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401-101 > Projectiles, Fuses, Rockets, Pyro, Grenades > Flashcards

Projectiles, Fuses, Rockets, Pyro, Grenades Flashcards

M Horn

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1
Q

A fuze is armed when:

A

All the safety devices and features incorporated in the fuze have been eliminated but has not begun it’s firing sequence

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2
Q

Define arming

A

When a fuze is changing from a safe to armed condition

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3
Q

Define boresafe

A

Fuze is not capable of detonating until it leaves the bore of the weapon

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4
Q

What is Firing?

A

the action initiating the explosive train in the fuze

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5
Q

What is a pistol?

A

A mechanism containing a heavy firing pin or striker, but has no explosive components

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6
Q

Define cocked striker

A

A firing pin that is held in a cocked position under spring tension

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7
Q

Describe acceleration/setback forces in a fuse.

A

Incorporates the the rearward movement of the fuse parts caused by forward acceleration during it’s launching.

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8
Q

What are the common terms for cocked striker?

A
  • Cocked detonator
  • Cocked firing pin
  • Firing pin under spring tension
  • Hung strike
  • Hung detonator
  • Hung firing pin
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9
Q

What is a lead?

A

A component used to transmit a detonation from one detonating component to a succeeding HE component.

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10
Q

Name 4 forces that can act on a fuze

A
  • Centrifugal
  • Creep
  • Setback
  • Inertia
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11
Q

What are the two types of Proximity fuzes?

A

-Active
-Passive

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12
Q

What are the main components of a projectile?

A

-Fuse-Ogive-Bourrelet-Body-Driving band-Base Plate

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13
Q

What does the bourrelet do?

A

Bears on the rifling and aids in centring and guiding the projectile in the gun barrel

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14
Q

What is the cannelure on a projectile?

A

Grooves between or after the rotating bands used to clean the bore of the weapon of material from the rotating bands.

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15
Q

Projectiles fall into 5 catergories, what are they?

A
  • High Explosive
  • Carrier
  • Shot
  • Practice
  • Dummy/drill
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16
Q

HE projectiles can be categories as?

A
  • Frag/blast
  • HEAT
  • HESH
  • Armour Piercing/Semi-Armour Piercing
17
Q

How do APDS shot projectiles work?

A

The projectile is a smaller hard dense alloy with a sabot encasing to allow it to be fired in a larger barrel. The sabot is discarded after firing of the post or petal type.

18
Q

What does APDSFS stand for?

A

Armour piercing discarding sabot fin stabilised

19
Q

What is a HERA projectile?

A

High explosive rocket assisted

20
Q

Name 5 or more carrier projectile payloads

A
  • Smoke/WP
  • Flare/illumination
  • Incendiary
  • Chemical
  • Flechettes
  • Radar Echo (Chaff)
  • Propaganda
  • Sub-Munitions
  • Radio Jamming Transmitter
21
Q

Where can fuses be positioned in a projectile or rocket munition?

A

-Nose
-Base

22
Q

What are means of initiation for rocket and projectile fuses?

A
  • Impact
  • Time
  • Proximity
23
Q

What are some common projectile fuse identification features?

A

Point Detonating
-Single piece construction
-Crushable nose shield
-May have SQ/Delay selector

Base Detonating
-Screwed into base of round
-Most are flush
-Nomenclature stamped on base
-Tracer elements

Mechanical Time
-Multi-piece construction
-May have time calibration scale
-Setting lugs/slots

24
Q

What are some of the identifying features of a mechanical time projectile fuse?

A

Multi-piece construction
May have a time calibration scale
Setting lugs or slots
SQ/Delay setting if an impact element is integral (MTSQ)

25
Q

A PIBD fuse can use what methods of initiation?

A

1/ Electrical-Piezo

2/ Mechanical-Spitback

26
Q

PTTFs stand for what and is an alternative to what?

A

-Powder Time Train Fuze
-Mechanical clockwork

27
Q

What are the components of a Rocket?

A
  • Warhead
  • Fuse
  • Rocket motor
  • Venturi
  • Fins
28
Q

What is in a rocket warhead?

A

Payload and fusing system

29
Q

Rockets can be broken-down into what groups?

A

-HE
-Carrier
-Practice

30
Q

HE Rockets can be what?

A
  • Frag/Blast
  • HEAT
  • HESH/HEP
31
Q

Carrier rockets can broken down into what?

A
  • Smoke screening, marking, signalling
  • Illuminating
  • Incendiary
  • Decoy Radar echo (chaff)
  • Anti-pers (Shrapnel or Fletchette)
  • Submunitions
  • Chemical Agents
32
Q

What does a standard pyrotechnic composition consist of?

A

-Oxidiser
-Fuel
-Binding and waterproof agent
-Colour intensifier

33
Q

List theuses for a pyrotechnic:

A

-Smoke screen generator
-Delay fuzing
-Incendiary munition
-Jet engine starting
-Illumination

34
Q

What are the three main components of a grenade?

A

-Fuze
-Body
-Main filling

35
Q

Grenade as categorised by their what?

A

-Type
-Method of projection

36
Q

What are the three categories/methods of projection for grenades?

A

-Hand grenades
-Rifle grenades
-Projected grenades

37
Q

What are the three main types of grenades?

A

-HE
-Carrier
-Prac

38
Q

What are HE grenades divided into? (4 groups)

A

-Blast
-Frag
-HEAT
-HEDP

39
Q

Name 5 types of grenade carrier compositions (RIIPW)

A

-Riot Control
-Incendiary
-Illumination
-Pyrotechnic
-WP

401-101 (17 decks)

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