Bombs and Bomb Fuses Flashcards
Describe a fusing system.
Means of initiating the detonation, dispersion or ignition of a bomb at a previously determined time or position. it incorporates devices intended to ensure reliable and effective operation of a bomb and is, from an EOD perspective, the most hazardous component of a UXO. Covers fuses and pistols.
Describe a Bomb Pistol
Contains no explosive elements and is used in conjunction with a separate detonator. Although a pistol is not a hazard when removed, a detonator (which is not to be removed if it has been fitted for greater than 14 days) remains in the pocket and must be prevented from movement id the UXO is to be moved.
Describe a bomb fuse.
Contains an explosive element, such as a detonator and a booster. The booster contains a significant amount of explosive from the safety perspective of an EOD operator. Bomb fuses that have been removed from a UXO remain a hazard and require care when handling, transporting or storing.
What are the bomb functioning actions?
Impact/short delay Airbust Influence Hydrostatic Long Delay Anti withdrawal Anti disturbance Modular/ Smart
What are the subcategories of impact fusing?
Direct action (shear wire, compression spring, diaphragm, heat of compression, electrical)
Indirect action (compression spring, plate, cocked striker, heat of compression)
Combination/Both
What are the airburst subcategories?
Mechanical time (clockwork) Mechanical Electrical Pyrotechinc Time Barometric Blast Pressure Proximity
What are the influence subcategories?
Radio (active) Radio (passive) Light Heat Acoustic Magnetism IR/Lasee
What are the subcategories of Long Delay?
Chemical
Material Creep
Electrical
Clockwork
What are the types of antiwithdrawal devices?
Clawed foot Knife Edges Offset Ball and groove Anti removal sleeve Electrical contact
What are the subcategories of anti disturbance devices?
Electrical
Mechanical
How are bomb fuses classified?
Position in Store
Method of arming
Functioming action
Where can bomb fuses be positioned?
Nose
Tail
Transverse
Multi
What are the methods of arming a bomb?
Electrical
Mechanical
Electromechanical
Combination
Name the components of a bomb.
Case/main body with filling plug Suspension lugs Tail assembly Main filling Fusing system
What can the main filling consist of?
HE including FAE
Chem/bio
Incendiary
What are the categorisations of bombs?
HE/ Frag Incendiary FAE Chem/Bio Practice
What are the tail fin attachments?
Non-retarded (slick, snakeye undeployed, ballute parachute undeployed).
Retarded (snakeye deployed, ballute paraxhute deployed.
Name 5 nose attachments and their purposes.
Kopfring - prevent excessive penetration on land and ricochet at sea.
Anti ricochet plates - as above.
Stabo - prevent bomb skipping during dive bombing.
Dinort rod - provide standoff to increase frag effect.
Arming vane
Describe the characteristics of British WW2 bombs.
Single Suspension lug
Drum shaped tail assembly
Tail assembly attached with clip or screw
Arming vane in tail assembly if assembled after 1939.
Describe the characteristics of German WW2 bombs.
Cruciform tail assembly
Single screw in suspension lugs (H or T lugs for larger bombs)
Tail bolted on or part of bomb construction
Characteristics of American WW2 bomb.
Box shaped tail assembly.
Double suspension lugs (may have one additional to be used by allies)
Tail assembly secured with a large nut
Characteristics of Soviet WW2 bomb.
May have design features of British, American or German bombs.
If tail assembly is welded on it is likely full of main filling.
Characteristics of Japanese WW2 bombs.
Single suspension lug (folds for Army)
Open fin cone tail assembly
