PGM Flashcards
CBU-97 advantages and limitations
Advantages:
- blankets area with antiarmor and frag kill mechanisms
- capability against moving targets
Limitations:
- political constraints
- wind and attack axis sensitive
Munition guidance system consists of……
Attitude control system
Flight path control system
3 broad guidance system categories
Control guidance
Homing guidance
Self-contained guidance
AGM-65 employment considerations
Precision accuracy
Fair weather required
Launch and leave
Low collateral damage
Limited standoff
Very flexible tactics
Easy mission planning
AGM-114 and AGM-176 employment considerations (they’re the same)
Precision accuracy
Fair weather required
Low collateral damage
Limited standoff
Very flexible tactics
Easy mission planning
Laser guided bomb disadvantages
Shorter standoff ranges relative to boosted weapons
Required close-in designator support
Line of sight for weapon and designator must be accommodated
Weather/battlefield obscurants may impede guidance
Tactical missile advantages (FOOTSTOMP)
Precision accuracy
Standoff from small-arms and AAA threats
Relatively simple to use
Can hit moving targets
Tactical missile disadvantages (FOOTSTOMP)
Weather must permit target acquisition before launch*
Battlefield obscurants may impede guidance*
Relatively small warheads
- = N/A for HARM
LGB advantages (FOOTSTOMP)
Standoff from small-arms and AAA threats
Relatively simple to use
Man in the loop to impact
Accurate weapon with real-time hit assessment
Can hit moving targets
Basic concept of operations of GPS-aided munitions
FootStomp
- weapon is released and will autonomously guide to its target, regardless of weather
- guidance is accomplished via the coupling of an accurate GPS with an INS
- the GCU provide accurate guidance in both the GPS-aided INS modes of operation and INS only modes of operation
LGB disadvantages (FOOTSTOMP)
Shorter standoff ranges relative to boosted weapons
Required close-in designator support
LOS for weapon and designator must be accommodated
Weather/battlefield obscurants may impede guidance
Factors that affect GPS aided accuracy (FOOTSTOMP)
Navigation errors (Nav) - Position handoff and IMU velocities (INS only) or GPS
Guidance and Control errors (G&C)
- Weapon responsiveness to guidance commands
Target location errors (TLE)
- Accuracy of target coordinates
GPS aided munitions disadvantages (FOOTSTOMP)
No man-in-the-loop after release
GPS jamming may impede guidance
Cannot hit moving targets
Laser Guided Bomb Concept Of Operations
FootStomp
- Target is designated with a laser
- Weapon detects reflected laser energy and guides to target
- Seeker and designator must maintain Line of Sight
- Target must be capable of reflecting energy
- Atmospheric effects can attenuate energy
