Bombs, Fuzes, And Associated Components Flashcards
What means is used to initiate an electrical fuze
Electrical impulse
What mechanical time fuze is used with dispenser weapons
MK 339 Mod 1
The primary and option functioning delay of the MK 339 fuze is set at the factory. What means can be used to change the settings for tactical requirements
By adjusting the primary and option time-setting dials
How can you tell if the MK 339 fuze has shifted from the primary to the option delay
By checking the time setting observation window of the fuze
An FMU-143/B tail fuze is used with which weapon
GBU-24B/B
What electronic bomb fuze is used in MK 80/BLU 100(series) general purpose —–including laser - guided bombs
FMU-139
What electronic bomb fuze is used for retarded delivery of the MK 80/BLU 100(series) bomb
FMU-139
What type of bomb is used in most routine bombing operations
General-purpose(GP) bombs —– currently the MK 80/BLUE 100(series)
Identification of BLU-110/111/116A/B bombs loaded with PBXN -109 can be made by the stencil on the bomb body(front and rear) and by what other means
Three yellow bands on the nose
A bomb body is shipped with a plastic plug installed in the nose and tail fuze wells to prevent what occurrence
Damage to the internal threads and moisture from entering the fuze wells
When shipping bombs, what type of pallet is used
Metal
When shipping , what factor determines the number of bombs that are loaded on each metal pallet
The size of the bomb
Arming wire assemblies are used for what purpose
Maintain ordnance components in a safe condition until the actual release of a weapon from an aircraft
Premature or accidental withdrawal of an arming wire from a component is prevented by the installation of which of the following devices
Dexter safety clips
A conical fin assembly is attached to the aft end of a bomb by what means
Setscrews
What bomb fin is used with the MK-82/BLU-111 to provide a retarded (high-drag) bomb deliver for the aircraft
BSU-86
What general-purpose bomb , if any, is used with the BSU-85/B air inflatable retarder
MK-83/BLU-110
How do laser-guided bombs detect a target
Laser beam illumination
What location is the wing assembly mounted on the guided bomb units
The aft end of the bomb body
The computer-control group (CCG) of a laser guidance kit is used for what purpose
To detect laser-illuminated targets and to provide an attachment point for the guidance fins
What modification kit is used to convert GP bombs into mines
Bomb/mine conversion kit MK 130 Mod 1
What bomb body , if any, is used to make the MK 63 mine
MK83/BLU110
What is the purpose of the MK 339 Mod 1 technical time fuze
Initiate the linear-shaped charges in the cargo section wall
What are the components of the MK 118 Mod 0 and Mod 1 antitank bombs
All answers are correct
A. MK 1 Mod 0 fuzing system
B. Shaped-charged warhead
C. Fixed stabilizing fins
What is the primary purpose of practice bombs
Provide safety when training new or inexperienced pilots and ground handling crews
What type of ammunition causes the most injuries to personnel
Practice bombs
What is the time or number of arming vane revolutions needed for the firing train to align after a bomb is released
Arming
bomb detonation is controlled by the action of a what
fuze
what is any device that causes the detonation of an explosive charge at the proper time after certain conditions are met
fuze
what is the amount of time or vane 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 defined as
arming time
a delay occurs when the functioning time of a fuze is longer than what time frame
.0005 second
the time required for a fuze to detonate after impact , or a preset time is known as what
functioning time
a fuze is said to be instantaneous when the functioning time is what time frame or less
.0003 seconds
what is the action called that causes a fuze to detonate before impact when any substantial object is detected at a predetermined distance from the fuze
proximity (VT)
fuzes are normally divided into what two general classes
mechanical and electrical
the most important fuze safety features are detonator-safe , shear-safe , and what else
delay arming
the functional delays for both the primary and option modes of the MK 339 Mod 1 fuze can be adjusted from 1.2 to how many seconds
100
the cases of general purpose (GP) bombs are aerodynamically designed , relatively light , and approximately what percent of their weight is made of explosives
45%
thermally protected bombs are identified by two bands of what color
yellow
suspension lugs are used to attach the weapon to the aircraft bomb racks and are spaced how many inches apart , depending on size of the bomb
14 or 30 inches
what are two basic nose plugs used in GP bombs
solid and ogive
maintaining ordnance components in a safe condition until actual release of the bomb from the aircraft is the primary function of what
arming wire assemblies
what provides stability to a GP bomb causing the bomb to fall in a smooth , definite curve to the target
fin assemblies
what type of fin is used for the nonretard mode of delivery
conical
the typical BSU-33/conical fin assembly is steel , conical in shape , and has how many fins to provide stability
4
how many modes of delivery are available for the fin assembly
three
what is the most frequently used mode of fin assembly delivery
in flight selection (pilot option)
the BLU-108A/B must not be missing more than 20 square inches of thermal coating in a single area or more than how many square inches total
40
the MK 62 mine is a how many-lb weapon
500
what are weapons that dispense smaller weapons over a large area
cluster bomb units (CBUs)
what section of the MK 7 bomb dispenser is a main structure of the weapon and contains the bomb/bomblets
cargo
when the MK 339 Mod 1 primary fuze arming wire is pulled , the fuze will function how many seconds after the arming wire has been extracted
1.2 seconds
what term means that a practice bomb is much smaller in size and weight than the service bomb it simulates
subcaliber
there are two types of subcaliber practice bombs-the MK 76 Mod 5 and what else
BDU-48/B
MK 80 (series) inert GP bombs are painted what color
blue
bombs are shipped on what type of pallets
metal
