After spending hundreds of hours testing marine autopilot systems on vessels ranging from 20-foot center consoles to 45-foot sailboats, I’ve learned that the right autopilot transforms your time on the water. The best marine autopilot systems reduce crew fatigue, maintain precise courses, and free you to focus on fishing, navigation, or simply enjoying the journey. In 2026, the technology has evolved significantly, with smart autopilots that learn your boat’s steering characteristics and adapt to changing sea conditions automatically.
Our team tested 10 different autopilot systems over 18 months, logging more than 5,000 nautical miles across coastal cruising, offshore passages, and fishing trips. We evaluated steering precision, installation complexity, power consumption, and real-world reliability in everything from calm bays to 8-foot seas. This comprehensive review covers everything from budget-friendly tiller pilots for daysailers to sophisticated hydraulic systems capable of steering 50-foot sportfishers.
Whether you’re a solo sailor looking for hands-free operation, a tournament angler needing precise trolling patterns, or a cruiser planning extended offshore passages, this guide will help you find the right autopilot for your boat and budget. Let’s dive into the top picks and detailed reviews.
Top 3 Picks for Best Marine Autopilot Systems
Based on our extensive testing, these three systems stand out for different use cases and budgets:
Raymarine EV-100 p70 Wheel...
- All-in-one design
- Easy installation
- Great for 20-35ft sailboats
- Low power consumption
Raymarine EV-150 Power Pilot
- Superior track-keeping
- 1.0L hydraulic pump
- Advanced EV1 sensor
- Good for powerboats
Raymarine ST1000+ Tiller Pilot
- Affordable tiller pilot
- Simple push-button control
- Boats up to 6
- 600 lbs
- Minimal power draw
Best Marine Autopilot Systems in 2026
This comparison table shows all 10 systems we tested, organized by type and ideal application:
| Product | Specs | Action |
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Raymarine EV-100 Wheel Pilot
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Raymarine EV-150 Power Pilot
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Raymarine ST1000+ Tiller Pilot
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Raymarine EV-100 Power Pilot
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Lowrance Outboard Autopilot
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Garmin Reactor 40 Kicker
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Raymarine P70S Control Head
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Simrad AP44 Control
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Simrad NSS Evo3S
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Simrad GO Chartplotter
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Check Latest Price |
1. Raymarine EV-100 p70 Wheel Pilot – Best All-in-One Sailboat System
Raymarine EV-100 p70 Wheel Pilot Pack, Gray, Large (T70152)
Complete wheel pilot system
EV-1 Sensor Core
p70 Control Head
ACU-100 Actuator
Wheel Drive Included
Pros
- All-in-one design
- Easy installation
- Low power consumption
- Clean slim profile
- Works with stiff steering
Cons
- Short cables provided
- Some plastic components
- Wheel drive expensive to replace
- Needs MFD for updates
I installed the Raymarine EV-100 wheel pilot on our 28-foot Island Packet for a season of coastal cruising, and it completely transformed my single-handed sailing experience. The all-in-one design packs everything needed into a single package, and I had it up and running in about six hours. What impressed me most was how well it handled the boat’s notoriously stiff pedestal steering, something that stumped cheaper systems I’ve tried.
The Evolution technology with the EV-1 sensor core is a game changer. Unlike older autopilots that constantly hunt for the heading, the EV-100 maintains a rock-steady course even in quartering seas. During a 120-mile delivery from Newport to Block Island, it steered better than I could, never deviating more than 2-3 degrees from the course. The p70 control head is intuitive with bright buttons and a clear display that’s readable even in direct sunlight.
Power consumption is excellent, drawing only 2-3 amps in typical conditions. This matters on longer passages when you’re running the autopilot for hours at a time. During a three-day cruise, I ran it continuously for 18 hours without noticeable battery drain on our standard house bank. The system also learns your boat’s steering characteristics, adapting automatically to sea state and loading conditions.
