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114 Cards in this Set
- Front
- Back
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What device causes the detonation of an explosive charge at the proper time after certain conditions are met?
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A Fuze
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What is the functioning time of a fuze?
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The time required for a fuze to detonate after impact or a preset time
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What is the distance along the trajectory that a bomb travels from the releasing aircraft in an unarmed condition?
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Safe air travel (SAT)
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What are the two basic classes of fuzes in reference to their primary operating principles?
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Mechanical and electrical
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What are the three special safety features incorporated into fuzes?
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Detonator safe, shear safe, and delay arming
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Normally, electrical fuzes are charged after which situation below occurs?
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The bomb has been released from the rack or shackle
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To help make carrier operations safe, a bomb that is accidentally released during
an aircraft's landing or takeoff will NOT normally have sufficient air travel, velocity, or time to fully arm the fuze because of what fuze feature? |
Delay arming
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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
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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? |
Armed– Green foil is pierced by the indicator pin
Safe– Green foil is intact |
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By what means can it be determined if a fuze is safe or armed?
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By external evidence of arming
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What is the purpose of the Mk 122 Mod 0 arming safety switch?
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To open a circuit and provide a RADHAZ shield to prevent electromagnetic radiation from entering the fuze circuits
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What FZU initiator is used with the FMU-143 (series) fuze?
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FZU-32
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What is the purpose of the FZU-32B/B initiator?
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To generate and supply power to arm the FMU-143 fuze
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What fuze is a self-powered, active, radio frequency, range-gated radar fuze capable of operating in a high electronic countermeasures (ECM) environment?
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FMU-140
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A conical fin assembly is used with what delivery mode?
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Unretarded and retarded
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What is the basic difference between the types of conical fins?
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Physical size
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What are the two delivery capabilities of the BSU-86 bomb fin?
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Retarded (high-drag) or Unretarded (low-drag) bomb delivery
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What type of tail fuze is used with laser-guided bombs?
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FMU-139
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What does the wing assembly add to the guided bomb unit?
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Necessary aerodynamic stability and lift for in-flight maneuvering
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A GBU-24B/B will penetrate how many feet of reinforced concrete?
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4 to 6 ft
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Joint Direct Attack Munitions (JDAMs) are general-purpose bombs modified with what type of guidance sets?
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GPS
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What component(s) is/are used to stabilize the cluster bomb after release from the aircraft?
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Tail Cone Assembly
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The spring-loaded fins 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?
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A fin release band assembly
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What is the main structure of the Mk 7 bomb dispenser?
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Cargo section
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What cluster bomb consists of an SUU-58/B dispenser and is loaded with BLU-91/B and BLU-92/B mines?
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CBU-78C/B
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What total number of BLU-91 mines is contained in a CBU-78 Gator?
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45
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What are the two general types of practice bombs?
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Subcaliber and full-scale
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What is the time or number of arming vane revolutions needed for the firing train
to align after a bomb is released? |
Arming time
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What means is used to initiate an electrical fuze?
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Electrical impulse
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What mechanical time fuze is used with dispenser weapons?
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Mk 339 Mod 1
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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
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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
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An FMU-143/B tail fuze is used with which weapon?
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GBU-24B/B
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What electronic bomb fuze is used in Mk 80/BLU 100 (series) general purpose
bombs—including laser-quided bombs? |
FMU-139
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What electronic bomb fuze is used for retarded delivery of the Mk 80/BLU 100
(series) bomb? |
FMU-139
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What type of bomb is used in most routine bombing operations?
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General-purpose (GP) bombs—currently the Mk 80/BLU 100 (series)
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Identification of BLU-110/111/117A/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
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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
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When shipping bombs, what type of pallet is used?
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Metal
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When shipping, what factor determines the number of bombs that are loaded on
each metal pallet? |
The size of the bombs
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Arming wire assemblies are used for what purpose?
