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weapons systems - guns > Ammunition > Flashcards

Ammunition Flashcards

1
Q

“the projectiles with their fuses, propelling charges, or primers fired from guns”

A

Ammunition

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2
Q

“Ammunition in which fabric bags are used to hold the propellant and the projectile is handled separately.”

A

Bag Ammunition

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3
Q

“Propelling charges for small and medium caliber guns are assembled with primer and powder enclosed in a brass or steel contianer called a cartridge case.”

A

Case Type

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4
Q

What are the two types of Case Type ammunition?

A

Separate Ammunition
Fixed Ammunition

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5
Q

“The primer and propelling charge are contained in a cartridge case as a separate plugged unit from the projectile”

A

Separate ammunition

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6
Q

“The primer, propelling charge, and projectile are assembled into a single unit”

A

Fixed Ammunition

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7
Q

“Used to render honors, no projectile is fired”

A

Saluting Charge

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8
Q

“Contains less than the the service load of powder. Used on reverse-slope targets or target practice to reduce wear.”

A

Reduced Charge

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9
Q

A charge used to clear a round which has become stuck in the gun.

A

Clearing Charge

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10
Q

“In this type of ammunition, the propelling charge is contained in the projectile and continues to burn after the projectile has exited the barrel”

A

Self-Propelled

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11
Q

“A metallic container for holding powder charges and usually includes primer element.

A

Cartridge Case

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12
Q

“The after end of the projectile”

A

Base

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13
Q

“A rectangular cardboard piece folded into a triangular shape and placed into the cartridge case between teh wad and teh case closure plug or peojectile.”

A

Distance piece

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14
Q
A
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15
Q

A cardboard piece held with a distance piece to keep the propellant firmly in place

A

Wad

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16
Q

“The thickness of the propellant grain between surfaces. This determines the burn time of the propellant”

A

Web thickness

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17
Q

A propellant grain with decreasing burning surface will generate ______ propellant gas.

A

Less

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18
Q

The total burning surface area decreases as they burn.

A

Degressive grains

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19
Q

Total burning surface remains approximately constant as it burns.

A

Neutral burning grain

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20
Q

Total burning surface increases as it burns. Generates the most amount of gas and is best for a longer barrel.

A

Progressive Grain

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21
Q

“Initiates the explosive propellant train”

A

Primer

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22
Q

What is the difference between Detonation and Deflagration?

A

Detonate - chemical reacion moves faster than speed of sound (high explosive)

Deflagrate - chemical reaction moves slower than speed of sound (low explosive)

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23
Q

“Sensitive materials that can be initiated by a relatively small amount of heat or pressure”

A

Primary Explosive

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24
Q

Insensitive materials that require a *great amount of heat or pressure to initiate**

A

Secondary / Tertiary explosives

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25
Q

What are the parts to a low-explosive train

A

Primer - high explosive explosive
Igniter - ignites propellant
Propellant - low explosive

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26
Q

What are the parts to the high-explosive train

A

Detonator
Booster
Bursting Charge

27
Q

“A primary high explosive, initiated by a fuse”

A

Detonator

28
Q

“High explosive charge which adds another detonation wave to trigger the bursting charge”

A

Booster

29
Q

“High explosive which provides the destructive shockwave of the warhead”

A

Bursting Charge

30
Q

“A slow burning explosive stage between the detonator and booster to prevent the detonation of the booster for a specific period of time (not the same as a delay fuse).”

A

Delayer

31
Q
A
32
Q
A
33
Q
A
34
Q

What is the purpose of the bourrelet?

A

Acts as a bearing to stabilize the projectile during its travel through the gun bore.

35
Q
A
36
Q

Naval warheads use:

A

High explosive train

37
Q

Naval ammunition uses:

A

Low-explosive train

38
Q

What are the functions of the rotating band?

A

Seals to prevent escape of propellant gas

Engages the rifling

Acts as rear bourrelet on those that do not have one

39
Q

Projectile Type: AA

A

Anti-Aircraft

40
Q

Projectile Type: HC

A

High Capacity

41
Q

Projectile Type: AP

A

Armour Piercing

42
Q

Projectile Type: VT

A

Variable Time (proximity fuse)

43
Q

Projectile Type: 3-P

A

Preframented, Programmable, Proximity Fuse

(Proximity with or without Time Gate, Burst Delay, Variable Time, Armour Piercing, Impact)

44
Q

Projectile Type: PFHE

A

Pre-Fragmented High Explosive

(Anti-Air proximity fused round)

45
Q

Projectile Type: HCER

A

High Capacity Extended Range

(Anti-Surface Round)

46
Q

Projectile Type: NFVT

A

Non-Fragmented Variable Time

(Sighting round, simulates AA)

47
Q

Projectile Type: PRAP

A

Passive Radar Augmented Projectile

(Simulation of misssile RCS)

48
Q

Projectile Type: BLP

A

Blind Loaded Plug

(Practice round with no warhead or fuze, fires but does not detonate)

49
Q

Projectile Type: Dummy

A

Innert training round

(No propellant, primer, fuse, warhead… does not fire)

50
Q

Projectile Type: Test

A

Inert round used for testing firing system (can measure if the firing signals are passed to the round)

51
Q

“initiates an explosive function causing detonation”

A

Fuse

52
Q

Uses an incremental dial which controls a timer use to set a delay time

A

Timer Fuse

53
Q

Two types of Impact Fuses

A

Delay

Super Quick

54
Q

Fuse initiated only after the projectile strikes the target

A

Impact Fuse

55
Q

What target characteristics are measured by Proximity Fuses?

A

Presence

Distance

Direction

Velocity

56
Q

What are two types of Proximity Fuses wrt the phenomena they detect?

A

Radio (VHF, UHF, Microwave)

Non-Radio (Visible, Infrared, UV, Acoustic, Electrostatic, Barometric)

57
Q

Describe a Doppler Fuse

A

Measures the Doppler Shift between the projectile and the target to determine proximity.

58
Q

What are functions of fuses?

A

Keep the weapon safe
Arm the weapon
Detect the target
initiate detonation
Determining the direction of detonation

59
Q

“Keeps the ordnance section of a munitino from arming during shipping, handling, and storage”

A

Safe and Arming Device (SAD)

60
Q

“An explosive train in which the explosive path between the primary explosive and the booster explosives is functionally separated until arming

A

Interupted Explosive Train

61
Q

The explosive path between the primary explosive and other explosive elements are not separated

A

Non-Interupted Explosive Train

62
Q

How many safety devices in military high yield warheads?

A

2

63
Q

“A concave metal hemisphere or cone backed by a high explosive. The metal forms a high speed liquid metal jet.”

A

Shaped Charge

Note: It is only kinetic, does not melt through the metal.

64
Q

What are the three classifications of propelling charges?

A

Bag
Case
Self-propelled

weapons systems - guns (6 decks)

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