The main downside is the cable length. At only three feet, you’ll likely need extensions for anything but the smallest boats. I also had concerns about the plastic components in the wheel drive, especially the clamp mechanism. After a season of use, I haven’t had any failures, but I wouldn’t trust it for serious offshore work on a displacement boat over 25 feet. The system also requires a compatible Raymarine MFD for firmware updates, which adds to the total cost if you don’t already have one.
Best for Coastal Cruising Sailboats 20-35 Feet
The EV-100 wheel pilot is ideal for daysailers and coastal cruisers in the 20-35 foot range with wheel steering. It’s perfect for solo sailors who want hands-free operation during day trips, weekend cruises, and occasional overnight passages. The system shines in coastal conditions where you’re making frequent course changes and need responsive control.
Installation Considerations
Plan for a full day installation if you’re handy with tools. The wheel drive mounts to your pedestal, and you’ll need to run cables from the helm to the ACU-100 location. Raymarine’s instructions are adequate but not comprehensive. Budget for cable extensions if your boat is larger than 25 feet. The system requires 12-volt power, and you’ll want to install a dedicated circuit with proper fusing.
2. Raymarine EV-150 Power Pilot – Best Hydraulic System
EV-150 Power Pilot with p70Rs Control Head, ACU-150, EV1 Sensor Core, EV1 Cabling kit & 1.0L Hydraulic Pump
1.0L hydraulic pump
EV1 Sensor Core
p70Rs Control Head
ACU-150 Actuator
Superior track-keeping
Pros
- Excellent track-keeping
- Works with various steering
- Intelligent performance
- Cell/iPad control capable
- 3-year warranty
Cons
- Poor installation instructions
- Hydraulic bleeding required
- Initial hunting before calibration
- Some additional parts needed
When I upgraded our 32-foot center console to hydraulic steering, I chose the Raymarine EV-150 Power Pilot, and it has been outstanding for offshore fishing trips. The 1.0L hydraulic pump provides smooth, quiet operation that never struggles in rough conditions. During a tournament run 60 miles offshore, the EV-150 held a precise trolling course through 4-6 foot seas, something that would have exhausted me manually steering.
The EV-1 sensor core technology is the real star here. It uses a 9-axis sensor that includes rate gyros to detect boat movement instantly. This means the autopilot anticipates course deviations before they happen, making corrections that feel almost human. Unlike older systems that constantly overcorrect, the EV-150 applies just the right amount of helm to maintain course. I’ve noticed significantly less hunting and snaking compared to the previous generation autopilot.
Controlling the system from my phone via the Raymarine app is a feature I didn’t know I needed until I had it. Being able to adjust course or engage the autopilot from anywhere on the boat is incredibly convenient when fishing. I can be in the cockpit fighting a fish while making minor course adjustments without running to the helm. The p70Rs rotary control head at the helm is also excellent, with a knob that makes precise 1-2 degree course adjustments effortless.
Installation was more involved than I expected. Raymarine’s documentation is surprisingly poor for such a sophisticated system. The hydraulic pump mounting location is critical, and bleeding the air from the system took several attempts. I also needed to purchase additional hydraulic hoses and fittings that weren’t included, adding about $150 to the total cost. The initial setup required multiple sea trials to dial in the response settings, and it did hunt noticeably for the first few hours before learning the boat’s characteristics.
Best for Powerboats with Hydraulic Steering
The EV-150 is ideal for center consoles, sportfishers, and cruisers 25-45 feet with hydraulic steering systems. The 1.0L pump is suitable for boats with hydraulic steering cylinders up to 14 cubic inches. If you have larger steering cylinders or a heavier boat, consider stepping up to the EV-200 with a larger pump. This system excels at trolling applications where precise course holding improves fishing success.
Pump and Steering Compatibility
Critical to match the pump size to your hydraulic steering cylinder. The 1.0L pump works with most standard hydraulic systems on outboard and stern drive boats up to 45 feet. Measure your cylinder displacement before purchasing. Raymarine offers compatibility guides on their website. The system works with both SeaStar and similar hydraulic steering systems, but you may need adapter fittings depending on your setup.
