Eglonian Code Signalling for Army using Steam

Eglonian Code Signalling for Army, using Steam Whistles and Horns. Previously the Royal Army of Eglen used a variety of signals, using flags and musical instruments, hand signals, shouts, and other means. When the army transferred to be more and more steam powered, the Five Marshals decided it was time to rework the whole signalling code book. They trough out all the old codes, which were based on centuries old practice and battlefield use and came up with a system that used steam whistles (and/or horns). Drastically shortening the list of possible signals. While also setting new signal for every single letter and number, so that if necessary a whole message could be spelled out.

Basics

The whole code is a combination of four different signals, a high and a low tone, short or long.
In this guide a short tone is written as high or as low, a long tone is written as high-long or as low-long.

Action signals

All signals that signal an action start with a double short high tone blast.
high, high

Attention = high, high, high-long

Advance = high, high, low, high

Charge = high, high, low-long

Alarm = high, high, high, high

Fire alarm = high, high, high, low, (repeated trice)

Air alarm = high, high, high, low, high, low-long

Fall back = high, high, low, low-long

Make ready = high, high, low-long, low-long, high

Retreat = high, high, low, low, low

Disregard last signal = high, low, high, low, (repeated twice)

Salute

Royal salute = High, high-long, high, low, high, low-long, high, high

Normal salute = high-long, high, low-long, high

Previously there where different salutes and calls for almost all military and nobility ranks, they've all been thrown out, in favour of the two above.

Identifying signals

Identifying signals call out specific regiments or other special parts.
Identifying signals always start with two low signals.
low low

13^th Baron Waketopper's Regiment of Shock troopers = low, low high-long, high

44^th Infantry Regiment Formica Rufa = low, low, low-long, low-long

<to be expanded>

Alphabet, single letter signals

A = high, low

B = low, high-long, high

C = low, high, low, high

D = low, high-long

E = high

F = high-long, low high

G = low-long, high

H = high-long, high-long

I = high-long

J = high, low-long, low

K = low, high, low

L = high, low, high-long

M = low-long

N = low, high

O = low-long, low

P = high, low-long, high

Q = low-long, high, low

R = high, low, high

S = high-long, high

T = low

U = high-long, low

V = high-long, high, low

W = high, low-long

X = low, high-long, low

Y = low, high, low-long

Z = low-long, high-long

Number, single digit signals

1 = high, low-long, low-long

2 = high-long, low-long, low

3 = high-long, high, low-long

4 = high-long, high-long, low

5 = high-long, high-long ,high

6 = low, high-long, high-long

7 = low-long, high-long, high

8 = low-long ,low, high-long

9 = low-long ,low-long, high

0 = low-long ,low-long, low

Automated signalling steam whistles

All units in the Eglonian Army have a double steam whistle on their steam plant, which has to be manually operated to make all the signals.

Bigger steam plants have an automated signal machine. It functions with a revolving drum that triggers the valves to the related whistles for the appropriate amount of time. Selecting the correct channel on the drum can make the whistle blow the exact signal required.

The biggest automatic signalling machines have a drum for the identifying signals and even for the individual letters and numbers as well. Or the machine can be made to repeat signals a certain amount of times.

Note

Even though the Air Corps is part of the Royal Army of Eglen. It doesn't use the complete army's signalling code, for use on the Air Corps bases they use the signals as listed above, but for air operations they have their own system.

The Imperial Eglonian Navy has their own code as well. Which is completely different.