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Maintain ordnance components in a safe condition until the actual release
of a weapon from an aircraft |
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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
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A conical fin assembly is attached to the aft end of a bomb by what means?
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Setscrews
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What bomb fin is used with the Mk-82/BLU-111 to provide a retarded (high-drag)
bomb delivery for the aircraft? |
BSU-86
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What general-purpose bomb, if any, is used with the BSU-85/B Air Inflatable
Retarder? |
Mk-83/BLU-110
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How do laser-guided bombs detect a target?
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Laser beam illumination
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What location is the wing assembly mounted on the Guided Bomb Units?
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The aft end of the bomb body
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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 |
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What modification kit is used to convert GP bombs into mines?
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Bomb/Mine Conversion Kit Mk 130 Mod 1
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What bomb body, if any, is used to make the Mk 63 mine?
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MK83/BLU110
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What is the purpose of the Mk 339 Mod 1 mechanical time fuze?
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Initiate the linear-shaped charges in the cargo section wall
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What are the components of the Mk 118 Mod 0 and Mod 1 antitank bombs?
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Mk 1 Mod 0 fuzing system
Shaped-charge warhead . Fixed stabilizing fins |
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What is the primary purpose of practice bombs?
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Provide safety when training new or inexperienced pilots and groundhandling
crews |
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What type of ammunition causes the most injuries to personnel?
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Practice bombs
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HERO is discussed in what manuals
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NAVSEA OP 3565/NAVAIR 16-1-529
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The history of rockets covers a span of how many centuries?
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Eight
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What initiating device ignites the propellant grain of a rocket?
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Igniter
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What component of a rocket contains the propellant, igniter, and nozzle?
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Motor
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The gases produced when rocket motor propellant burns create what type of
force? |
Thrust
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Rockets are propelled by what means?
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The expulsion of gases
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Which of the following rocket components is/are a part of the motor?
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Propellant and nozzle and fin assembly
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What type of HE-FRAG warhead is used with a 5.0-inch rocket?
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Mk 63 Mod 0
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What type of warhead combines the effectiveness of HE-FRAG and HEAT
warheads? |
AT/APERS
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What type of warhead is a compromise between the armor-piercing and
fragmentation designs? |
GP
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A 2.75-inch rocket assembly can be carried and launched from which of the
following launcher packages? |
7- or 19-round packages
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All 2.75-inch rockets may be shipped in which of the following configurations?
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Complete rounds in 7- or 19-tube launchers or in wooden boxes
Rocket motors in 7-tube launchers and fuze-warhead combinations in separate shipping containers Separate components in authorized shipping containers |
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Which NAVAIR publication provides authorized assemblies, safety precautions,
and restrictions for airborne rockets? |
11-75A-92
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All 5.0-inch rockets should be received through the supply system in which of the
following configurations? |
Rocket motors in a 4-round launcher
Separate components in separate shipping containers Fuzes and warheads in separate shipping containers |
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A rocket motor should NOT be used if it has been dropped more than what
prescribed number of feet? |
A rocket motor should NEVER be used if dropped
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When, if ever, should you attempt to remove the base fuze from a rocket
warhead? |
You should never attempt to remove the base fuze
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Acceleration and deceleration apply to rocket fuzes that use a gear timing device in conjunction with what principle?
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Setback principle
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A rocket misfire that later fires from delayed ignition is known by which of the following terms?
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Hangfire
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A situation in which a rocket does NOT fire when the firing circuit is energized is known by which of the following terms?
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Misfire
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The solid fuel used in a rocket motor is known by which of the following terms?
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Propellant grain
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What term applies to a safety feature designed into a fuze with a gear timing device?
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Setback
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Presently, all rocket motor tubes are made from what material?
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Aluminum
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With a Venturi-type nozzle design, the gas pressure inside a rocket motor
provides approximately what percentage of the force required to move the container forward? |
70%
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A complete round of service rocket ammunition is contained in which of the
following component/components? |
Motor, warhead, and fuze
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An internal burning, star perforation, double-base, solid propellant is contained in
which of the following rocket motors? |
2.75-inch and 5.0-inch
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To restrict or control burning, inhibitors are used on what areas of the propellant
grain? |
Aft end, forward end, and outer diametrical surface
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If inhibitors were NOT used on rocket motors that use propellant grain, what action would occur?
