Tap start on the class flag. If you miss it, sync at the prep signal or the one-minute.
Presented bySailboat Instructor
How it works
Running a start
Tap Start sequence when the race committee makes the warning signal. Every call comes through your earbuds — you never have to look down.
Calls at 4:00, 3:00, 2:00, 1:30, 1:00, 0:45, 0:30, 0:20, 0:10, then every second from five to the gun.
A horn sounds at the prep signal, the one minute, and the start.
After the gun the clock keeps running up, so you know your time since the line.
If you're out of sync
Off by a few seconds, or you started the app late? Hit a sync button on the committee's horn and the clock snaps to that mark and keeps going.
4:00 — the preparatory signal, P flag up.
1:00 — the one minute, P flag down.
Both sync buttons also work from a standing stop, so you can join a sequence already under way. They are hidden in PRO mode — on the committee boat you set the time, so there is nothing to sync to.
3:00 VHF — starting over the radio
For running a start by radio instead of flags. Hold the phone speaker up to the mic, key the radio, then tap start. The clock runs 3:30: the first thirty seconds are a heads up so the fleet knows a countdown is coming, then the three minute countdown proper begins.
Opens with "the three minute countdown will start in thirty seconds," then counts in from five.
From three minutes it matches the racing sequence: 3:00, 2:00, 1:30, 1:00, 0:45, 0:30, 0:20, 0:10, then five to the gun.
Voice only, no horns or beeps — a tone over the air could be mistaken for a real horn. Keep the mic keyed the whole way.
PRO mode — running the start
Pick PRO 5:00 and the app talks the committee boat through it. It opens a minute before the warning signal so you have time to get the flag and the horn in hand. Every flag movement gets the same three calls: a twenty second stand by, then the flag and horn named on the count, then five to one, then the call itself.
5:00 — class flag up, one horn.
4:00 — preparatory flag up, one horn. The fleet is racing from here.
1:00 — preparatory flag down, one long horn.
0:00 — class flag down, one horn.
At 0:45 it tells you to get the X-ray flag in hand, and after the gun it prompts you on recalls: X-ray and one horn for an individual, First Substitute and two horns for a general.
The app's own tone matches the length of the sound you owe — short for the signals, long for the one minute. It calls the preparatory flag as papa; substitute I, Z, U or black if your sailing instructions say so, and check the instructions for any change to the five-minute interval.
Before you leave the dock
iPhone: turn off the silent switch, or the browser can't make a sound.
Turn the volume up and test it with Test sound.
Tap Change voice to pick a voice and speed. Choose one marked "on device" — the others need a data signal and will go quiet offshore.
Keep the screen on and the app in front. Phone browsers pause timers when you switch apps or lock the screen — leave it open in a pocket with the screen awake.
Add it to your home screen for a full-screen, offline copy.
General recall
Press and hold Reset for a moment to clear the clock. The hold is deliberate — it stops you killing a live sequence with a wet thumb.
Voice
These come from your phone, so the list changes device to device. Tap one to hear it.