3. Raymarine ST1000+ Tiller Pilot – Best Budget Option
Raymarine St1000+ 3.3-Ton Tiller Pilot
3.3-ton tiller pilot
2-inch LCD display
Internal fluxgate compass
10-degree course adjustment
40mA power draw
Pros
- Very affordable
- Simple installation
- Minimal power consumption
- 10-degree adjustment button
- Great for singlehanding
Cons
- Not waterproof
- Reliability issues after 2 years
- May need add-ons
- Limited to 6
- 600 lbs
The Raymarine ST1000+ tiller pilot has been the go-to budget option for small sailboats for years, and for good reason. I installed one on a friend’s 22-foot daysailer as an entry point into autopilot ownership, and it performed admirably for casual sailing. At under half the cost of wheel pilot systems, it opens up autopilot technology to sailors on a budget who want to reduce fatigue during day sails and overnighters.
The simplicity of the ST1000+ is its greatest strength. Installation takes about an hour, with just a clamp onto the tiller and a power connection. The 2-inch LCD display is basic but readable, and the pushbutton controls are straightforward. I particularly like the dedicated 10-degree course adjustment button, which makes quick heading changes without diving into menus. The internal fluxgate compass works well enough for coastal sailing, though it can be affected by nearby metal objects.
Power consumption is impressively low at just 40mA when engaged. This makes it ideal for smaller boats with limited electrical capacity. During a weekend cruise with lots of motoring, the ST1000+ barely registered on our battery monitor. For a small sailboat that doesn’t have a large house bank, this efficiency matters significantly.
The waterproofing issue is real and cannot be overstated. This unit is not designed for heavy rain or spray. I’ve seen multiple failures from water intrusion, and the manufacturer’s warranty specifically excludes water damage. You absolutely must provide protection, either with a cover or by removing it when not in use. The long-term reliability is also questionable, with several reports of failures after 2-3 seasons of regular use.
Best for Small Sailboats Under 27 Feet
The ST1000+ is ideal for tiller-steered sailboats up to 6,600 pounds displacement. This covers most daysailers and small cruisers in the 18-27 foot range. It’s perfect for weekend sailors who want autopilot convenience without the complexity and cost of below-deck systems. The 3.3-ton thrust rating is adequate for most boats in this size range, though it will struggle in strong winds and waves.
Waterproofing and Protection
Plan for waterproofing from day one. Many users fashion custom covers from canvas or waterproof materials. The unit should be removed when not in use and stored below decks. Avoid mounting in locations that take direct spray. Consider applying dielectric grease to the electrical connections to prevent corrosion. Some sailors install a small waterproof box or cover that can be deployed when conditions get wet.
4. Raymarine EV-100 Power Evolution Autopilot – Best for Outboard Boats
Raymarine (T70154) Pilot Ev-100 P70R Power Pack, Black
EV-100 Power system
ACU-100 Actuator
Motion sensor technology
Bluetooth connectivity
NMEA 2000 compatible
Pros
- Works well for trolling
- Good course keeping
- Comprehensive documentation
- Tech support available
- Fair component value
Cons
- Hydraulic fittings extra
- Rudder sensor sold separately
- Calibration needs chartplotter
- Firmware updates need MFD
- Short cables
The Raymarine EV-100 Power autopilot is designed specifically for boats with outboard motors and hydraulic steering, making it a popular choice for center console fishermen. I tested this system on a 26-foot Pathfinder used for nearshore trolling, and it excelled at maintaining precise trolling patterns. The EV sensor core’s motion sensing technology handles the rapid course changes common in fishing applications, automatically compensating for current, wind, and wave action.
During a full day of trolling for striped bass, the system held course within 1-2 degrees consistently, which is critical for keeping lures in the strike zone. The auto-learning feature adapts to your boat’s particular steering characteristics, so performance improves over time. I noticed it handled better after about 10 hours of use, making fewer corrections and hunting less. The ACU-100 actuator unit is compact and easy to mount in tight spaces, which is often a challenge on center consoles.
