Flashcards in Urban Breaching Deck (11):
What are the three types of breeching techniques?
Mechanical, Ballistic, Explosive
Define the positive and negative blast pressure phases?
POSITIVE: Leading edge of the blast. NEGATIVE: vacum created from the blast.
Explain reflective blast pressure?
When the blast wave hits a wall it reflects off of it and increases speed/srtength
How do you calculate for NEW?
QTY x RE x PKG WT = NEW
What are the EXPLOSIVE EFFECTS?
Blast, Fragmentation, Thermal effect, Chemical poisoning
What are the BLAST PRESSURE effects?
Dynamic, Incidental, Residual, Reflective
How do you convert grains to lbs?
grains / 7000
How do you convert grams to grains?
grams x 15.4 = grains
How many grains of exlosive are in a M11 cap? What is the RE?
19 grains. RE 1.60
What is the K factor for non shielded?
18 (constant for 4psi)