Motars, Artillery Flashcards
M244 60MM motars organization
3 tubes per rifle company
3 Marines per tube
organic to company
one section leader=10 Marines
M244 60MM characteristics
weight 46.5lbs ammo weight 4.5lbs ECR 30m Min Range 70m Max Range 3500m
M244 60MM rates of fire
Max 4min 30rds/min
Sust indefinitely 20rds/min
M244 60MM Ammunition
High Explosive HE
White Phosphorus WP smoke
Illumination 600m 45secs
IR Illumination 600m 45secs
Motar Fuzes
Point dentonating Delay= 0.5 delay Near Surface Burst 0-3ft Proximity 3-13 Time
M252 81MM motar Organization
1 PLT per Infantry BN 8 tubes per PLT 4 tubes per section 6 Marines per tube 69 Marines Total
M252 81MM Characteristics
Weight 89lbs Ammo weight 9lbs ECR 35m Min Range 83m Max Range 5700m
M252 81MM Rates of fire
Max 2 mins 30rds/min
Sust indefinitely 15rds/min
M252 81MM Ammunition
HE WP RP-still burns red, longer, and liquid base Illumintation 1000m 60seconds IR Illumintatin 1000m 60sec
Point Detonating Fuze
functions on impact
can be used with HE and WP projectiles
Is commonly referred to as “quick” and PD
Delay Fuze
Functins .05 sec after impact can be used with HE projectiles HE delay is effective against -earth and log fortifications -some masonry and concrete targets -personnel in light frame structures -lightly covered emplacements -dense woods Not effective against heavy -armor, masonry, concret
Proximity/Near Surface Burst (NSB) Fuze
is radio activated
functions when it receives the reflection of a self- tranmitted radio signal
Has height of burst 0-3ft NSB or 3-13 Proximity
HE Prox/NSB is useful in situations where an airburst is desired without the need to adjust the height of burst
Light foliage has little effect, but heavy foliage will cause detonation
Is particularly effective against:
-Personnel in any disposition without overhead cover
-Lightly skinned vehicles
Time Fuze
Used for illumination and WP
HE/PD
Blast & Frag
Personnel/Light skinned Vehicles
HE/PROX/NSB
Blast & Frag
Personnel in open- no overhead cover