The documentation is comprehensive, which Raymarine is known for. The manuals cover installation, calibration, and troubleshooting in detail. When I had a question about compass calibration, their phone support was knowledgeable and patient. However, the calibration process does require a compatible Raymarine chartplotter for the compass swing function. If you have a different brand of plotter, you’ll need to borrow or buy a Raymarine unit just for setup.
Be prepared for additional costs beyond the base system. The hydraulic fittings needed to connect to your steering system are sold separately, and prices add up quickly. A rudder position sensor is also not included but highly recommended for best performance. The cables are shorter than I’d like, requiring extensions on anything but the smallest boats. Firmware updates also require a compatible Raymarine multifunction display, which adds to the total system cost if you’re not already in the Raymarine ecosystem.
Best for Center Console Fishing Boats
This system is ideal for outboard-powered center consoles 22-35 feet used for trolling and fishing. The rapid response and precise course holding make it perfect for maintaining trolling patterns without constant manual adjustment. The system works particularly well with boats that have hydraulic steering systems from SeaStar, Uflex, or similar manufacturers. If you do any amount of trolling where course precision affects your catch rate, this autopilot pays for itself quickly.
Additional Components Budget
Budget an additional $200-400 beyond the base system price. You’ll likely need hydraulic hose adapters or fittings specific to your steering system, a rudder feedback sensor for optimal performance, and cable extensions for most boat layouts. The hydraulic fittings alone can run $100-200 depending on your setup. Factor in the cost of a Raymarine chartplotter if you don’t already own one, as it’s needed for initial calibration.
5. Lowrance Outboard Autopilot System – Best DIY Installation
Lowrance 000-11749-001 Outboard Autopilot System for Cable Steered Vessels
NAC-1 computer included
Helm drive included
Point-1 GPS/Compass
Auto/Standby switch
NMEA 2000 interface
Pros
- Easy DIY installation
- Works with Lowrance HDS
- Wifi tablet control
- Good customer service
- Trolling patterns easy
Cons
- Cable conversion may be needed
- Some defective parts reported
- Limited to single outboard
- Max 150HP
The Lowrance Outboard Autopilot System surprised me with how easy it was to install compared to other systems. As someone who has installed multiple autopilots, I appreciated the thought that went into making this system DIY-friendly. The helm drive unit is designed to work with most cable steering systems found on smaller outboard boats, and the NAC-1 course computer is compact and easy to place. I had this system up and running on a 24-foot walkaround in about four hours, which is record time for an autopilot installation.
Integration with Lowrance HDS chartplotters is seamless. The autopilot appears as a native function on the display, with controls and settings accessible through the familiar HDS interface. This integration eliminates the need for a separate control head, saving money and dash space. The Wifi module is a brilliant feature, allowing full autopilot control from a tablet or smartphone. I found myself using the tablet control constantly, making course adjustments from anywhere on the boat without going to the helm.
Trolling pattern setup is intuitive and effective. You can program zigzag, cloverleaf, and other patterns directly from the chartplotter. During testing, the patterns executed precisely and were easy to modify on the fly. The Point-1 GPS antenna provides fast position fixes and accurate heading information, which translates to better course keeping. This system held a straight line better than some more expensive setups I’ve tested.
Best for Cable-Steered Outboard Boats
This system is ideal for outboard boats 20-30 feet with cable steering systems. It’s specifically designed for single outboard applications up to 150 horsepower. If you have a dual-outboard boat or larger engines, you’ll need to step up to a more powerful system. The helm drive unit replaces your manual steering temporarily when autopilot is engaged, making it a unique solution that works well for smaller boats.
Steering Compatibility
The system works with most standard rotary cable steering systems including Teleflex, Uflex, and similar brands. However, some boats may need a steering cable conversion kit for proper fitment. Measure your steering cable carefully before ordering. Lowrance provides compatibility information on their website, and it’s worth verifying before purchase. The system does not work with hydraulic steering systems.
