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Flashcards in Wire Deck (34):
1

What are barbed wire obstacles

reinforcing obstacles designed to impede, slow, or stop the movement of foot troops, and in some cases, tracked and wheeled vehicles

2

What are barbed wire entanglements

artificial obstacles designed to impede the movement of foot troops and, in some cases, tracked and wheeled vehicles.
The materials used in constructing barbed wire entanglements are relatively lightweight and inexpensive, considering the protection they afford. Barbed wire entanglements can be breached by fire but are built rapidly, repaired, and reinforced.

3

What are the main requirements when setting up and employing wire obstacles

• Must be under friendly observation, covered by fire, and where practical protected by anti-personnel mines, trip flares, and warning devices
• Concealed from enemy observation as far as practical by incorporating terrain features, ie reverse slopes, hedges, woods, and fence lines
• Should always be erected in irregular and non-geometrical traces
• Must be coordinated with other elements of the defense
• Should always be deployed in depth
– Belts
– Bands
– Zones

4

What is a belt

an entanglement one fence in depth.

5

What is a band

A band consists of two or more belts in depth, with no interval between them. The belts may be fences of the same type, or the band may be composed of two or more fences of different types.

6

What is a zone

A zone consists of two or more bands or belts in depth, with intervals between them.

7

What is the difference between fixed and portable entanglements

One is built in place and the other can be moved without complete disassembly

8

In zones, how are lanes and gaps arranged

Staggered in a zig zag pattern

9

How are entanglements classified

By use, depth, and whether they are fixed or portable

10

What are the three classifications of the use of entanglements

– Tactical
– Protective
– Supplementary

11

How are tactical entanglements placed

sited parallel to and along the friendly side of the final protective line

12

How are protective entanglements placed

located in places to prevent surprise assaults from points close to the defense area

13

How much buffer should there be from a protective entanglement and why

40-100 meters; In order to stay out of hand grenade distance

14

Where is supplementary wire placed

In front of the FEBA to break up the exact pattern of tactical wire
AND
To the rear of the FEBA it is used to connect and reinforce all the protective wire entanglements

15

Supplementary Wire = ?

(mean Perimeter) x (1.25) x (number of belts)

16

Protective Wire = ?

(perimeter) x 1.10) x (number of belts)

17

Tactical Wire = ?

(mean perimeter x (1.25) x (number of belts)

18

What are some advantages of Barbed Steel Tape

– Size and weight
– Less time consuming
– Harder to breach
– Can not be cut easily with wire cutters


19

What are some disadvantaged of Barbed Steel Tape

– Breaking strength
– Dispenser
– Not recoverable to its original form – More easily cut by shell fragments
– Can be cut with a bayonet

20

What are the two types of double apron fence

– 4- and 2- Pace Double Apron
– 6- and 3- Pace Double Apron

21

Which is better, double apron fence or triple strand concertina wire?

Triple strand concertina wire

22

What are the two categories of obstacles

Existing and Reinforcing (placed through military effort)

23

What are the two subsets of the "Existing" obstacle

Natural and Cultural

24

5 types of reinforcing obstacles

- Demolition
- Constructed
- Contamination - Expedient
- Landmines

25

How far away should constructed obstacles be emplaced

a terrain feature away from direct engagement areas.

26

3 types of ditches

- Triangular
- Sidehill Cut
- Trapizoidal

27

SWEATMSS

Security
Water
Electricity
Admin and HN Training
Trash
Medical
Sewage
Shelter

28

Where is the aid station located

centrally

29

3 types of TACFAC

initial
temp
permanent

30

3 Types of pickets

U-shaped (steel)
Screw (wood)
Wood

31

Types of shelters

hasty
deliberate

32

3 categories of shelters

surface
underground
cut and cover

33

3 types of ditches

triangular
side hill cut
trapezoidal

34

Wire Ties

Top eye
intermediate eye
apron
post tie (most common)