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Machine gun Theory
Terms in this set (37)
What is the definition of trajectony?
The curved path of the projectile in is figh tiom the muzle o he weapon to its impact.
What is the difference between "cone of fire" and "beaten zone"?
The beaten zone is the eliptical pattern formed by the cone of fire. The cone of fire is a group of projectiles following a similar trajectory to the target
Does the width of the beaten zone increase or decrease due to the slope of the ground?
Neither, the width remains the same.
What are the classes of fire in respect to?
The ground, target, and the gun
What is the definition of enflade fire?
Fire along the long axis of the beaten zone that coincides or nearly coincides with the long axis of the target and can be either frontal or flanking
What are the classes of fire with respect to the target?
Frontal, flanking, oblique, and enfailade
What are the four parts of the fire control process
identify probable maneuver. Determine speed target acquisition. Shift fires to enemy locations and determine where and how to mass fire the enemy shene d effects rnent forces t refocus and redistribute their effects
What are the six essential elements of the inial fire command?
Alert, Direction, Description, Range, Method of fire, and the command to open fire
What are some reasons to shift fire to refocus and redistribute fire?
The appearance of another enemy force which poses a greater threat than the one curently being engaged
What are the 3 Fire Patterns?
Frontal, Crossfire, Depth
What are the fighting position considerations?
Cover, Concealment, Fields of Fire, Size, and Improvements
Target with width, changes in Deflection
Target with depth, changes in Elevation
Traverse and Search?
Target with width and depth, changes in deflection and elevation
Major changes in deflection
What do Leaders use MG for?
Fire across the platoon front, cover obstacles tie in with adjacent units, concentrate fires where you want to kill the enemy
What are the characteristics of fire?
Trajectory, Cone of Fire, Beaten Zone
What are the Terrain Based Fire Control measures?
TRP, Engagement Area, Sector of Fire, Direction of Fire, Quadrants, MEL Restrictive Fire Line, FPL
What are the Threat Based Fire Control measures?
Fire Patterns, Target Array, Engagement Priorities, Weapons Ready Posture, Engagement Criteria, Weapons Control Status, ROE, Weapons Safety Posture, Engagement Techniques
What are the elements of the Fire Command?
Alert, Direction, Description, Range, Method of Fire, Command to Open Fire
Name the Defilade positions?
Classes of Fire in respect to?
Ground, Target, Gun
Name the Engagement Techniques?
Point Fire, area fire, alt fire, sequential fire, simultaneous fire, observed fire, time of suppression, recon by fire.
Who uses Threat Based Fire Control measures?
CO and/or the PL
Classes of Fire in respect to the Gun?
Fixed, Traverse, Search, Traverse and Search, Swinging Traverse, Free Gun
Classes of Fire in respect to the Target?
Frontal, Flanking, Oblique, Enflade
Classes of Fire in respect to the Ground?
Definition of Overhead Fire?
Firing over the heads of friendly troops
Overhead Fire clearance requirements?
-The height of a man standing at 1.8 m
-half the vertical deminsion of the 100 percent cone of fire at tbe range of troops
-a margin of safety equal to the vertical distance which extends a 5-mil angle at the gun or 3 meters, whichever is greater
-an additional allowance to compensate for a 15% error in range determination
Overhead Safety precautions?
(1) The safety limit has been determined and has been identified on the ground. (2) The gun mount is firmly seated.
(3) Friendly troops have been notified, if at all possible, that fire is to be delivered over them.
(4) The rate of fire does not exceed 40 rounds per minute.
(5) The gun barrel is not badly worn. This condition is indicated by excessive muzle blast.
Limited Visibility Terminology?
Sector of Fire, PDF, FPL, FPF, Sector of Graze, Area of Graze, Pre-Planned Fire
Machine Terminology Gun For Limited Visibility
Sector Of Fire
Final Protective Line
Final Protective Fires
Primary Direction of Fire
Sector of Graze
Area of Graze
What is the definition of overhead fire?
Fire delivered over the heads of friendly troops
What is the definition of reconnaissance by fre?
The process of engaging possible enemy locations to elict atatical response, such as return fire or movement.
Where are final protective fires placed?
On a predetermined line along which grazing fire is placed to stop an enemy assault.
What type of fire is used on the final protedtv line and final protective fires?
How many sectors of fire are Machine Guns normall provided?
Two, primary and secondary
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