Commercial Signal Code Sets contain 40 pieces including 26 alphabet code flags, 11 numeral and answering pennants and 3 substitute pennants. Signal code flags are available in three mounting styles: ash toggle with distance lines, brass grommets, or brass snaps & rings. All sets include a nylon storage carrying bag.

Signal Code Sizes
Size 0 = Flags, 1' x 1-1/4', Pennants, 2/3' x 2', Substitutes, 2/3' x 1-1/3'
Size 2 = Flags, 1-1/2' x 2', Pennants, 1-1/3' x 3', Substitutes, 1' x 2'
Size 3 = Flags, 2' x 2', Pennants, 1-1/3' x 3', Substitutes, 1-1/3' x 2-2/3'
Size 7 = Flags, 3' x 3', Pennants, 2' x 4-1/2', Substitutes, 2' x 4'
Size 10 = Flags, 4' x 4', Pennants, 2-2/3' x 6', Substitutes, 2-2/3' x 4'
Size 14 = Flags, 4' x 6', Pennants, 2-2/3' x 9', Substitutes, 2-2/3' x 5-1/4. (Snap and ring only).

Mil-Spec Signal Code Sets contain 65 pieces, acrylic coated nylon flags and pennants with distance lines, brass snap and ring.

Size 3 = Flags 5'9" x 5'9", Pennants 4'7" x 9'4". Size 4 = Flags 4'4"x 4'4", Pennants 3'5" x 6'11", Size 6 = Flags 2'11" x 2'11", Pennants 2'0" x 4'3", Size 8 = Flags 1'9" x 1'9", Pennants 1'2" x 2'5"

Signal code meanings and descriptions

A - Alpha Diver below, keep clear
B - Bravo Taking on, discharging, or carrying dangerous cargo
C - Charlie "Yes" or "affirmative"
D - Delta Maneuvering with difficulty, keep clear
E - Echo Altering course to starboard
F - Foxtrot Disabled, communicate with me
G - Golf Requiring a pilot
H - Hotel Pilot on board
I - India Altering course to port, Coming alongside (US Navy)
J - Juliet On fire and dangerous cargo, keep clear
K - Kilo Wish to communicate with you
L - Lima Stop your vessel immediately
M - Mike This vessel is stopped (or, doctor on board)
N - November "No" or "negative"
O - Oscar Man overboard
P - Papa All personnel return to ship; about to sail
Q - Quebec Request clearance into port
R - Romeo (no current meaning)
S - Sierra Moving astern
T - Tango Keep clear, engaged in trawling
U - Uniform You are standing into danger
V - Victor Require assistance
W - Whiskey Require medical assistance
X - X-ray Stop and watch for my signals
Y - Yankee Dragging anchor
Z - Zulu Require a tug
0 - numeral zero, three vertical stripes: yellow, red, yellow
1 - numeral one, red circle to the hoist on a white pennant
2 - numeral two, white circle to the hoist on a blue pennant
3 - numeral three, three vertical stripes: red, white, blue
4 - numeral four, white cross on a red field
5 - numeral five, split vertical fields: yellow on the hoist, blue on the fly
6 - numeral six, split horizontal fields black above, white below
7 - numeral seven, split horizontal fields, yellow above, red below
8 - numeral eight, red cross on a white field
9 - numeral nine, 4 fields, white over red hoist side, black over yellow on the fly
Answering Pennant - alternating 3 red, 2 white stripes, Message is understood. Or, numeric decimal point
1^st Substitute Repeater Pennant, Substitute for the first flag in this hoist
2^nd Substitute Repeater Pennant, Substitute for the second flag in this hoist
3^rd Substitute Repeater Pennant, Substitute for the third flag in this hoist