Weapons Flashcards
Major Components
Barrel and Barrel Extension
Receiver/Barrel Jacket Assembly
Cover Assembly
Retracting Slide Assembly
Breech Bolt Assembly
Recoil Buffer Assembly
Rod Assembly
Back Plate Assembly
Cycle of Operation
Firing
Recoiling
Cocking
Counter-Recoiling
Automatic Firing
Feeding the Round
Extracting the Round
Ejecting the Round
Headspace
Distance between the front face of the bolt and the rear end of the barrel.
Timing
Distance between the front face of barrel extension and the rear face of the trunnion block.
The point at which the firing pin is released when the recoiling parts reach the battery position during counter-recoiling.
Cook-off
Firing of the explosive components of a round due to overheating of the weapon and not due to actuating the mechanism.
Hang Fire
A delay in the function of the propelling charge.
Misfire
The complete failure of the weapon to fire.
Runaway Gun
A failure of the weapon to cease firing when the triggers are released.
Safe
Refers to a weapon not rendering a dangerous condition.
Safe & Clear
Indicates the weapon has been visually checked to be clear of ammunition and does not render a dangerous condition.
Min Engagement Distance
300 Meters
Max Effective Range
3000 Meters
Tracer Burnout
1500 Meters
Max Distance
7500-8000 Meters
Or
4 Miles
Twist Direction
Right Hand
Imposed Belt Feed Load
15 Lbs
Rate of Fire (Heavy Barrel)
650-750 Rounds
Rate of Fire (Light Barrel)
750-850 Rounds
Max Single Burst W/O Danger of Cookoff
150 Rounds
WEZ on Hot Aspect
60 degrees
WEZ on Cold Aspect
30 Degrees
WEZ on Jack
30 degrees
Weight of Gun
65 Lbs
Rifling Length
71 Inches
Number of Grooves
8
Weapons Conditions:
Weapons Free
Fire only at targets not identified as friendly IAW current ROE.
Weapons Conditions:
Weapons Tight
Fire only at targets positively identified as hostile IAW current ROE.
Weapons Conditions:
Weapons Hold
Fire only in self-defense or in response to a formal order.
General Vehicle Kill Criteria:
K-Kill
Catastrophic Kill
Damage to a system such that economic repair is not feasible and the system is only fit for cannibalization/salvage of parts.
General Vehicle Kill Criteria:
M-Kill
Mobility Kill
Damage to a vehicle so that the driver cannot maintain controlled movement.
General Vehicle Kill Criteria:
F-Kill
Firepower Kill
Damage to the vehicle main armament so that direct fire against a target cannot be completed. The damage cannot be repaired by the crew on the battlefield.
General Vehicle Kill Criteria:
P-Kill
Personnel Kill
The incapacitation of fighting troops in a vehicle.
Personnel Damage Criteria:
Harassed
One aircraft has rounds on target for one pass. Harassed personnel will seek cover and maneuver.
Personnel Damage Criteria:
Neutralized
Will normally disrupt and disorganize an attacking unit sufficiently to render the unit incapable of conduction an effective attack. Incapable of offensive action.
Personnel Damage Criteria:
Destroyed
Effective engagement of an organized ground unit, rendering the unit incapable of performing any military mission. Incapable of defending themselves.
GAU-18 Emergency Procedures
1) Gun - Trained on Target (Wait 5 secs)
2) Gun - CHARGED
3) Gun - Fire
IF GUN STILL FAILS TO FIRE
4) “LEFT/RIGHT GUN BENT”
5) Gun Power Switch - OFF
6) Gun - Clear (Within 10 secs)
IF NOT CLEARED WITHIN 10 SECS, WAIT 5 MINS TO FIRE AGAIN
Weapons Employment Requirements
1) Visual Survivor/Friendlies
2) Tally Threat
3) WEZ Deconfliction Met
4) Position Call - IN
Types of Fire
Hover, Running, Diving
Weapons Employment Fundamentals
Control
Flexibility
Fire and Maneuver
Surprise
Timing
Exploitation
Additional Considerations
- Always assume area is hostile
- Recon the objective area
- Do not lose the survivor
- Avoid flying through gun to target line
- Do not do the enemy’s job for him
- Threat versus target
Weapons Employment Patterns:
L-Attack
100 ft AGL, 0.7 - 0.8 DME separation, pop up max rate climb, 1.2 NM from target, 6 degree dive
Weapons Employment Patterns:
Racetracks
Two parallel legs connected by 180 degree turn. Max rate turns. 0.2 - 0.3 DME spacing. 70-80 KIAS. 10 to 20 second firing legs.
Weapons Employment Patterns:
Dogbones
K Template, spacing 0.5 - 0.8 NM. 70-80 KIAS. Firing axis should be 15-20 seconds long.
Weapons Employment Patterns:
U-Attacks
0.1 to 0.2 NM
Weapons Employment Patterns:
Randoms
Field of Fire:
Azimuth
0 to 171 degrees
Field of Fire:
Elevation
Nose: 0 degrees
Beam: +3 degrees
Tail: +6 degrees
Field of Fire:
Depression
Nose: -51 degrees
Beam: -48 degrees
Tail: -45 degrees
Breech Bolt Assembly Parts
Recoil Buffer Assembly Parts
Cover Assembly Parts
Barrel and Barrel Extension Assembly Parts
Back Plate Assembly Parts
Types of Fire:
Hover
Any engagement conducted below ETL. (effective translational lift)
Types of Fire:
Running Fire
An engagement from a moving helicopter flown above ETL with an attack attitude less than 10 degrees nose low.
Types of Fire:
Diving Fire
An engagement from a moving helicopter that is in a diving profile, more than 10 degrees nose low.
Weapons Employment Patterns
- Racetrack
- L-Attack
- U-Attack
- Dog Bone
- Random
Ballistics
- Interior
- Exterior
- Aerial
- Terminal
Ballistics:
Interior
Deals with characteristics that affect projectile motion inside the barrel
Ballistics:
Exterior
Deals with characteristics that influence the motion of the projectile as it moves along its trajectory.
Ballistics:
Aerial
Rotor Downwash, angular rate, spin-stabilized projectiles.
Ballistics:
Terminal
The characteristics and effects of the projectile at the target.
Minimum Safe Distance (Training) per JFIRE
No friendlies within 500 meters of intended target
Ricochet Fan (Training) per JFIRE
No ground personnel with +/- 30 degrees of Final Attack Heading out to 3000 meters
