Set the wind vane head into its most sensitive position by tilting the head forward until the vane is almost vertical. Then grip the mounting mast just above its base and slowly rotate until the vane feathers into wind. In this position the vane will flutter evenly between the buffers. Switch over to vane to transfer the sensing mode to wind vane control. Note that small variations in wind direction will now cause the actuator unit to apply corrective action to the rudder. This is how the Autohelm 1000 functions when under sail.

Steer onto a fixed heading under engine or sail and hold the course steady. Holding the pushrod towards the tiller, rotate the compass dial until it is approximately aligned with the yacht's main steering compass and switch to calm. Allow the compass to automatically align with the earth's magnetic field and then adjust the compass dial further until the end of the pushrod is approximately positioned over the tiller pin. Clip the pushrod onto the tiller and allow the autopilot to take over.
After allowing the boat to steady onto an automatically controlled heading, carry out small incremental adjustments to the compass dial until the vessel steadies on to the desired heading. Note that clockwise adjustment of the compass dial will alter course to port.
Note that to adjust the yacht's heading you rotate, the vane stanchion in the same direction as you would the tiller. You will find also that to trim your course only very small movements should be applied to the vane stanchion. Repeat the above procedure broad reaching and finally running down wind by progressively slackening the sheets and slowly rotating the vane to bring the vessel onto the new headings.
The vessel may now be steered onto any other heading by adjusting the compass dial. If the autopilot appears to be working continuously due to sea conditions, switch over to rough. The rate Disengagement of working will then reduce substantially. The pushrod is held into engagement with the tiller pin merely by the weight of the actuator unit. This Wind vane control When the system is fitted with a wind vane method of engagement is secure and has been adopted attachment it will in general be easier to set up for safety reasons to allow the pushrod to be under compass control first as described above, and easily disengaged when manual override becomes necessary. then to switch over to wind vane control. First trials under wind vane control are best Operating hints carried out when sailing to windward slightly off the wind Sail balance It is always advisable when sailing under automatic When the vessel is sailing steadily under a pilot control to pay strict attention to sail magnetically controlled heading, the wind vane balance. Good sail balance is particularly mast should be rotated to feather the vane to essential in gusty conditions and strong winds. wind. When a yacht is sailing badly out of balance, Switch over to vane and the actuator will then sudden gusts will generally cause it to luff violently to windward. When hand steering, this respond to variations in wind direction. tendency is corrected by applying sufficient weather helm to hold the original course until the When the vessel has steadied onto a windcontrolled heading, carry out small rotational gust subsides. A simple autopilot, however, does adjustments to the vane mounting mast until you not understand the need for weather helm and will, are satisfied that you are sailing on an optimum therefore, allow the yacht to luff to windward until sufficient helm is applied to achieve a new course to windward. state of balance.

Furthermore, it will maintain the luffed heading for as long as the need for increased weather helm 'persists. Contrary to popular opinion a proportional steering autopilot will not maintain a constant heading when the yacht's balance changes. Thus sailing badly out of balance in varying wind strengths will always give rise to excessive course wander. This tendency is best overcome by reefing the mainsail slightly more than you would when hand steering. On longer passages when a constant compass course may be steered for hours on end, variations in wind strength and direction will almost certainly cause changes in helm balance. For the same reasons given above, variations in standing helm will cause the autopilot to steer slightly away from the set course. In the case of the Autohelm 1000, if 5 degrees of additional weather helm is required as a result of rising wind strength, for example, the course steered by the autopilot will correspondingly change by approximately 20 degrees. Thus when passage making, if a change in compass heading is observed, the original course should ideally be restored by re-trimming sails to obtain the original state of balance. Alternatively, providing weather helm has not become excessive, the yacht may be trimmed back on to the original heading by re-adjusting the autopilot's compass setting.
Vane sensitivity adjustment Normally the wind vane is set almost vertically to operate at near maximum sensitivity. High vane sensitivity is essential to ensure optimum penetration to windward when sailing close-hauled and usually does not result in excessive actuator activity. The sensitivity of the vane may be reduced by tilting the entire unit backwards on its clevis mounting. This has the effect of increasing the 'dead band' of the vane sensor by allowing up to a maximum of 15 degrees course variation to occur before automatic correction is applied. When it is not necessary to sail a very accurate course, lowering the sensitivity of the vane in this manner will reduce the number of corrections made and hence reduce power consumption. In heavy weather or turbulent wind conditions, the duty cycle of the autopilot can usually be lowered by de-sensitising the wind vane. De-sensitising the wind vane under these conditions will not affect the accuracy of the mean course steered.
Selection of transducer When the wind vane attachment is not fitted it is possible to use the basic magnetic sensing unit under both engine and sail. It should be borne in mind, however, that the compass sensor is internally gimballed to cope with a maximum angle of heel of 30 degrees, and will not operate beyond this heel angle. It will also be necessary to lay slightly off the wind when sailing long passages close-hauled to prevent becoming backed by gradual shifts in wind direction. Wind vane control is always more efficient sailing close-hauled when it will ensure immediate advantage is taken of changing direction to ensure optimum penetration windward. In steady wind conditions, wind control will. Usually give best results on other points of sailing. when that wind to vane all

Tacking in enclosed waters When the wind vane attachment is fitted the system can be set up to automatically tack the vessel by alternately switching over from compass to wind vane. This is done by setting the vane to control on the longest tack and the compass sensor on the other. Tacking is then simply achieved by switching over from one mode to the other leaving you free to handle the sheets.

Watch-keeping

As a final caution. it is very easy to relax permanent watch-keeping, and this temptation must be avoided however clear the sea ahead may appear to be. Remember that a large ship can cover two miles in five minutes -just the time it takes to brew a cup of coffee! Stowage After use, the Autohelm 1000 system is easily stowed by unclipping the actuator unit from its mounting, and removing the vane transducer from its mounting mast. The entire system can then be stowed easily in a small locker. Maintenance All moving parts of the system have been lubricated for life at the factory. Therefore no maintenance whatsoever will be required. Should a fault develop, the entire unit should be returned in the original packing case for repair and servicing, which will be carried out speedily and at a moderate cost.
When the wind is abaft the beam and unsteady in strength and direction surprisingly large variations I in apparent wind direction can occur. Under these conditions compass control generally improves course keeping accuracy.
Raymarine Ltd. Anchorage Park Portsmouth Hampshire PO3 5TD Tel 3611

Fax 4642

www.raymarine.com