tack.coachCoach · live · position: phone GPS ~3 m live → LitPOS-corrected after solve (dm PPK needs raw GNSS)sign in
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On water
0 kn
Fleet avg
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Session
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Fleet0

← Fleet ▾ ‹ › ×
Wind & trim at boatwind · heel · turn
Speed
Data table▸ show
Onboard camera⦿ simulated
AI points of interest⦿ simulated
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GPS track:
Start in
—:—
N
SW 225° wind
~5 m/s · set
Window →
Coach settings ×
Finish-line detection races · start/finish line
Start / finish line click pin + committee on the map
Course route marks the fleet must round — shared live
Auto declutter bunched boats shrink (true positions kept) · thin overlapping tacks
Auto-focus fleet keep the fleet framed; zoom in when bunched
Highlight leaders badge top 3 to the windward mark; dim the pack
Hide dead boats fade, then remove a boat 10 min after its phone goes quiet
Dim low-accuracy fade boats whose GPS is worse than ±15 m · slide to Off to disable
GPS track layers · turn on both to compare
Raw GPS phone ~3 m · off = shown only where no corrected line exists
Corrected server LitPOS layer
Only real differential hide boats whose "corrected" line is smoothing-only
checking…
Tails
Colour by
“Boat” keeps each boat’s colour (set it on the boat card); speed still shows as brightness.
Length
Tacks on map chevrons at each maneuver · works in replay too
Current calibration

✎ Course route

Laps 1 of the mark loop
Tap the MAP to drop a mark · tap a 🛟 buoy boat to bind a drifting mark · P/S = leave the mark to port / starboard. Start & finish use the start line. Save as setup to reuse this route + line next time and compare results across sessions.