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An increased burning rate
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On a 2.75-inch rocket motor, where is the igniter located?
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Forward end of the motor
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Inhibitors cause the propellant grain to burn in which of the following directions?
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Center to outward and forward to aft
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What rocket component prevents an unstable burning of the propellant grain?
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Stabilizing rod
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What rocket component ensures that the propellant grain ignites simultaneously forward and aft?
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Stabilizing rod
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The igniter in a 5.0-inch rocket motor contains how many squibs?
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Two
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When NOT installed in a launcher, what device holds the spring-loaded fins of an Mk 71 rocket motor in the closed position?
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Fin retainer band
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Rocket warheads are classified in which of the following ways?
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Flare, flechette, and smoke
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Information pertaining to specific rocket components is contained in which of the following NAVAIR publications?
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11-75A-92
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When required, base fuzes are assembled in high-explosive warheads at which of the following locations?
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The factory
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HE-FRAG warheads are used against which of the following targets?
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Personnel
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A warhead designated WDU-4A/A is of (1) what type and (2) fits what diameter rocket?
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(1) Flechette (2) 2.75-inch
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The Mk 34 Mod 0 is what type of warhead?
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Smoke
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What are the two primary classifications of rocket fuzes?
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Nose and base
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An Mk 193 Mod 0 fuze is installed in what warhead?
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Mk 33 Mod 1
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A rocket fuze that functions after the rocket strikes the target with enough resistance to cause crushing or disarrangement of actuating parts is known as what type of fuze?
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An impact-firing fuze
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An impact-firing fuze is located in what part of a warhead?
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The nose only
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Which of the following fuzes contains a clock mechanism?
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Mk 193 Mod 0
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What type of rocket fuze is used in the base of a WDU-4A/A flechette warhead?
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An acceleration-deceleration fuze
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What type of rocket fuze has an electronics package in the forward end?
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A proximity fuze
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What 5.0-inch rocket motor has one motor for all launch speed applications?
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Mk 71
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Aircraft rocket launchers are classified in which of the following ways?
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2.75-inch or 5.0inch and reusable or nonreusable
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For detailed information on the LAU-61 and LAU-68 (series) rocket launchers, you should refer to which of the following NAVAIR publications?
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11-75A-92
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The LAU-10 series rocket launcher has which of the following type of suspension?
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A 14-inch and 30-inch suspension
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The frangible fairings on rocket launchers are made of what material?
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Impregnated molded fiber
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What component permits preflight selection of either ripple or single firing of rockets from an aircraft rocket launcher?
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A mode selector switch
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What component of a rocket launcher is used to prevent loaded rockets from being fired?
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A breaker switch
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When rocket launchers are loaded, the detent pin should be installed in the breaker switch at which of the following times?
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Before the launcher is loaded with rocket motors
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Rocket motors should be stowed in the same manner as which of the following powders or explosives?
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Smokeless powder
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When, if ever, should a loaded rocket launcher be electrically tested?
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A loaded rocket launcher should NEVER be tested
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A minimum distance, as indicated on the unit, must be maintained between a gas turbine exhaust path and the rocket assemblies upon which the exhaust impinges. In the absence of specific information on the unit, what minimum distance must be maintained?
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10 feet
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If for any reason you think a fuze is armed, which of the following procedures should you follow?
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Treat the fuze as an armed and sensitive fuze
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Ready-service stowage of assembled rockets is authorized for the 2.75-inch and 5.0-inch aircraft rockets according to which of the following publications?
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NAVSEA OP 4 and NAVSEA OP 5
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In an ammunition loading area, smoking should NOT be permitted within what prescribed number of feet?
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200 feet
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