Podcast
Questions and Answers
What criteria could require a SBF position to displace?
What criteria could require a SBF position to displace?
Supporting fires masked by supporting unit.
Which of the MG employment principles covers ammo consumption and the amount required to maximize the effects of fire and minimize excessive consumption?
Which of the MG employment principles covers ammo consumption and the amount required to maximize the effects of fire and minimize excessive consumption?
Economy of rounds
What does the acronym ADDRAC stand for and what is it the criteria for?
What does the acronym ADDRAC stand for and what is it the criteria for?
Alert, Direction, Description, Range, Assignment, Control
Inside displacement criteria, what are the methods of displacement?
Inside displacement criteria, what are the methods of displacement?
What is the preferred method of employment in the offense?
What is the preferred method of employment in the offense?
What two missions can be assigned to a MG in the defense?
What two missions can be assigned to a MG in the defense?
What are the characteristics of fire?
What are the characteristics of fire?
What are the classes of fire with respect to ground?
What are the classes of fire with respect to ground?
What are the classes of fire with respect to a target?
What are the classes of fire with respect to a target?
What is the prescribed distance for MSL's?
What is the prescribed distance for MSL's?
When conducting overhead fire on undulating/un-level terrain, what are the methods to establish an OSL?
When conducting overhead fire on undulating/un-level terrain, what are the methods to establish an OSL?
What is the point range of the 240?
What is the point range of the 240?
What is the max effective range of the 240?
What is the max effective range of the 240?
What is the area range of the M2A1?
What is the area range of the M2A1?
What type of fire would be used to suppress a target that requires major changes in direction but not elevation?
What type of fire would be used to suppress a target that requires major changes in direction but not elevation?
What type of fire would be used on a point target/target that requires little to no manipulation?
What type of fire would be used on a point target/target that requires little to no manipulation?
What is flanking fire?
What is flanking fire?
What is enfilade fire?
What is enfilade fire?
What are fires in support of maneuver?
What are fires in support of maneuver?
What are fires in support of isolation?
What are fires in support of isolation?
What are fires in support of the assault?
What are fires in support of the assault?
What are long range fires?
What are long range fires?
What are fires identified as FPL and can only be fired when authorized by the unit commander?
What are fires identified as FPL and can only be fired when authorized by the unit commander?
What are close defensive fires?
What are close defensive fires?
Flashcards
SBF Displacement Criteria
SBF Displacement Criteria
Supporting fires are masked by the unit being supported, requiring a shift in position.
Economy of Rounds
Economy of Rounds
This principle balances maximizing fire effects with efficient ammo use, avoiding excessive consumption.
ADDRAC Meaning
ADDRAC Meaning
Alert, Direction, Description, Range, Assignment, Control. It's used for fire control.
MORT Meaning
MORT Meaning
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Displacement Methods
Displacement Methods
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Preferred Offensive Employment
Preferred Offensive Employment
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MG Defense Missions
MG Defense Missions
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Fire Characteristics
Fire Characteristics
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M240 Ranges
M240 Ranges
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M2A1 Ranges
M2A1 Ranges
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MK19 Ranges
MK19 Ranges
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Swinging Traverse
Swinging Traverse
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Fixed Fire
Fixed Fire
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Flanking Fire
Flanking Fire
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Enfilade Fire
Enfilade Fire
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Grazing Fire
Grazing Fire
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Fires in Support of Maneuver
Fires in Support of Maneuver
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Fires in Support of Isolation
Fires in Support of Isolation
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Fires in Support of Consolidation
Fires in Support of Consolidation
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Fires in Support of Assault
Fires in Support of Assault
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Long Range Fires
Long Range Fires
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FPF Meaning
FPF Meaning
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Close Defensive Fires
Close Defensive Fires
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M240 Rapid Rate of Fire
M240 Rapid Rate of Fire
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M2A1 Sustained Rate of Fire
M2A1 Sustained Rate of Fire
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MK19 Cyclic Rate of Fire
MK19 Cyclic Rate of Fire
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Classes of Fire: Ground
Classes of Fire: Ground
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Classes of Fire: Target
Classes of Fire: Target
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Classes of Fire: Gun
Classes of Fire: Gun
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Minimum Safe Lateral (MSL)
Minimum Safe Lateral (MSL)
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Study Notes
- Supporting fires are masked by the supporting unit requiring a SBF position displace.
