Artillery Flashcards
Saddle
Saddle
- Central Pivot
- Trunnion Bearings
- Some guns have no saddle
Cradle
Cradle
- provides vertical mobility
- fitted with trunnions to support recoil.
3 types:
Trough type, ring type, skeleton type.
Recoil System
Usually sits under barrel.
Comprised of two parts: The buffer (controls rearward recoil), the recuperator (returns to original position)
Balancing Gear
For tension and compression to shift CofG.
Equilibrators
Assists in elevation and depression of barrel.
Can be remote or hand wheel.
Traversing Gear
Used to move superstructure horizontally.
Basic Structure
Lower half up until the saddle.
Carriage vs Mounting
Mounting implies wheels dont touch the ground when firing
Rifling
Consists of:
Lands and Grooves which are contant or progressive.
Calibre
Diameter of the bore.
Barrel Stiffness
Stresses on Barrels
Girder stress
Radial Stress
Circumferential
Longitudinal
Torsional
Barrel Wear
Erosive wear
Abrasive Wear
Shot Start
Point at which pressure builds up sufficiently to begin the shot through the barrel.
Seperate vs Fixed Ammunition
Seperate: projectile, propellant and initiating card are individually loaded into breech.
Fixed ammo: projectile and propellant are fixed into cart case.
