weapon designs Flashcards
what are the different rifling methods
- Whitworth
- Oval bore
- Woolwhich rifling
- Frenchs rifling
- vavassuars driving band
- lead coated shell
what is the definition of ammunition.
All the material used in discharging all types of
firearms or any weapon that throws projectiles,
shot, shrapnel, bullets, cartridges and the
means of igniting and exploding them, as
primers and fuzes. Chemicals, bombs,
grenades, mines and pyrotechnics are also
ammunition.
what did the henry martini rifle suffer from.
suffered from extraction issue due to weak cartridges and excessive fouling due to the use of black powder
what are the types of barrel design and material used
iron, bronze, cast iron
What are the tasks for delivery systems
suppression, neutralization, destruction, harassment, illumination, interdiction, counter battery fire, coordination of fires.
what are the mortar design advantages
Large rate of fire in a small amount of time High level of mobility Lethality against unprotected troops Low velocity Simple and inexpensive Easy to operate Silent in flight Light weight Easy to dig in and conceal
what are the mortar disadvantages
No direct or low angle capability Easy to locate Limited range capability High angle fire results in long time in flight Requirement to bed in
what is the definition of a FFR
A tube open at one end in which fuel is burnt,
the gases form the burning fuel escape out of
the opened end The momentum of escaping gases causing an equal and opposite reaction on the closed
end.The projectile flight path cannot be changed
what is direct fire
firing at a target with line of site
what is in direct fire
Indirect fire - refers to firing a projectile on a
ballistic trajectory or delivering munitions by
guided or unguided missiles
what are artillery requirements
Ammunition Range Accuracy and Consistency Mobility Protection
what are the ammo natures artillery uses
HE, Illum, Smoke, guided and submunitions
artillery fussing options
air burst, ground burst, delay
what is used to increase artillery projectile range
ballistics, base bleed, rocket assist
why is fixed propellant bad at short ranges
may not be able to reach behind hills or valleys
what factors effect accuracy
Accuracy of target location
Inaccuracy inherent to the ammunition and instruments
Corrections applied for external conditions
what factors effect consistency
Muzzle velocity
Ballistic coefficient
Weather conditions
Laying, ramming and wear of the gun
what is the design of a HE projectile
Disperse high velocity fragments
Effect is accompanied by blast
what is the the smoke design for
- Blind the enemy observation and inhibit the
use of aimed direct fire and observed indirect
fire - Screen movements of troops from enemy
- Marking targets for engagements by other
weapon systems.
what is the illum design for artillery
carried alot less due too Image intensifiers Low light television Thermal imaging Infra- Red sights
what are the mortar designs conventional
smooth bore muzzle loaded no recoil mechanism restricted to firing above 45 degrees can not be fired in a direct role
what are the mortar designs unconventional
Rifle bore
Breech loaded
Low angle fire
what is a carriage and a mount
a carriage is ordnance that is carried on its wheels and is fired from its wheels
a mount does not fire with its wheels in contact with the ground
what is the components of the superstructure
Saddle (top carriage) Cradle Recoil system Balancing gear Elevating gear Traversing gear Sights
what are the functions of the mount
Provide mobility for transportation Support ordnance and give stability Give ordnance direction in elevation and traverse Provide accurate and quick laying to ordnance Absorb recoil energy and return gun to firing position
what are the functions of the cradle
- The function of the Trunnions are to absorb
some of the recoil shock and allow the barrel
to be raised and lowered for aiming
2 The cradle provides movement in the
vertical plane in relation to the saddle
3 The function is to support the ordnance
and recoil mechanism
4 The cradle is fitted with trunnions that
are housed in bearings on the saddle
and held down by cap squares
what is the function of the recuperater?
mechanism that returns the
recoiled parts to their original
position and holds them until the
next round is fired
what is the basic structure.
That part in contact with the ground and
transferring the firing stresses
what are the components of a mortar
barrel, bi pod, sight, base plate
what is the function of a mortar
short plunger in the base of the bomb impinges on
the firing pin and is forced forward to crush the cap, the flash tube is then ignited the flame is then passed through the spigot onto augmenting charges (if used) once ignited the gasses build up giving the mortar round ignition
what is the CWR of a mortar
greater then 20%
two ways to influence frag in a mortar
pre formed frag liner or internal scoring
and material from which they are made good for fragmentation
what is windage
gap between the outer
wall of the bomb and the inner wall of the tube.
What are the firing mechanisms
Electric
Percussion
Electric precussion
Set back forces are less then artilliary shells
.
Obfuscation defination
The effect created by rings or groves along the mortar
What is the purpose of rifling
Is to impart spin on the projectile as it travels along the bore
