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Atmc > weapon designs > Flashcards

weapon designs Flashcards

1
Q

what are the different rifling methods

A
  1. Whitworth
  2. Oval bore
  3. Woolwhich rifling
  4. Frenchs rifling
  5. vavassuars driving band
  6. lead coated shell
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2
Q

what is the definition of ammunition.

A

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.

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3
Q

what did the henry martini rifle suffer from.

A

suffered from extraction issue due to weak cartridges and excessive fouling due to the use of black powder

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4
Q

what are the types of barrel design and material used

A

iron, bronze, cast iron

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5
Q

What are the tasks for delivery systems

A

suppression, neutralization, destruction, harassment, illumination, interdiction, counter battery fire, coordination of fires.

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6
Q

what are the mortar design advantages

A 
 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
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7
Q

what are the mortar disadvantages

A 
 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
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8
Q

what is the definition of a FFR

A

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

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9
Q

what is direct fire

A

firing at a target with line of site

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10
Q

what is in direct fire

A

Indirect fire - refers to firing a projectile on a
ballistic trajectory or delivering munitions by
guided or unguided missiles

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11
Q

what are artillery requirements

A 
 Ammunition
 Range
 Accuracy and Consistency
 Mobility
 Protection
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12
Q

what are the ammo natures artillery uses

A

HE, Illum, Smoke, guided and submunitions

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13
Q

artillery fussing options

A

air burst, ground burst, delay

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14
Q

what is used to increase artillery projectile range

A

ballistics, base bleed, rocket assist

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15
Q

why is fixed propellant bad at short ranges

A

may not be able to reach behind hills or valleys

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16
Q

what factors effect accuracy

A

Accuracy of target location
Inaccuracy inherent to the ammunition and instruments
Corrections applied for external conditions

17
Q

what factors effect consistency

A

 Muzzle velocity
 Ballistic coefficient
 Weather conditions
 Laying, ramming and wear of the gun

18
Q

what is the design of a HE projectile

A

 Disperse high velocity fragments

 Effect is accompanied by blast

19
Q

what is the the smoke design for

A
  1. Blind the enemy observation and inhibit the
    use of aimed direct fire and observed indirect
    fire
  2. Screen movements of troops from enemy
  3. Marking targets for engagements by other
    weapon systems.
20
Q

what is the illum design for artillery

A 
carried alot less due too 
Image intensifiers
Low light television
Thermal imaging
Infra- Red sights
21
Q

what are the mortar designs conventional

A 
smooth bore
muzzle loaded
no recoil mechanism
restricted to firing above 45 degrees
can not be fired in a direct role
22
Q

what are the mortar designs unconventional

A

 Rifle bore
 Breech loaded
 Low angle fire

23
Q

what is a carriage and a mount

A

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

24
Q

what is the components of the superstructure

A 
 Saddle (top carriage)
 Cradle
 Recoil system
 Balancing gear
 Elevating gear
 Traversing gear
 Sights
25
Q

what are the functions of the mount

A 
 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
26
Q

what are the functions of the cradle

A
  1. 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
27
Q

what is the function of the recuperater?

A

mechanism that returns the
recoiled parts to their original
position and holds them until the
next round is fired

28
Q

what is the basic structure.

A

That part in contact with the ground and

transferring the firing stresses

29
Q

what are the components of a mortar

A

barrel, bi pod, sight, base plate

30
Q

what is the function of a mortar

A

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

31
Q

what is the CWR of a mortar

A

greater then 20%

32
Q

two ways to influence frag in a mortar

A

pre formed frag liner or internal scoring

and material from which they are made good for fragmentation

33
Q

what is windage

A

gap between the outer

wall of the bomb and the inner wall of the tube.

34
Q

What are the firing mechanisms

A

Electric
Percussion
Electric precussion

35
Q

Set back forces are less then artilliary shells

A

.

36
Q

Obfuscation defination

A

The effect created by rings or groves along the mortar

37
Q

What is the purpose of rifling

A

Is to impart spin on the projectile as it travels along the bore

Atmc (18 decks)

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