A-1-1-31-3 IHE Flashcards
What should never be done with Insensitive High Explosives (IHE) munitions during disposal?
Do not intermix non-Insensitive High Explosives (IHE) munitions and IHE in the same disposal shot.
What is the purpose of this document?
To bridge the gap between traditional demolition techniques used on standard High Explosive (HE) and those for disposing of Insensitive High Explosives (IHE).
Why do some traditional demolition techniques become obsolete when used against IHE?
The reduced sensitivity of some IHE filled munitions causes undesired reactions when traditional techniques are applied.
What is the critical factor for initiating larger critical diameters of IHE?
The counter charge must provide the required initiation pressure across the entire critical diameter for the required duration.
What is a recommended technique for disposing of IHE?
Pack the Fuze well when available to function the munition as designed.
What is one method to improve the output of a demolition charge?
Modification of the standard spherical detonation wave.
What are two techniques used to modify the standard detonation wave?
- Colliding detonation waves
- Wave shaping
How do unmodified blast waves travel?
They travel at the velocity of detonation for that explosive, radially out from the point of initiation.
What effect does the collision of blast waves have?
It magnifies the detonation velocity by up to 3 times while flattening and strengthening the output wave.
What must be ensured for simultaneous initiation?
Use only identical equal lengths of sensitized detonating cord or shock tube.
True or False: Military electric blasting caps can be used in the simultaneous initiation technique.
False
What is wave shaping?
A method for modifying blast waves by diverting their path using an inert material.
What is the role of a wave shaper in wave shaping?
The blast waves are forced around the wave shaper and collide with themselves, resulting in a modified and magnified wave.
What is an example of a commercial wave shaper?
Cylindrical Dynamic Access Tool (CDAT)
Fill in the blank: The _______ can be used to fashion a wave shaped charge using M112 blocks.
M112 blocks
What can impede the blast wave from a counter-charge?
- Air
- Steel
- Munitions components
- Other materials
What factors influence the burning efficiency of IHEs?
- Type of IHE
- Fuzes present
- Cracks in the main charge
- Environmental conditions
What is the outcome of burning IHEs?
Results may vary from a type I to a type VI reaction.
