Using it well · 4 minute read
Autopilot Track mode route checklist
Check route legs, chart scale, cross-track limits and waypoint turns before letting a marine autopilot follow navigation data from your chartplotter.
A route drawn on a chartplotter is an instruction to review, not evidence of a safe passage. Before engaging a route-following mode, inspect every leg and understand how your particular pilot responds at a waypoint. Automatic steering does not validate the chart, the route or the water ahead.
Key facts
- Review
- Every leg at a useful chart scale
- Understand
- Waypoint-transition behaviour
- Allow
- Sea room for correction and turning
- Monitor
- Position and surroundings continuously
Inspect every Track-mode route leg and charted hazard
Check the start point, destination and each intermediate waypoint. Zoom in enough to inspect obstructions, depth information and route geometry without losing the wider context. Look for accidental shortcuts across land, shoals or restricted areas.
Confirm the chart information and updates appropriate to the passage. A saved route from a previous season or another boat needs fresh review. Different draft, tide or harbour works can make an old plan unsuitable.
Check the boat’s position relative to the leg
Understand how the pilot will join the active leg from the current position. A correction towards the route may be a substantial turn. Do not assume the boat will first travel straight to the waypoint you are looking at.
Select a safe place and time to engage the mode, with the helm attended and adequate sea room. Read any direction or turn prompt before accepting it. If the proposed response is unclear, remain in a mode you understand or steer manually.
Understand each waypoint transition
Different systems use different prompts and turn behaviour. Read the exact operating manual and practise in suitable open water. A waypoint is a navigation reference; it should not be placed where a large automatic turn would create a hazard.
Brief the watch on the next transition and who may acknowledge it. Avoid handing over just as an unfamiliar turn prompt appears. The incoming watch needs to know the route and the expected steering response.
Set cross-track and waypoint limits for the route
Review cross-track and arrival alarms against available sea room and the capabilities of the installation. No single threshold suits open water, a narrow approach and a crowded harbour. Explain any changed setting at the watch handover.
An alarm does not prove the remaining water is safe. Keep checking the vessel’s actual position, nearby traffic and conditions. The planned route is one input to navigation, not a replacement for observation.
Define manual takeover points before engaging Track mode
Traffic, floating debris, changed conditions or uncertainty may require manual control and a revised plan. Taking over is a normal part of using a pilot. Do not keep the boat on a line simply because the equipment can hold it accurately.
After an avoidance manoeuvre, reassess how the boat would rejoin the route before re-engaging. Confirm the active waypoint and proposed turn again. A route that was safe to join earlier may require a different approach now.
Questions
Frequently asked
Does the pilot check depth along a route?
Do not assume it does. Route-following steering does not establish that a leg is navigable for your boat.
Will every pilot turn automatically at a waypoint?
Behaviour varies by equipment and setup. Read the specific manual and demonstrate the transition in suitable conditions.
Can I use a route made by another skipper?
Only after independently reviewing it for your boat, current information and conditions. Treat shared routes as planning inputs.
What happens after I steer around traffic?
Reassess position, active waypoint and rejoining behaviour before returning to Track mode. Do not assume the previous engagement remains appropriate.
Practise autopilot operation with an instructor
Habits are learned at the helm with someone watching. The training section explains what a good instructor covers and where to find one in your state.