WPN 251 Flashcards
What is the GBU-12 made up of ?
MK-82 bomb body
192lbs of explosives
What are the 2 GBU-12 weapon effect categories?
Blast and frag
Which GBU-12 weapon effect accounts for 20% of injuries
Blast
Number of possible fuses on GBU-12
2 fuses
FMU-81 (nose/tail)
M9O5
Thermal battery life of FMU-81 fuse GBU 12
55 seconds
If impact angle is greater than 35 degrees
Excess energy is available
Weapon will accelerate end game and increase accuracy
If impact angle is less than 35 degrees
Weapon loses energy
Maneuverability may be decreased
3 phases of flight after GBU-12 release
Ballistic
Transition
Terminal guidance
CCRP calculation for GBU release that assumes surface winds
20% wind model
Release modes for GBU-12
Manual and CCRP
Terminal guidance phase conditions
Impact angle > 35 degrees
Impact velocity > 607 ft/sec
Feature that explodes 1.3 meters above the ground
HOB or air burst
How many seconds of lasing does the GBU-12 need?
8 seconds (10 in KU)
GBU 12 danger close
275 m
Components of GBU 12
Computer control group
Airfoil group
Warhead