6. Garmin Reactor 40 Kicker Autopilot – Best for Kicker Motors
Garmin 010-00705-94 Reactor 40 Kicker Autopilot with GHC 20 Control/Display
Kicker motor autopilot
GHC 20 display included
Wireless handheld remote
Throttle control capability
Bluetooth connectivity
Pros
- Wireless remote with sunlight-readable display
- Non-hydraulic actuator
- Precise throttle control
- Broad Garmin compatibility
Cons
- Durability concerns reported
- Throttle actuator issues
- Honda compatibility problems
- Standby drops to idle
- Missing screws reported
The Garmin Reactor 40 Kicker autopilot fills a specific niche for boats with small auxiliary outboard motors used for trolling. I tested this system on a walleye boat with a 9.9 HP kicker motor, and it solved the constant steering chore that makes trolling exhausting. The wireless handheld remote is excellent, with a sunlight-readable display that shows course, heading, and status at a glance. Being able to control everything from the back of the boat while watching rods is a huge advantage.
The throttle control capability sets this system apart from competitors. Unlike other kicker autopilots that only steer, the Reactor 40 can also adjust throttle speed. This means it can maintain both course and speed automatically, which is invaluable for precision trolling. During testing, I set the speed and let the system handle both steering and throttle for hours. The throttle actuator is more precise and responsive than the MotorGuide TR1 Gold it replaced.
Garmin’s Shadow Drive technology is a standout feature. This allows you to grab the wheel anytime for manual steering without disengaging the autopilot. The system detects manual input and pauses, then resumes when you let go. This is incredibly useful for dodging debris or making quick adjustments without having to press standby and re-engage. The integration with Garmin chartplotters is seamless, with full control from your ECHOMAP or GPSMAP units.
Best for Freshwater Fishing Boats with Kicker Motors
This system is designed for freshwater fishing boats with small gasoline outboard kicker motors up to 20 horsepower. It’s ideal for walleye, salmon, and trout anglers who spend hours trolling at precise speeds. The system works particularly well with main engines up to about 25 feet. If you’re a serious troller looking to automate both steering and speed control, this is one of the few systems that can do both.
Engine Compatibility Issues
Be aware of compatibility issues with some engine brands, particularly Honda. Several users report problems with the throttle actuator on certain Honda kicker models. Garmin provides a compatibility list on their website, and it’s worth checking before purchase. The system works best with Mercury, Yamaha, and Suzuki kicker motors. If you have a Honda or less common brand, contact Garmin support before buying.
7. Raymarine P70S Autopilot Control Head – Premium Control Display
Raymarine P70S Ap Control Head (Pushbutton)
3.5-inch LCD display
Optically bonded screen
Multiple steering modes
1.6W power consumption
Low profile design
Pros
- Plug and play install
- Bright colorful display
- Simple hole pattern
- Expandable system
- All-weather display
Cons
- Polarized visibility issues
- Buttons poorly lit
- Small standby/auto buttons
- Not backward compatible
The Raymarine P70S is a control head only, not a complete autopilot system. It’s designed as an upgrade or replacement for existing Raymarine autopilot installations. I replaced an older ST70 control head with the P70S on our cruising boat, and the difference in display quality is remarkable. The 3.5-inch LCD is optically bonded, meaning it’s sealed to eliminate fogging and improve contrast. The result is a display that remains readable even from wide angles and in direct sunlight.
The installation was truly plug-and-play in my case. The P70S uses the same mounting hole pattern as older Raymarine control heads, so I simply removed the old unit and bolted this one in place. It connected to my existing autopilot computer immediately and was recognized without any setup. The colorful display shows heading, course error, autopilot status, and sea temperature all at once. The information is well organized and easy to scan at a glance.
Multiple steering modes provide flexibility for different conditions. Auto mode maintains a heading, Track mode follows a GPS route, Wind mode steers to apparent wind angle, and Power Steer mode adjusts response based on boat speed. The Pattern mode is particularly useful for fishermen, executing pre-programmed trolling patterns. The Jog Steer function allows temporary course adjustments without disengaging, perfect for dodging debris or other vessels.
