NavitimeNavitime
All topics

Flags & Signals

All 26 flags of the International Code of Signals, with phonetic names, colours and meanings.

Alpha flag

A — Alpha

AL-FAH

White & Blue (diagonal)

I have a diver down; keep well clear at slow speed

Bravo flag

B — Bravo

BRAH-VOH

Red (solid)

I am taking in, discharging, or carrying dangerous goods

Charlie flag

C — Charlie

CHAR-LEE

Blue/White/Red horizontal stripes

Yes (affirmative)

Delta flag

D — Delta

DELL-TAH

Yellow/Blue/Yellow vertical

Keep clear of me; I am manoeuvring with difficulty

Echo flag

E — Echo

ECK-OH

Blue & Red vertical halves

I am altering my course to starboard

Foxtrot flag

F — Foxtrot

FOKS-TROT

White with red diamond

I am disabled; communicate with me

Golf flag

G — Golf

GOLF

Yellow & Blue vertical stripes

I require a pilot

Hotel flag

H — Hotel

HOH-TEL

White & Red vertical halves

I have a pilot on board

India flag

I — India

IN-DEE-AH

Yellow with black circle

I am altering my course to port

Juliet flag

J — Juliet

JEW-LEE-ETT

Blue/White/Blue horizontal

I am on fire and have dangerous cargo; keep clear

Kilo flag

K — Kilo

KEY-LOH

Yellow & Blue vertical

I wish to communicate with you

Lima flag

L — Lima

LEE-MAH

Black & Yellow chequered

You should stop your vessel instantly

Mike flag

M — Mike

MIKE

White with blue X

My vessel is stopped and making no way through the water

November flag

N — November

NO-VEM-BER

Blue & White chequered

No (negative)

Oscar flag

O — Oscar

OSS-CAH

Red & Yellow diagonal

Man overboard

Papa flag

P — Papa

PAH-PAH

Blue with white rectangle

In harbour: all persons report on board. At sea: nets caught on obstruction

Quebec flag

Q — Quebec

KEH-BECK

Yellow (solid)

My vessel is healthy; I request free pratique (quarantine flag)

Romeo flag

R — Romeo

ROW-ME-OH

Red/White/Red vertical

(No ICS single-letter meaning; used in Morse)

Sierra flag

S — Sierra

SEE-AIR-RAH

White with blue rectangle

My engines are going astern

Tango flag

T — Tango

TANG-GO

Red/White/Blue vertical

Keep clear of me; I am engaged in pair trawling

Uniform flag

U — Uniform

YOU-NEE-FORM

Red & White chequered

You are running into danger

Victor flag

V — Victor

VIK-TAH

White with red X

I require assistance

Whiskey flag

W — Whiskey

WISS-KEY

Red/White/Red horizontal

I require medical assistance

X-ray flag

X — X-ray

ECKS-RAY

White with blue cross

Stop carrying out your intentions and watch for my signals

Yankee flag

Y — Yankee

YANG-KEY

Yellow & Red diagonal

I am dragging my anchor

Zulu flag

Z — Zulu

ZOO-LOO

Black/Yellow/Red/Blue quadrants

I require a tug

In the Navitime app

This is just a fraction of what the app offers

Download Navitime free on iOS and Android for the full Advanced Navigation book collection, adaptive quizzes, flashcards, and mock exams — all fully offline.