81mm Mortar, M252A1 Flashcards
What is the military designation for the 81mm mortar system?
M252A1
Name of the 81mm cannon ?
M253 81mm Cannon
Name of the mortar mount? (Bipod)
M177A1 Mortar Mount
What is the name of the baseplate?
M3A2 Baseplate
Name of the sight unit?
M67 Sight Unit
What is the name of the bore-sight?
M45 Boresight
Min and Max elevation?
800mils-1511mils
One turn of the elevation wheel is equal to?
10mils
Total mils on the deflection handwheel?
200 mils total
100mils on each side of the center
Mils of deflection per turn of the traversing handwheel
7mils or 10mils
Max and min range
Max: 5608m
Min: 83m
Rates of fire for m362 seres, m821, m889, m819 and m853 cartridges?
Sustained: 15rds/min
Maximum: 30rds/min for 2 minutes
Mils presets for boresighting?
0 mils deflection
800 mils elevation.
What are the three cartridge types for the M252A1?
HE
ILLUM
Phosphorus/Smoke
What is the name of the aiming stakes?
M14
What is the name of the night lights for the m14 stakes?
M65 night lights
M816 Cartridge
Standard: A
Type: ILLUM
Max range: 5100 meters
Fuze: M772 MTSQ
M819 Cartridge
Standard: A
Type: Smoke, RP
Max Range: 4875m
Fuze: M772 MTSQ
M821/821A1 Cartride
Standard: A
Type: HE
Max Range: 5608m
Fuze: M734 Multioption
M853 Cartridge
Standard: A
Type: ILLUM(burn time50-60sec)
Max Range: 5100m
Fuze: M772 MTSQ, M768 Time
M879 Cartridge
Standard: A
Type: FRTC
Max Range: 5600m
Fuze: M751 PD
M880 Cartridge
Standard: A
Type: SRTC
Max Range: 458m
Fuze: M775 PD(Practice)
M889/889A1 Cartridge
Standard: A
Type: HE
Max Range: 5608m
Fuze: M935 PD
How often should you swab your bore?
Every 10 rounds or at the end of each firing mission.
