Type a message, press SEND, and the duty signaller will spell it across the water, one crisp position at a time. Then swap places and read the signal yourself.
Shown as seen by the observer — the signaller's right hand is on your leftSTANDING BY
NAVAL MESSAGE
Form S.1320 (Flags) Pad of 100 · write in block capitals
AS SIGNALLED5 SIGNS
About 13 words a minute
OR HOIST A READY-MADE SIGNAL
SIGNAL EXERCISE
Form S.1321 (Reading) Watch the deck · write what you see
The signaller sends; you read. Type the letter you see and it is checked at once. Stuck? Ask for a repeat, or cheat honestly with the chart below.
STREAK0BEST 0
READY ON DECKPress NEXT SIGNAL and keep your eyes on the flags.
THE WHOLE ALPHABET
As seen by the observer Hover, tap or press a key
Each flag points to one of eight places, like the hours on a small clock: down, low, out, high, up, and round the other side. Two flags make twenty-eight pairs, and the alphabet simply walks round that clock in seven shrinking circles.
1A TO GOne flag stays down. The other steps round the clock, low on the signaller's right to low on the left.
2H TO N, LESS JOne flag parks at low; the other steps on from out, all the way round.
3O TO SOne flag parks straight out; the other climbs from high and over.
4T, U, Y & CANCELOne flag parks at high. Y sits out of order; learn it as an exception.
5NUMERALS, J, VOne flag straight up. J doubles as “letters follow”.
6W, X & THEN ZWhatever pairs are left: two in the sixth circle, one lonely Z in the seventh.
#FIGURESAfter the numerals sign, A to I read as 1 to 9 and K as 0, until J returns you to letters.
–REST & ATTENTIONBoth flags down in front is the space between words. Both flags waved overhead calls for attention.
Play the signaller like an instrument. Click away from the message box and press any letter key: A–Z snaps to that letter, Space drops to rest, Esc stands down.