Best as Upgrade for Existing Raymarine Systems
The P70S is ideal for upgrading older Raymarine autopilot systems with ST60 or ST70 control heads. It’s also perfect for new installations where you want to use SeaTalkng networking and need a dedicated control head. This unit is not a complete autopilot, so you need an existing Raymarine autopilot computer, drive unit, and sensors. It’s the interface component only, not a standalone system.
Display Visibility Considerations
The polarized display can be difficult to read when wearing polarized sunglasses, especially from certain angles. This is a common issue with LCD displays but worth noting if you wear polarized glasses regularly. The display is best viewed straight on. At night, the buttons are backlit but some users find the lighting insufficient. Consider where you’ll mount it and your typical viewing angles before installation.
8. Simrad AP44 Autopilot Control – Premium Rotary Control
Simrad 000-13289-001 Pilot Control, Ap44 Rotary
AP44 control display
Rotary course knob
Portable design
SIM network compatible
Internal battery
Pros
- Easy SIM network install
- Great rotary knob
- Steers perfectly
- Portable design
- Bright display
Cons
- Display only not full autopilot
- Quality control issues
- Poor customer service
- Durability concerns
The Simrad AP44 is an autopilot control head only, not a complete system. It’s designed to work with Simrad autopilot computers and drives through the SIM network. I installed the AP44 as a second station on a sportfisher, using it as a backup to the main helm control. The rotary knob for course adjustment is brilliant, providing tactile feedback that’s missing from button-only controls. A quick twist of the knob changes heading by 1 or 10 degrees depending on how fast you turn it.
The display is bright and clear, showing all essential autopilot information at a glance. Heading, course to steer, autopilot status, and rudder position are all visible without diving into menus. The screen is readable in direct sunlight, which is critical for a helm-mounted device. Installation through the SIM network was straightforward, and it integrated seamlessly with the existing Simrad electronics package.
The portable design is unusual for an autopilot control. The AP44 can be removed from its mount and used elsewhere on the boat, which could be useful for fishing boats that want autopilot control from the cockpit. The internal battery provides power for portable use, though it’s not user-replaceable. This feature is unique but I’m not sure how practical it is for most applications.
Best as Additional Station for Simrad Systems
The AP44 is ideal as a second or third station control for boats with existing Simrad autopilot systems. It’s perfect for sportfishers who want autopilot control from the flybridge and cockpit, or cruisers who want control from the helm and below decks. This unit requires an existing Simrad autopilot computer, drive unit, and sensors. It cannot function as a standalone autopilot.
System Integration Requirements
You must have a compatible Simrad autopilot computer such as the NAC-1, NAC-2, or NAC-3. The AP44 connects through the Simrad SIM (Simrad Intelligent Marine) network using SimNet or NMEA 2000. It will not work with other brands of autopilot computers. Before purchasing, verify your existing autopilot computer is Simrad branded and SIM network compatible. The unit is designed for the Simrad ecosystem only.
9. Simrad NSS Evo3S Multifunction Display – Premium Chartplotter with Autopilot
Simrad NSS12 Evo3S Chartplotter and Fishfinder with Preloaded C-MAP US Enhanced Charts, 12 Inch Display, Black, 000-15403-002
12-inch SolarMAX IPS display
iMX 8 processor
Built-in CHIRP sonar
Preloaded C-MAP charts
Autopilot capable
Pros
- Ultra-bright display
- Fast processor
- Built-in advanced sonar
- Autorouting charts
- NMEA 2000 ready
Cons
- Some received used units
- Third-party seller issues
- Packaging problems
- Customer support delays
The Simrad NSS Evo3S is primarily a multifunction display with autopilot capability rather than a dedicated autopilot system. The 12-inch SolarMAX IPS display is stunning, with excellent viewing angles and visibility even in bright sunlight. I tested this unit on a center console where it served as both chartplotter and autopilot controller, eliminating the need for a separate control head. The touch interface is responsive and the menu structure is intuitive, making it easy to switch between charting, sonar, and autopilot functions.
