Code Signal Flags

A Alpha – I have a diver down; keep clear and pass at low speed.
B Bravo – I am loading, unloading or carrying dangerous goods.
C Charlie – Yes (confirming a preceding signal).
D Delta – Keep clear, I am maneuvering with difficulty.
E Echo – I am altering course to starboard.
F Foxtrot – I am disabled, communicate with me.
G Golf – I require a pilot. On a fishing vessel: I am hauling in nets.
H Hotel – I have a pilot on board.
I India – I am altering course to port.
J Juliet – I am on fire and have dangerous cargo on board; keep clear.
K Kilo – I wish to communicate with you.
L Lima- You should stop your vessel immediately.
M Mike- My vessel is stopped and making no way through the water.
N November – No or negative (in response to a preceding signal).
O Oscar – Man overboard.
P Papa – I am about to put to sea.
Q Quebec – My vessel is healthy and I request clearance to come into port.
R Romeo – Single letter code R has no allocated meaning.
S Sierra – I am moving astern under power.
T Tango – Keep clear, I am engaged in trawling.
U Uniform – You are running into danger.
V Victor – I require assistance.
W Whisky – I require medical assistance.
X X-ray – Stop carrying out your intentions and watch for my signals.
Y Yankee – I am dragging my anchor.
Z Zulu – O require a tug. On a fishing vessel: I am laying nets.
AP/CF – Answering Pennant/Code Flag. Flown to the end or acknowledge a message and/or show that the international code flags are being used.
0 – Pennants indicating numerals.
1 – Pennants indicating numerals.
2 – Pennants indicating numerals.
3 – Pennants indicating numerals.
4 – Pennants indicating numerals.
5 – Pennants indicating numerals.
6 – Pennants indicating numerals.
7 – Pennants indicating numerals.
8 – Pennants indicating numerals.
9 – Pennants indicating numerals.
FS – First substitute (for the first flag in the hoist).
SS – Second substitute (for the second flag in the hoist).
TS – Third substitute (for the third flag in the hoist).