Verified Answers
4.2 - State the purpose of thermal protection. - ANSWER -To greatly
increase the "cook-off time."
4.2 - State the distance between the lugs on a MK 83 bomb body. -
ANSWER -14 inches apart.
4.2 - The BLU-109A/B has the penetration capability of going through
how many feet of reinforced concrete? - ANSWER -4 to 6 feet
4.2 - What type of penetrator is the BLU-116A/B designated as? -
ANSWER -Advanced Unitary Penetrator (AUP)
4.2 - What type of targets are General Purpose Bombs used against? -
ANSWER -Enemy targets. (Installations, Armament, and personnel, and
tactically to provide direct support of our land, sea, and air forces
engaged in offensive or defensive operations.
4.2 - What type of explosive filler is used with the MK 80 series bombs
and what type is used with the BLU-100 series? - ANSWER -MK-80:
H-6
BLU-100 series: PBXN-109 (insensitive explosive filler)
4.2 - What color are the explosive-loaded BLU-100 series thermally
protected bombs? - ANSWER -Olive drab or grey in color.
4.3 - What is the definition of arming time? - ANSWER -The amount
of time or revolutions needed for the firing train to be aligned after the
bomb is released, or from time of release until the bomb is fully armed.
, Also known as Safe Separation Time (SST)
4.3 - What advantages do electrical fuses have as opposed to
mechanical fuses? - ANSWER -Depending on the delivery mode
(retarded/non-retarded) automatically selects the arming time.
Functioning times are in-flight selectable by the pilot.
Gives the bomb on aircraft capability when used with a proximity
sensing device.
4.3 - What should you do if the lanyard is removed from the MK 122
arming safety switch? - ANSWER -Do NOT attempt to reinstall the
lanyard; replace the entire switching unit.
4.3 - How does the DSU-33 proximity sensor receive its thermal battery
initiation signal? - ANSWER -From the aircraft through the MK 122
arming safety switch.
4.3 - What is used with the ogive nose plug to provide a solid structure
to the bomb? - ANSWER -A support cup.
4.4 - List the four major components of a GBU? - ANSWER -1)
Computer Control Group (CCG)
2) Airfoil Group (AFG)
3) Fuse
4) Warhead (bomb body)
4.4 - What items are contained in an Airfoil Group (AFG)? - ANSWER -1) Wing Assembly
2) Forward Adapter Assembly
3) Guidance fins
4) Hardware required for assembly
4.4 - What warhead series does the GBU system utilize? - ANSWER
MK-80/BLU-100
4.4 - Why do conical fins have an access door? - ANSWER -Quick
attach mechanism with a nyloc inserted nut
4.4 - State the mode of delivery when using the conical fin. - ANSWER -Non-Retarded.