Mortar Study Guide
What is the minimum and maximum elevation of the 81mm mortar system?
0710-1510
When bore sighting a mortar system, what should the elevation be set on?
0800
What is the minimum range of the 120mm mortar system?
200m
What is the weight of the 81mm bipod?
22.5lbs
What is the weight of the 81mm baseplate?
29lbs
How many mortar position stages are there?
3
What is the weight of the 81mm mortar tube?
30.5lbs
What is the candlepower of the 60mm Illumination round?
300,000
What are the max ranges of the 60mm mortar system?
3490m (Conventional) 1340m (Handheld)
What is the kill radius of the 81mm mortar system?
35m-40m
How many different round types are there for the 120mm mortar system?
5
What is the Maximum range of the 81mm mortar system?
5608m or 5700m (New)
How many mils for each turn of the traversing wheel on the 120mm mortar system?
5mils
What are the minimum ranges of the 60mm mortar system?
70m-75m
What is the kill radius of the HE 120mm mortar round?
70m-75m
What is the maximum range of the 120mm mortar system?
7200m
What is the M303?
81mm insert of the 120mm mortar system
What is the minimum range of the 81mm mortar system?
85m
What is the M59?
Amber Pole Light (x1)
What is the M58?
Green Pole Light (x2)
What are the different types of adjust fire missions?
Grid, Polar, Shift
What are the different types of rounds for the 120mm mortar system?
HE, WP, RP, FRTR, Illumination
What are the types of mortar occupation?
Hasty, deliberate
What is the nomenclature of the 60mm mortar tube?
M225A1
What is the nomenclature of the 81mm mortar tube?
M253A1
What is the nomenclature of the 120mm mortar tube?
M298
What is the nomenclature of the 81mm baseplate?
M3A2
What is the nomenclature of the 81mm bore sight?
M45
What is the nomenclature of the bore sight used on the 120mm mortar system?
M45
What is the nomenclature of the sight used on the 120mm mortar system?
M67
What is the nomenclature of the multi-option fuze?
M734A1
What are the nomenclatures of the 60mm baseplates?
M7A1, M8
What is the nomenclature of the 120mm baseplate?
M9
What are the NATO color markings of HE rounds?
Olive drab, yellow markings
What are the NATO color markings of Illumination rounds?
White, black markings
What is the nomenclature of the 60mm bipod?
M170A1
What is the nomenclature of the 81mm bipod?
M177A1
What is the nomenclature of the 120mm bipod ground mounted?
M190
What is the candlepower of the 120mm Illumination round?
1,000,000
What is the weight of the 120mm mortar tube?
110lbs
What is the weight of the 60mm bipod?
12.85lbs
What is the weight of the 120mm baseplate?
136lbs
What is the weight of the 60mm mortar tube?
13lbs
What does the bore sight detect?
Error on the sight
When should you swab the tube?
Every 10 rounds or when FDC calls EOM (End of Mission)
What field manual covers mortars?
FM 3-22.90
What are the NATO color markings on the white phosphorus rounds?
Light green, black markings
What is the nomenclature of the aiming posts?
M14
What mortar equipment contains tritium?
Sight, pole lights, 60mm cannon handle, M2 Compass
Describe what a mortar system is.
Smooth bore, muzzle loaded, crew served, air cooled, high angle fire weapon
