MCG Flashcards
Where is the MG placed in the Assault?
Where is best supports the maneuvering element
What manuals cover machine gun employment?
FM 3-22.68, FM 3-21.8 (7-8)
What are the classes of fire?
- respect to the ground
- respect to the weapon
- respect to the target
Types of fire for respect to the ground?
Plunging Fire:
Grazing Fire:
What is grazing fire?
Occurs when the center of the cone of fire rises less than 1 meter off the ground.
What is plunging fire?
Occurs when danger space is within the beaten zone. Plunging fire occurs at longer ranges,when firing from high ground onto low ground and when firing into abruptly rising ground
What is danger space?
Space between the machine gun and the target where the trajectory rises less than 1.8 meters (avg. height of a man) from the ground
What is the beaten zone?
The elliptical pattern formed on the ground on the target by the striking rounds. The length of the beaten zone changes as the range increases.
What is the cone of fire?
The pattern rounds create on the way to the target.
Types of fire for respect to the weapon?
Fixed fire Traversing Fire Searching fire Traversing and searching fire Swinging traverse Free gun
What is fixed fire?
Delivered against a point target when depth and width of beaten zone covers the target. Only one aiming point is needed to provide target coverage.
What is traversing fire?
Fire distributed IN WIDTH with successive changes in direction.
What is searching fire?
Fire distributed IN DEPTH by changes in elevation.
What is Traversing and Searching Fire?
Fire distributed IN WIDTH AND DEPTH by changes in elevation and direction.
What is Free Gun?
Fire distributed against a target that requires rapid, major changes is direction and elevation.
Types of Fire with respect to the target?
- Frontal fire
- Flanking fire
- Oblique Fire
- Enfilade fire
What are the applications of fires?
Point target: Fixed Fire Area Target: Traverse and search Linear Target: traversing fire Deep target: Searching fire Linear targets with depth: traverse and search
What is a defilade position?
When the machine gun and it’s crew are completely behind terrain that masks them from the enemy.
What are the methods of fire control?
Verbal Hand and arm signals Prearranged signals Personal contact Range cards SOP's
What is the elevation scale range on the M192 tripod?
0 to approximately 530 mils
What is the Traversing scale range on the M192 tripod?
0 to approximately 900 mils
What does each range card contain?
Weapon symbol Sector of fire PDF or FPL Range, azimuth and number label to predetermined targets. Dead space Distance and azimuth from a known point or 8 digit grid. Magnetic north arrow Data section
What are the three positions of a machine gun in a patrol base?
Primary, alternate and supplementary.
What are the 6 elements of a Fire Command?
1-Alert 2-Direction 3-Description 4-Range 5-Method of Fire 6-Command to open fire
What are the principles of machine gun employment?
Mutual support Coordination Interlocking Sited in defilade Sited to produce enfilade fire Cover and concealment Economy of ammunition
What is deadspace?
Folds or depressions in the ground which prevent targets from being engaged from a fixed position
What is the form for a range card?
DA Form 5517-R
When is tracer burnout for the 240?
900 meters
What is the max range for grazing fire?
600 meters
