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Flashcards in Machine gun Employment Deck (28)
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1
Q

7 Principals of MG employment

A
Mutual support 
Coordination 
Interlocking fire
Sited in defilade
Sited to produce enfilade fire
Cover and concealment
Economy of ammo
2
Q

What needed for Overhead Fire

A

Gun mounted on tripod or vehicle

3
Q

Gunner rule

A

Troops between 350m and 850m

Lay gun on tgt with sight pic
Set rear sight to 1600m
New sight pic is limit of fire when see feet of troops

4
Q

Fire commands

A
Alert
Direction
Distance 
Range
Method of fire
Command to fire
5
Q

Field manual #

A

FM 3-22

6
Q

Classes of fire

A

Respect the ground
Respect the weapon
Respect the target

7
Q

Types of tgts

A

Area tgt
Liniar tgt
Deep tgt
Point tgt

8
Q

Types of fire

A

Frontal
Enfilade
Oblique
Flanking

9
Q

6 Characteristics of fire

A
Line of sight
Burst of fire
Trajectory 
Max ord
Cone of fire
Beating zone
10
Q

Danger space

A

Under 1.8m off ground

11
Q

Grazing fire

A

Center of cone of fire less then 1m from ground

12
Q

6 Ways to fire

A
Fixed fire
Traversing fire
Searching fire
Traverse and search
Swinging Travers
Free gun
13
Q

Respect to the ground

A

Dead space
Grazing fire
Plunging fire

14
Q

Respect to tgt

A

Enfold
Frontal
Flanking
Oblique

15
Q

Respect to machingun

A
Fixed fire
Traversing fire
Searching fire
Traversing and searching
Swinging traverse 
Free gun
16
Q

FPF

A

Final protective fire.

Prearranged barrier of fire to stop enemy movement across defensive line.

17
Q

FPL

A

final protect to the line

A predetermined line along which grazing fire is placed to stop enemy assault

18
Q

Range card is what form

A

DA 5517-R

19
Q

122 tripod

A

Elevation handwheel 100 mils /5 mils per turn

Traverse bar has 875 mils

20
Q

Each gunner makes how many range cards

A

2

21
Q

Range card contains the following 8 things

A
Weapon symbol 
Sector of fire. 
PDF or FPL. 
Range, azmuth , number label to Target.
Dead space. 
Grid location(Distance + azimuth from known point)
Magnetic north arrow. 
Data section.
22
Q

192 tripod

A

Elevation 530 mils

Travers bar 900 mils

23
Q

3 firing positions

A

Primary
Alternate
Supplementary

24
Q

Where is MG is assult

A

Where is best supports the maneuver element

25
Q

6 Methods of fire and control

A
Oral 
Hand arm sig
Prearranged sig
Personal contact 
Range cards
SOPs
26
Q

M240B rates of fire

A

Sustained
100 rpm
6 to 9 Rd burst
Barrel change 10 min

Rapid
200 rpm
10 to 12 Rd burst
Barrel change 2 min

Cyclic
650-950 rpm
Barrel change 1 min

27
Q

Tracer burn out on 240b

A

900m

28
Q

Grazing fire 249 saw

A

500m