Machine gun Employment Flashcards
7 Principals of MG employment
Mutual support Coordination Interlocking fire Sited in defilade Sited to produce enfilade fire Cover and concealment Economy of ammo
What needed for Overhead Fire
Gun mounted on tripod or vehicle
Gunner rule
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
Fire commands
Alert Direction Distance Range Method of fire Command to fire
Field manual #
FM 3-22
Classes of fire
Respect the ground
Respect the weapon
Respect the target
Types of tgts
Area tgt
Liniar tgt
Deep tgt
Point tgt
Types of fire
Frontal
Enfilade
Oblique
Flanking
6 Characteristics of fire
Line of sight Burst of fire Trajectory Max ord Cone of fire Beating zone
Danger space
Under 1.8m off ground
Grazing fire
Center of cone of fire less then 1m from ground
6 Ways to fire
Fixed fire Traversing fire Searching fire Traverse and search Swinging Travers Free gun
Respect to the ground
Dead space
Grazing fire
Plunging fire
Respect to tgt
Enfold
Frontal
Flanking
Oblique
Respect to machingun
Fixed fire Traversing fire Searching fire Traversing and searching Swinging traverse Free gun
FPF
Final protective fire.
Prearranged barrier of fire to stop enemy movement across defensive line.
FPL
final protect to the line
A predetermined line along which grazing fire is placed to stop enemy assault
Range card is what form
DA 5517-R
122 tripod
Elevation handwheel 100 mils /5 mils per turn
Traverse bar has 875 mils
Each gunner makes how many range cards
2
Range card contains the following 8 things
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.
192 tripod
Elevation 530 mils
Travers bar 900 mils
3 firing positions
Primary
Alternate
Supplementary
Where is MG is assult
Where is best supports the maneuver element
6 Methods of fire and control
Oral Hand arm sig Prearranged sig Personal contact Range cards SOPs
M240B rates of fire
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
Tracer burn out on 240b
900m
Grazing fire 249 saw
500m