- Minimizing ammo consumption and maximizing fire effects are covered by the economy of rounds.
- ADDRAC stands for Alert, Direction, Description, Range, Assignment, and Control.
- MORT stands for Method, Objective, Route, and Time.
- Echelon and Unit are methods of displacement within displacement criteria.
- By section is the way to employ in the offense.
- PRF and FPL are the two missions assigned to a MG in the defense.
- Burst of fire, Trajectory, Cone of fire, Beaten Zone, Dead Space, and Danger Space are characteristics of fire.
240 Rates of Fire
- Sustained rate of fire: 100 RPM, 6-8 rounds per burst, 4-5 second pause, barrel change every 10 minutes.
- Rapid rate of fire: 200 RPM, 6-8 rounds per burst, 2-3 second pause, barrel change every 2 minutes.
- Cyclic rate of fire: 550-650 RPM, barrel change every 1 minute.
M2A1 Rates of Fire
- Sustained rate of fire: 40 or less RPM, 6-9 rounds per burst, 10-15 second pause, barrel change at the end of the day.
- Rapid rate of fire: 40 or more RPM, 6-9 rounds per burst, 5-10 second pause, barrel change every hour.
- Cyclic rate of fire: 450-600 RPM, barrel change every 30 minutes.
MK19 Rates of Fire:
- Sustained rate of fire: 40 RPM, 6-9 rounds per burst, 10-15 second pause.
- Rapid rate of fire: 60 RPM, 6-9 rounds per burst, 8-10 second pause.
- Cyclic rate of fire: 325-375 RPM.
- Grazing and Plunging are the classes of fire with respect to Ground.
- Frontal, Flanking, Oblique, and Enfilade are the classes of fire with respect to the target.
- Fixed, Traversing, Searching, Searching & Traversing, Swinging Traverse, and Free Gun are the classes of fire with respect to the gun.
- 15 degrees is the prescribed distance for MSL's.
- Gunner Leader Rule is a method to establish an OSL when conducting overhead fire on undulating/un-level terrain.
Point, Area, Max Effective Range:
- 240: Point - 800m, Area - 1800m, Max Effective - 1800m
- M2A1: Point - 1500m, Area - 1830m, Max Effective - 1830m
- MK19: Point - 1500m, Area - 2212m, Max Effective - 2212m
- Swinging Traverse is the fire type to suppress a target needing major direction changes, not elevation.
- Fixed fire is used on a point target needing little to no manipulation.
- Flanking fire is delivered against the flank of a target, or the side/rear of an enemy formation.
- Enfilade fire is where the long axis of the beaten zone coincides or nearly coincides with the long axis of the target.
- Grazing fire is when the center of the cone of fire does not rise more than 1 meter above the ground.
- Fires in support of maneuver go beyond maneuver.
- Maneuver units immediate obj during the assault are fires in support of isolation.
- When units are most vulnerable to enemy counterattack means fires are in support of consolidation.
- Delivering against the most immediate & serious threat falls under fires in support of the assault.
- Interdicting and disrupting opponents before they get to the area defines long range fires.
- FPF refers to fires identified as FPL and can only be fired when authorized by the unit commander.
- Immediate threat to the units defense, primary EA defines close defensive fires.
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Description
Explore machine gun employment techniques including supporting fires, ammo economy, and displacement methods. Learn about ADDRAC, MORT, and offensive/defensive employment strategies. Understand the rates of fire for the M240 and M2A1 machine guns, including sustained, rapid, and cyclic rates.
