Service Ammunition Flashcards
Name 3 types of ammunition
- HE
- WP
- Illum (White/IR)
What is the lethal radius of a HE round?
40m
What is the casualty radius of a HE round?
190m
What ground conditions can effect a HE round when it explodes?
Wet or Dry
What fuse is a HE round fitted with?
L127A3/4
Where is the fuse on a mortar round?
Silver bit at the top
Colour of a HE round and stencil writing?
Deep Broze Green and Yellow Stencil Writing
How heavy is a HE round?
4.5 kg
Does the HE round have a discarded Obturating Ring?
Yes
How much RDX TNT mix does a HE round have in it?
0.733kg
Name 3 characteristics of the tail fin
- Centre tube
- Primary cartridge
- Flash Holes
Two types of impact of the L127A3/A4 fuse
Super Quick (SQ) or Slight Delay (0.05) Sec
What distance does the L127 A3/4 round arm its self?
73-292m
How far does the armoured striker pertrude?
4mm
How much does a Brown Ammo Box of HE weigh?
32.8kg
How much does a greeny of HE weigh?
11.8kg
What fuse is a WP round fitted with?
L127A3/A4
Name the identifying features of a WP round
Has a small step to identify at night, light green in colour, red hazard band and yellow stencil and discarded Obturating ring
How much does a WP round weigh?
4.5kg
How much does a brown ammo box of WP weigh?
33.2kg
What is the weight of a WP greeny
11.8kg
There are 5 WP saftey rules. Name some
- WP must be checked regularly for leaks
- Done leave in direct sunlight, provide shade
- WP Must be stacked seperate
- Provide shelter sheet, must be raised for ventilation
- Any unpacked rounds that are dripped, must be put to one side and destroyed
What is the range of the Illum L54A1 round?
400-4800m
What candle power is the Illum round equivalent to?
1,000,000
Burn time of Illum?
33 seconds
What the the burst height of Illum?
500m
How far does the Illum round light up?
400m
What is the rate of decent for Illum?
3.7mps
What fuse does Illum use?
DM93 Fuse
How heavy is an Illum round?
4.6kg
What is the colour, and writing of the Illum round.
White and Black Stencil
What are the two main difference between a L54A1 Illum round vs a L58A1 IR Illum?
2 minute burn time and black band around the round
What rounds use the DM 93(M) fuse?
Illum and WP
How heavy is the brown ammo box of Illum?
35kg
How heavy is an Illum greeny?
12.3kg
What type of fuse does the M73A1 have?
Electrical and Mechanical Proximity Fuse
What is the burst height of the M73A1 fuse?
4.2m
How do you set the M73A1 Fuse?
By hand
What is the M73A1 Proxy Burst Height?
6081mm
Is there a saftey on the M73A1 Fuse?
No safety fitted
What shouldn’t you do to the M73A1 round?
Remove the rubber cap
Name 4 characteristics of the primary charge?
- Aluminium tube
- Waterproof
- Firing Cap at the bottom (is fully enclosed)
- Tail Fins
3 things you look for with charge selection
- It’s a MK4 Charge System (UK)
- Has 6 Augmenting Cartridges
- Is serial numbered to the ammunition nature
Explain the action on firing
- The round slides down the tube under its own weight
- The primary charge hits the firing pin
- The flash passes through the flash holes and ignites the augmenting cartridges
- These burn rapidly and causes gasses that push the round out of the barrel
Name the characteristics of a L37/L38 drill round
Dark Blue in colour, White stencil and says Inert primary Cartridge
HOW DO YOU RECONDITION A ROUND AT THE END OF FIRING?
- Check saftey pin is in position
- If it has been removed, place for destruction
- Don’t re-pin
How do you recondition a fuse
- Must be set to SQ or S
- On a M734A1 round it must be set to 6081 prox
What is the magnification of a C2 sight?
1.7x magnification
What is the field of view for a C2 sight
180mils
