Heading, speed, position and marks for the coach boat. Needs location and motion access. Keep the screen awake and mounted flat.
No fix
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HEADING
RECIP---°
Course up
Speed (SOG)
--kn
Course (COG)
--°
Position ▸ open in maps
Waiting for GPS fix…
Marks & PinsNo fix
Bearing (true)
---°
Range
--m
Relative---
Send to
Opens the Maps app with a pin dropped at that coordinate. Saving it to your places is a tap in Maps — no web page can write to them. Leaving the HUD pauses GPS and the track, and Maps needs signal, so this is a dockside job. GPX suits chartplotters and marine apps; KML imports into Google My Maps.
Leg
WindNot set
Bow into the breeze, or hold the phone lined up with a vane, then tap Capture. Only works stopped — under way you would be reading apparent wind. Speed is optional; type it from a handheld meter.
Start line
Compass correctionlearning
Learned automatically by comparing GPS course with the compass while under way. Nothing to set.