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Flashcards in Machine Gun Employment Deck (42)
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1

What is the manual for Crew Served Machine Guns?

FM 3-22.68

2

What is the Max Ordinate

Highest point of trajectory between muzzle and the base of the target. Usually 2/3 of the range.

3

What is the Cone of Fire?

Pattern a burst of fire makes in the air on it's way to the target.

4

What is the beaten zone?

Elliptical Pattern forme on the ground by the impact of the rounds.

5

What is the danger space?

Space between the MG and target where the trajectory is less than 1.8m above the ground.

6

Three classes of fire?

- Respect to the ground
- Respect to the gun
- Respect to the target

7

Two types of fire in respect to the ground.

-Grazing Fire
-Plunging Fire

8

Six types of fire in respect to the gun?

-Fixed Fire
-Traversing Fire
-Searching Fire
-Traverse and Search
-Swinging Traverse
-Free Gun

9

What is fixed fire?

Point target when depth of beaten zone covers the target

10

What is traversing fire?

Fire distributed in width.

11

What is searching fire?

Fire distributed in depth.

12

What is traversing and searching fire

Fire in depth and width

13

What is swinging traverse?

Fire in wider distance than lateral

14

What is free gun?

Rapid major changes in direction and elevation.

15

What are the four fires in respect to target?

-Frontal Fire
-Flanking Fire
-Oblique Fire
-Enfilade Fire

16

What is frontal fire?

Long axis of the beaten zone is in line with the target at a right angle.

17

What is flanking fire?

Gunner is on the flank of the target

18

What is oblique fire?

Fire at anything other than a right angle.

19

What is enfilade fire?

The long axis of the beaten zone covers the long axis of the target.

20

What are applications of fire?

Methods used to cover a Target area

21

What is the application of fire for a point target?

Fixed fire.

22

What is the application of fire for area targets?

Gunner fires center mass, then traverses and searches.

23

What is the application of fire for linear targets

Initial point of aim is in the middle, then gunner adjusts.

24

What is the application of fire for a deep target?

Searching fire

25

At what ranges can you employ overhead fires?

350m-850m

26

What AR covers safety measures for overhead fires?

AR 350-63

27

What are the conditions of a defilade position?

-Machine gun and crew are completely behind masking terrain.
-Must have an observer

28

What are the six elements of fire commands?

-Alert
-Direction
-Description
-Range
-Method of Fire
-Command to Fire

29

What are the principles of Machine Gun Employment?

Pairs
Interlocking fields of fire
Coordination of Fires
Mutual Support
Defilade
Enfilade
Economy
Protection

30

What are the three rates of fire?

Sustained
Rapid
Cyclic