A - Alpha
diver down; keep clear.
B - Bravo
carrying dangerous cargo.
C - Charlie
Yes (Affirmative)
D - Delta
Keep clear off me, I am maneuvering with difficulty
E - Echo
Altering course to starboard
F - Foxtrot
I am disabled, communicate with me
G - Golf
I want a pilot
H - Hotel
I have a pilot onboard
I - India
I am altering my course to port
J - Juliet
Vessel on fire, keep clear
K - Kilo
I want to communicate with you
L - Lima
Stop your vessel instantly, I have something important to communicate
M - Mike
My vessel is stopped and making no way through the water
N - November
No (Negative)
O - Oscar
Man overboard
P - Papa
(In port) All personnel return to ship; vessel is about to sail
Q - Quebec
My vessel is healthy, I request free pratique
R - Romeo
The way is off my ship, you may feel your way past me
S - Sierra
I am operating astern propulsion
T - Tango
Keep clear of me; I am engaged in pair trawling
U - Uniform
You are running into danger
V - Victor
I require assistance
W - Whiskey
I require medical assistance
X - X-ray
Stop your intentions and watch for my signals
Y - Yankee
I am dragging my anchor
Z - Zulu
I require a tug