Fleet Regatta Tracker

Data

Use default vars during pre-start (BSP / TTK / SR)

Boats

Gas MHU

Gas BOW

Neutral Color

Render Style

Particles

Cloud Trail

Live time window

Min BSP (km/h) Red↔Green midpoint ()

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Source

Boats

Marks

UW TWA: —° DW TWA: —°

Boat sensor

Polar-derived laylines

Smoothing

TWD avg: s ⓘ

TWS avg: s ⓘ

Layline adjust

UW: °

DW: °

Curved laylines (wind field)

TWS-adaptive angle (polar)

Bends with the wind across the course. Sources: the wind overlay's when active — otherwise the Laylines' wind-source pool (no overlay shown).

Polar

No polars found — laylines use fixed angles, optimal start unavailable.

Polar multiplier — Uw/Dw beats

Optimal Start

Requires a polar.

Best point

Trajectory to M1

All sample trajectories

Equal-time curve

Start bias (SL1/SL2 → M1)

M1 trajectory · TTB

Marks source

XML target marks (faded)

No course XML found for this race.

Alarm boat config

Start roses (pre-start)

Requires a polar.

Per-boat reach-by-the-gun fans + line congestion. Shows only while the countdown runs.

Mini line strip (top-right panel)

Display

Fans

Spokes

Time rings

Line density

Boat labels

Model

Accel τ (s)

Turn rate (°/s)

Tack penalty (s)

Window (s)

Sweep step (°)

Spoke step (°)

Min BSP (km/h)

τ = 0 uses the static polar (no acceleration).

Boats

All boats

Loading current…

Show current overlay

Trajectory

Requires a polar.

Click the map to place points (X → T1 → box → line).

Start from BRA (live)

Race clock

Calculate TTK (from TTS)

TTK (s) output — TTS − route time

Speed model

Gas pre-T2

Gas post-T2

Start polar ratio BSP scale

H1 TWS after T2

Accel phase

Accel phase (τ)

Accel τ (s) shared with Start Roses

Start BSP (km/h) 0 = standing start using BRA's live speed

Free Trajectory

Requires a polar.

Click the map to add points · right-click a point to delete.

Start from BRA (live)

Free trajectory polar ratio (BSP scale)

Crossing lines

The ladder rung we land on after a tack/gybe, from the measured maneuver-loss table. Boats ahead of it we don't cross.

Maneuver-loss table unavailable — check targets/maneuver_loss.csv, or restart the backend if it was added while the server was running.

Reference boat

Show current ladder

Who counts

Reach across course (m) sideways only + max line length

Min BSP (km/h) skip stopped boats; 0 = off

Line

Fit to fleet

Half-length (m) auto — fitted, capped by range

Call

Too-close band (m) ±, reads amber

Crossing alert

Meets within (s) opposite tack + closing

Passing within (m) closest approach; 0 = alerts off

Call

Decision window (m) beyond this, greyed as settled

Loss scale x the table, for venue tuning

Now: m at km/h

Below foil-up TWS — the table's lowest rows are flat.

Show wind field

TWS Sources

Boats

Marks

Rendering

Render Colour Vectors

Line colour

Cover whole boundary

Clip to course polygon

Confidence floor Smoothing reach Detail passes

View presets

One-click views of what's shown on the map (the slim bar top-centre; the "Modes" chip shows/hides it). A preset only changes what it pins — hover it for the exact list. Toggling things afterwards never edits the preset: the pill just un-lights (custom view). Use to save the current view into a preset.

Auto switching

Switch with the race clock: Pre-start inside the last 5 min before the gun, Racing after it. Manual changes hold until the next phase.

Pre-start preset Racing preset

Share settings

All toggles and these presets save automatically in this browser and survive race switches and reloads. Export a JSON file to share your setup, or apply the published team defaults; Reset also lands on the team defaults when there are any.

Welcome

Select Event Day

Tooltips

Boat Gas Display

Tracks

Tracked Boats

Wind Source

Polar & Optimal Start

Start Roses

Tide

4-Point Trajectory

Free Trajectory

Crossing

Wind Field

Presets & Settings