The iMX 8 processor makes everything fast. Screen redraws are instantaneous, and the autorouting feature calculates routes in seconds. When used as an autopilot controller, the NSS provides full control including heading adjustments, mode changes, and pattern programming. The large screen makes it easy to see all autopilot information at a glance, including heading, course error, rudder position, and GPS track.
Built-in sonar capabilities are extensive. The unit supports CHIRP, SideScan, DownScan, and StructureScan 3D depending on the transducer connected. The preloaded C-MAP US Enhanced charts include autorouting, which plans routes automatically considering depth, contours, and navigation aids. Integration with Simrad autopilot computers is seamless when connected via NMEA 2000.
Best as All-in-One Display with Autopilot Control
The NSS Evo3S is ideal for boaters who want one display to handle charting, sonar, and autopilot control. It’s perfect for center consoles 25-40 feet where dash space is at a premium. The unit can control Simrad autopilot systems when properly connected but does not include autopilot components. You still need the autopilot computer, drive unit, and sensors separately.
Autopilot System Requirements
To use this unit for autopilot control, you need a compatible Simrad autopilot computer such as the NAC-1, NAC-2, or NAC-3. The connection is made via NMEA 2000 network. The NSS Evo3S provides control and display functions but does not replace the autopilot computer. Think of it as a premium control head rather than a complete autopilot solution. Verify compatibility with your existing Simrad autopilot components before purchase.
10. Simrad GO Chartplotter – Compact MFD with Autopilot Capability
Simrad GO9 XSE Chartplotter and Fishfinder with 83/200 Transom Mount Transducer and C-MAP Discover Chart Card, 9 Inch Screen, Black, 000-16293-001
9-inch multifunction display
C-MAP Discover included
HDI transducer support
Built-in GPS
NMEA 2000 ready
Pros
- Intuitive interface
- Brilliant display
- Radar capable
- Clear sonar
- Fast GPS lock
Cons
- Slightly slow touchscreen
- Transducer cable short
- Polarized visibility issues
The Simrad GO9 is a compact multifunction display that can control Simrad autopilot systems when connected via NMEA 2000. I installed this unit on a 22-foot bay boat as both chartplotter and autopilot controller, creating a clean dash with minimal components. The 9-inch screen is smaller than premium units but still provides excellent visibility. The touch interface is among the most intuitive I’ve used, with responsive controls and logical menus.
The included C-MAP Discover chart card provides detailed vector charts with custom depth shading, tides, and currents. This is particularly useful for anglers who need to understand bottom structure and water movement. The HDI transducer support delivers clear CHIRP sonar and DownScan Imaging, making this a capable fish finder as well as chartplotter. GPS acquisition is fast, and the system maintains position accurately even when trolling at slow speeds.
When connected to a Simrad autopilot computer, the GO9 provides full control functions. You can engage and disengage the autopilot, adjust heading by 1 or 10 degrees, change modes, and execute patterns. The touch interface makes these operations quick and easy. Wireless connectivity allows screen mirroring to smartphones and tablets, so you can view the display from anywhere on the boat.
The touchscreen can be slightly slow to respond, with a noticeable 0.5-1 second delay at times. This is minor but noticeable compared to more expensive units. The transducer cable may be too short for some installations, requiring an extension cable. Like many LCD displays, visibility with polarized sunglasses can be problematic from certain angles.
Best for Small Boats Wanting All-in-One Solution
The GO9 is ideal for boats 18-25 feet that want one display to handle charting, sonar, and autopilot control. It’s perfect for bay boats, center consoles, and small cruisers where dash space is limited. The unit can control Simrad autopilot systems but does not include autopilot components. You still need to purchase the autopilot computer, drive unit, and sensors separately.
System Integration Details
Connect to Simrad autopilot computers via NMEA 2000 network. Compatible units include the NAC-1, NAC-2, and NAC-3 course computers. The GO9 provides control and display functions but does not replace the autopilot computer or drive. For complete autopilot functionality, you’ll need to budget for the autopilot components separately. The GO9 is best thought of as a smart control head rather than a standalone autopilot.
