Chapter 1 Flashcards
What is the function time of a fuse?
The time required for a fuze to detonate after impact or a preset time
What is the distance along trajectory that a bomb travels from the releasing aircraft in an unarmed condition?
SAT (safe air travel)
What are two basic classes of fuzes in reference to their primary operating principles?
Mechanical and electrical
What are the three special safety features incorporated into fuzes?
Detonator safe, shear safe, and delay arming
Normally, electrical fuzes are charged after which situation below occurs?
The bomb has been electrically disconnected from the aircraft
To help make carrier operations safe, a bomb that is accidentally released during an aircraft landing or take off will NOT normally have sufficient air travel, velocity, or time to fully arm the fuze because of what fuze feature?
Delay arming
For information on the fuzes currently used by the Navy, you should refer to which of the following NAVAIR publications?
11-1F-2 and 11-5A-17
What will you see in the observation window of an Mk 339 fuze when the fuze is in a safe condition and the fuze is in an armed condition?
Safe - green foil is intact
Armed- green foil is pierced by the indicator pin
By what means can it be determined if a fuze safe or armed?
By external evidence of arming
What is the purpose of the Mk-122 mod 0 arming safety switch?
To open a circuit and provide a RADHAZ shield to prevent electromagnetic radiation from entering the fuze circuits
What device causes the detonation of an explosive charge at the proper time after certain conditions are met?
A fuze
What FZU initiators used with the FMU-143 (series) fuze?
FZU-32
What is the purpose of the FZU-32B/B initiator?
To generate and supply power to arm the the FMU-144 fuze
What fuze is a self-powered, active, radio frequency, range-gated radar fuze capable of operating in a high electronic countermeasures (ECM) environment?
FMU-140
A conical fin assembly is used with what delivery mode?
Unretarded only
What is the basic difference between the types of conical fins?
Physical size
What are the two delivery capabilities of the BSU-86 bomb fin?
Retarded (high drag) or unretarded (low-drag) bomb delivery
What type of tail fuze is used with laser-guided bombs?
FMU-139
What does the wing assembly add to the guided bomb unit?
Necessary aerodynamic stability and lift for in-flight maneuvering
A GBU-24B/B will penetrate how many feet of reinforced concrete?
4-6 feet
Joint direct attack munitions (JDAMs) are general purpose bombs modified with what type of guidance sets?
GPS
What component(s) is/are used to stabilize the cluster bomb after release from the aircraft?
Tail cone assembly
The spring landed find attached to the tail cone assembly of an MK-7 bomb dispenser are secured in the closed position by which of the following retaining devices?
A fin release band assembly
What is the main structure of the Mk-7 bomb dispenser?
Cargo section
What cluster bomb consists of an SUU-58/B dispenser and is loaded with BLU-91/B and BLU-92/B mines?
CBU-78C/B
What total number of BLU-91 mines is contained in a CBU-78 Gator?
45
What are the two general types of practice bombs?
Subcaliber and full-scale
