2. Illuminating - Signal & Tracer Compositions

Question 1

What is the role of Illuminating Compositions

Answer 1

a. To provide a steady source of light to to illuminate targets for visual or photographic reconnaissance purposes.
b. Provide coloured signals which are identifiable against difficult backgrounds at considerable distances.
c. Provide fillings suitable for use as tracers in SAA and other direct fire ammunition.

Question 2

What are the 2 purposes of dark ignition?

Answer 2

• To avoid observation by the enemy (of the exact location of the weapon)
• To avoid dazzling the firers at night

Question 3

What is the role of Signal Composition?

Answer 3

To transmit concise messages through the atmosphere over considerable distances

Question 4

What are the 2 types of signal composition?

Answer 4

Produce a light of distinctive colour

Produce coloured smoke

Question 5

What are the 4 design requirements for the Tracer Composition?

Answer 5

Luminosity
Strength
Consistency of performance
Ease of ignition

Question 6

Most common colour producers

Answer 6

Red - Strontium Nitrate
Yellow - Sodium Nitrate
Green - Barium Nitrate
Blue - Copper Carbonate
White - Barium nitrate/potassium nitrate mixture
Orange - Calcium Nitrate

Question 7

What are the design requirements for illuminating compositions?

Answer 7

Burn for the required time
Have the appropriate luminosity
With firing forces ie tracer