TOD Flashcards
What is the definition of Small arms?
Ammunition for weapons such as pistols, rifles and machine guns below 20 mm in calibre.
Soft mouth of cart cases are necessary for what reasons?
Expand as soon as pressure rises in chamber
Establishes an early seal
Prevents gas leakage
The hard base in cart cases necessary for what reasons?
To withstand internal pressure and rearward thrust from propellant gases
Withstand stresses applied by extractors (Chambering/extracting cases)
In relation to small arms projectile design is governed by what?
Ballistics
Target characteristics
Effect required on the target
Maximum effective range
Type of weapon
What is set up?
Forward obturation by the base expansion of the projectile by propellent gases.
- efficient if the projectile has no boat tail
What is a Defensive Grenade?
Grenades designed for use when thrower is protected, the lethal area is achieved using fragments projected at high velocity.
What is an Offensive Grenade?
Offensive grenades rely solely on the effect of blast for their anti-personnel effect. Their effect is to stun or disorientate.
What are the typical components of a hand grenade?
- Body
- Filling
- Fragmentation
- Fuze Cavity
- Fuze
What are the grenade design categories ?
Hand Thrown
Projected -(Rifle launched/gun fired)
Discharger (Weapon/vehicle launched)
What are the components of a Rocket Motor ?
Casing
Combustion Chamber
Propellant
Igniter
Venturi
Fins
What sections make up a Free Flight Rocket?
Motor, Warhead, Launcher
What types of warheads can be fitted to Free Flight Rockets?
- Nuclear
- HE
- Chemical
- Preformed Frag
- Sub Munitions
- Terminally Guided Munitions (TGM)
- Prac
What are the components of a mine?
Warhead
Sensor and Fuze
Safety and Arming Unit
Power Source
Case
How does explosive breaching effect the minefield?
- Destroys mines
- Throw surface mines to the side
- Disrupt fuzes via overpressure
- Activate simple pressure mines
- Sympathetic detonation
What are the 3 mine breaching methods?
- Hand
- Mechanical
- Explosive
Advantages of Recoilless Rifles
- No Recoil
- Low Weight
- Man Portable
Disadvantages of Recoilless Rifles
- Low Velocity
- Flash/Dust Signature (BBDA)
- Large Propelling Charge
Types of Recoilless Ammo
- HEAT
- HE
- HEDP
- ASM
- ILLUM
- PRAC (TPT, TPT)
- SUB CAL (6.5mm, 7.62mm, 20mm)
- DRILL
What are the types of cart bases IRT SAA?
What is the construction of a Combustible Cart Case?
Painted and sealed nitrocellulose mixed with wood pulp
(NC, Kraft Paper, Resins)
What are the characteristics of a mortar ?
Smooth bore
No recoil system
Restricted elevation above 800mils
Muzzle loaded
What are the components of a mortar ?
Base plate
Bipod
Barrel
Sight
What are the 4 types of 81mm mortar ammunition in service ?
HE
RP and WP Smoke
Illumination
Training / Prac
What are the 7 types of mortar fire ?
Preparation fire;
Covering fire;
Defensive fire;
Counter Battery fire;
Harassing fire;
Smoke (screening and blinding);
Illuminating;
Common components of a tank round?
- CCC
- Case Base and Seal Assembly (CBSA)
- Electric primer
- Main Propellant Charge
What rounds do the M777’s fire?
HE
SMART round
HE Excalibur
Illum
WP
What types of propellant does the M777 use?
M232A1 MACS & M231 MACS
M3A1 Green
M4A2 White
reducer flash M2
fired by primer percussion M82
Types of Tank rounds
APFSDS-T
HEAT MP -T
Canister
TPCSDS-T
TP-T
TPMP-T
SLAP-T (.50 Cal)
What tank round is fused and what kind of fuse is used?
HEAT-MP-T
- Multi Function Fuze (PD and Prox)
(Prox used to defeat helicopters)
What is the current artillery system for Aus?
The Howitzer, Towed, 155 mm M777A2:
extended-range, lightweight and split-trail
both optical fire control system (OFCS) and digital fire control system (DFCS)
uses the in-service US M107 family of ammunition
What is the rate of fire of the M777
maximum: 4 rpm for 2 minutes;
sustained: 2 rpm;
after 30 minutes the rate of fire is dropped to 1 rpm (the electronic thermal warning device
How many WP wedges are in the 155mm WP M825A1?
116
What are the three types of mechanical breaching for mines?
Flails
Rollers
Ploughs
What are the factors that affect rocket accuracy?
Surface Cross Winds
Propellant Burning Rate
Launcher Induced Errors
What is the NATO definition of a mine?
An explosive or other material, normally encased, designed to destroy or damage vehicles, boats or aircraft, or designed to wound, kill or otherwise incapacitate personnel. It may be detonated by the action of its victim, by the passage of time, or by controlled means.
What are the type of obstacles presented to the enemy by mine warfare?
Disrupt, Turn, Fix and Block
What are the typical actuation weights for anti-pers and anti-tank mines?
anti-pers - 8-50 kg
anti-tank - 200-250 kg
