M2 Aiming Circle

Question 1

Verbiage for laying in the mortars with the M2

Answer 1

ACO: “Section, aiming point this instrument”
G: “Aiming point identified”
G: “ Deflection - - - -“
G: “Ready for recheck”
ACO: “Deflection - - - -“
G: “ 1 mil difference”
ACO: “ refer your deflection to 2800 and lay out stakes”.

Question 2

Distances to be kept from interfering objects

Answer 2

High tension power lines and electronic equipment: 150m

Railroad tracks, tanks and trucks: 75m

Vehicles: 50m

Barbed wire: 30m

Mortars and telegraph wire: 25m

Helmets and so forth: 10m

Question 3

Criteria for choosing a declination station

Answer 3

The point chosen for the declination station must have a view of at least two distant, well defined points with a well known grid azimuth.

Question 4

Use of the aiming circle

Answer 4

That aiming circle is used to measure as a math and elevation angles with respect to a preselected baseline

Question 5

Nomenclature for the tripod

Answer 5

M24 Tripod

Question 6

Field of view

Answer 6

10°

Question 7

Magnification

Answer 7

x 4 power