Artillery OtherCourse Flashcards
ARTILLERY
What are the 6 ammo projectiles
m107 HE M795 HE XM982 M825A1 smoke M485A2 smoke M1122 Prac
PROJECTILE 155MM HE M795
Why is it better than the 107?
Better range and lethality
PROJECTILE 155MM HE M795
Main explosive fill?
TNT 10.8kg
PROJECTILE 155MM HE M795
What is it designed to do
Produce blast and frag
36kg high fragmentation body
PROJECTILE 155MM HE M795
what is the gilded metal driving band used for?
Impart spin
centre projectile
prevent falling back into breech
PROJECTILE 155MM HE M795
What is removed when using the PGK (precision guidance kit)
Sup charge
Fuze ET M762A1 and M767A1
What two modes can the fuze be set to
ET and PD
Fuze ET M762A1 and M767A1
when does PD arm and ET arm?
PD 0.45 seconds after leaving the barrel
ET setting delay of 0.5 to 199.9 seconds
Fuze ET M762A1 and M767A1
What are the electric components powered by?
Lithium thionyl chloride battery, battery life of 15 days once activated
Fuze ET M762A1 and M767A1
what stimuli are needed to arm the fuze
set back of 800g no arm, 1000g all arm
900 RPS no arm, 2100 RPS all arm
Fuze ET M762A1 and M767A1
What is the booster charge composition?
PBXN-5 type 1, 30g
Fuze ET M762A1 and M767A1
What are the three assemblies?
Ogive assembly
fuze housing assembly
end cap assembly
Fuze ET M762A1 and M767A1
three parts WITHIN the fuze housing assembly
Liquid crystal display
Printed circuit board
Power supply module
Fuze ET M762A1 and M767A1
What is EPIAFS
Electronic portable inductive artillery fuze setter
Fuze ET M762A1 and M767A1
What does set back force and centrifugal force have to do with the arming
Setback: Disengage setback lock from slider
Centrifugal: disengages spin lock from slider upon muzzle exit
FUZE PD M739 and M739A1
what is the difference between the three varients?
change in booster composition
FUZE PD M739 and M739A1
what are the 2 requirements needed to happen superquick and delay?
Superquick: 1050 rpm no arm 1800 all arm
Delay: No arm 1075 all arm 2025
FUZE PD M739 and M739A1
Booster explosive compisition?
PBXN-5 (HMX 95% and 5% binder)
FUZE PD M739 and M739A1
What are the five sub assemblies?
cross bar and holder firing pin and detonator setting sleeve Impact delay module Safe and arming
PROJECTILE 155MM ILLUM M485A2
Burn time and lumens?
120 Seconds with 1,000,000 candela
PROJECTILE 155MM ILLUM M485A2
how long does the pyro delay take to burn?
8 Seconds
PROJ 155MM SMOKE WHITE PHOSPHORUS M825A1
What is the only fuze authorised to be used with WP?
ET M762A1
PROJ 155MM SMOKE WHITE PHOSPHORUS M825A1
how many WP Wedges?
116, 29 in each quadrant
PROJ 155MM SMOKE WHITE PHOSPHORUS M825A1
How long does it take to establish the smoke screen? width? duration?
45 seconds, 125-250m and lasts for 5-10 minutes
M232A1 MODULAR ARTILLERY CHARGE SYSTEM(MACS)
what type of propellant?
Triple base
M232A1 MODULAR ARTILLERY CHARGE SYSTEM(MACS)
How many increments can be packed into a container?
5
M232A1 MODULAR ARTILLERY CHARGE SYSTEM(MACS)
What happens if howitzer is fired at charge 5 ?
May cause excessive pressures
can result in firing mechanism components shearing and separating from gun