Carts Flashcards
4 types of bagged charges?
Equal
Unequal
Stem and ring
Stem and segment
3 Breech loading components?
Tubes or primers
Bagged charges
Projectile
3 Quick fire components?
Cart case with primer
Propelling charge
Projectile
Requirements of cart case? 4
Protection of contents
Provide efficient obturation
Easy loading
Able to house a primer
5 types of corrosion?
Rust Aluminium oxidation Cupric azide contamination Zinc exudation Mazak contamination
3 types of quick fire?
QF separate
QF semi fixed
QF fixed
4 HE filling techniques?
Casting
Pressing
Extruding
Pre forming
2 types of RCL ammo?
Soils cart case with blow out rear disc
Perforated cart case system
Explain RCL solid case with blow out rear disc?
Pressure builds, disc ruptures, projectile propelled forward
Propellant gases escape through breech hole and out Venturi
Explain perforated cart case system?
Prop gases escape through holes in cart case, into annular space, out through Venturi
3 Tracer classifications?
Tracer projectile
Tracer and igniter projectile
Integral tracer
5 what is copper used for?
Driving bands Detonators Shape charge liner Cart cases SAA jackets
3 methods to attach projectiles to cart cases?
Coning
Canneluring
Coning and canneluring
3 methods of HE shell manufacture?
Cast
Forged
Extruded
3 classifications of projectiles?
Operational projectiles
Weapon functioning/inspection
Training projectiles
2 types of plastics?
Thermoplastic
Thermosetting plastic
Advantages of combustible cart cases?
Everything loaded into the chamber plays some part in ballistics
Reduces barrel wear
Reduced cook off with low charges
Less produce
3 why use brass in cart cases?
Performs well in most equipment
Metallurgy and techniques are well known
Does not corrode to hard abrasive particles
3 methods of tracer sealing?
Brass or celluloid discs or cups
NG and carbamite
Bakelite discs
3 functions of driving bands?
To centre projectile in bore and impart spin
To prevent the forward escape of propellant gases
To assist in prevention of slipback of the projectile when loaded at high elevations
2 types of primers?
Percussion
Electric