Pistol And Fuzes Flashcards
Where can pistols be mounted?
Nose and tail only
What are the characteristics of a pistol?
No explosive content
Used with a separated det
No hazard once removed
Explosive train remains in the weapon
DETS ARE NOT REMOVED AFTER 14 DAYS
What are the characteristics of a fuze?
Primary explosive charge
Removal will break the explosive train
Fuzes are still dangerous once removed
Where are the explosives located in a fuze?
Explosive contents in the magazine
Explosive motors (squibs) in mechanism
If it’s made from brass is it a pistol or fuze?
Pistol
What are the 3 classifications of pistol and fuzes?
Position in store
Method of arming
Functioning action
The 4 different position in store?
Nose only
Tail only
Transverse only
Multi position
What are the four methods of arming a pistol or fuse?
Mechanical
Electrical
Electromechanical
Combination
What is meant by electromechanical arming?
An electrical import allows a mechanical action.
Electrical input which may operate an actuator, solenoid or gas piston which unlocks an arming vain allowing it to turn.
What is combination arming and what is its purpose?
The use of more than one arming action to increase safety.
One action alone will not arm the pistol or fuse.
What are the four most common methods of achieving a long delay action?
Chemical
Material creep
Clockwork
Electrical
In which position would you expect to find an influence fuse fitted to a bomb?
At the nose
What type of fuze directly targets the BDO?
Protective fusing
What is the purpose of long delay fusing?
To be a nuisance to tie up the enemy forces and delays recovery.
What functioning actions can smart fuses have?
Influence
Impact
Long delay
Anti disturbance
What does CS stand for?
Cock striker
What are the 8 types of functioning actions?
Airburst Influence Impact Long delay Anti disturbance Protective Modular (smart) Hydrostatic
What are the 6 types of airbust?
Mechanical time (clockwork) Mechanical Barometric Pyrotechnic timer Electrical Blast pressure
What are the types of influence?
Radio (most common) Light Heat Sound Magnetic Lazer
Impact - What are the three sub-groups?
Direct - nose only
Indirect - tail only
Combination/all-ways acting
What are commonly fitted alongside long delay fuses?
Anti disturbance
What are the 4 types of anti-disturbance?
Electrical
Electrical (Mercury tilt)
Vibration/tremor switch
Electrical anti removal
Mechanical
Cocked striker
How would you identify hydrostatic fuse?
Tail fuse large substantial construction
Ports visible for water ingress
What are the four methods of arming mechanically?
Rotation of arming vane
T-bar/spindle
Ejection or withdraw of an arming pin
Removal of safety cap
How long is a long delay fuse?
Minimum 30 minutes
How long is impact short delay fuse?
Up to 35 seconds
What are the key identification features of a long delay fuse?
Hidden graduated scale Weakened portion A stub of arming fork The smell of acetone Chemical corrosion
Where is the long delay fuse fitted to the bomb?
It is fitted at the tail to protect it upon impact
What fuse will have anti-withdrawal devices?
Long delay
What are the four types of anti-withdrawal devices?
Weakened portion
Clawed foot
Knife edges
Offset annular groove and ball