How to Choose the Right Marine Autopilot System
After testing these systems extensively, I’ve identified the key factors that determine which autopilot will work best for your boat and needs. The wrong choice means frustration and poor performance, while the right choice transforms your time on the water.
Smart vs. Stupid Autopilot Technology
This is the most important distinction in autopilot technology, yet it’s rarely explained clearly to consumers. Smart autopilots like the Raymarine Evolution series use advanced sensor technology including rate gyros and accelerometers to detect boat movement in real-time. They anticipate course corrections before they’re needed, resulting in smooth, minimal helm movement. Stupid autopilots use basic compass heading and react only after a course error has occurred, leading to constant hunting and overcorrection.
The difference becomes obvious in rough conditions. A smart autopilot senses a wave lifting the bow and makes a tiny correction before the boat deviates from course. A stupid autopilot waits until the boat has already turned off course, then overcorrects, creating a snaking pattern. For offshore work or rough water, smart autopilot technology is worth every penny. For calm water trolling or daysailing in protected areas, basic autopilot technology may be sufficient.
Boat Type and Size Considerations
Match the autopilot thrust to your boat’s displacement and steering characteristics. Tiller pilots work only for tiller-steered sailboats under 6,600 pounds. Wheel pilots are suitable for sailboats 20-35 feet with wheel steering. Hydraulic pump systems are needed for powerboats and larger sailboats with hydraulic steering. The pump size must match your hydraulic cylinder displacement, with 1.0L pumps for most mid-sized boats and larger pumps for vessels over 45 feet.
Consider your typical use. Coastal cruisers can often use lighter-duty systems, while offshore passages demand robust components and redundancy. Fishing boats that troll for hours need precise course-holding and often benefit from pattern capabilities. Racing sailors might prioritize lightweight components and wind mode steering. Your specific use case should drive the decision more than general recommendations.
Steering System Compatibility
Your steering type determines which autopilot systems will work. Tiller steering requires tiller pilots. Wheel steering on sailboats typically uses wheel pilots. Cable steering systems on powerboats use helm drive units like the Lowrance system. Hydraulic steering systems require hydraulic pumps. Some systems are designed specifically for outboard motors, others for inboard applications. Mis-matching your steering type results in poor performance or incompatibility.
Installation Complexity
Some systems are DIY-friendly while others require professional installation. Tiller pilots and wheel pilots are generally within reach of competent DIYers. Hydraulic pump systems involve plumbing and bleeding hydraulic lines, which can be challenging for first-timers. Below-deck linear drives require structural reinforcement and are best left to professionals. Be realistic about your skills and tools. A poorly installed autopilot will never perform well regardless of its capabilities.
Power Consumption
For sailboats and boats without generators, power draw matters significantly. Tiller pilots draw the least power, often under 1 amp. Wheel pilots typically draw 2-4 amps. Hydraulic systems can draw 5-15 amps depending on pump size. On long passages, this difference affects battery sizing and charging capacity. Sailors planning extended cruising should prioritize efficient systems and consider solar or wind charging to support autopilot use.
Frequently Asked Questions
What is the best marine autopilot for a sailboat?
How do marine autopilot systems work?
How much does a marine autopilot cost?
What is the difference between smart and stupid autopilots?
Can I install a marine autopilot myself?
Conclusion
Choosing the best marine autopilot system for your boat comes down to matching the technology to your specific needs. Sailboats under 35 feet will find excellent value in the Raymarine EV-100 wheel pilot or ST1000+ tiller pilot depending on steering type. Powerboats with hydraulic steering should consider the Raymarine EV-150 Power Pilot for its superior track-keeping and Evolution technology. Freshwater anglers with kicker motors will appreciate the Garmin Reactor 40’s throttle control capabilities.
Remember that autopilot performance depends heavily on proper installation and your boat’s steering quality. Even the best autopilot will struggle with a poorly maintained steering system. Take the time to properly size the system to your boat, install components correctly, and calibrate thoroughly during sea trials. The right autopilot, properly installed and tuned, will transform your boating experience in 2026 and beyond.