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Flashcards in M2 Aiming Circle Deck (7)
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1

What is the declination constant used at Bragg

6250 mils

2

List the M2
Azimuth rotation:
Max elevation:
Max depression:
Magnification:
Field of view:

6400mils
800mils
400mils
4x
10*

3

What are the set up distances
High tension power line:
Electronic equipment:
Railroad tracks:
Tanks and trucks:
Vehicles:
Barbed wire:
Mortars:
Helmets:

150
150
75
75
50
30
25
10
(Meters)

4

Define declination constant:

Clockwise angle between grid north and magnetic north

5

What is the declination station

We declinate to determine declination constant of instruments and to correct for local attractions, annual variations and instrument errors

6

How is the remainder calculated

Subtract mounting azimuth from declination constant.

6250-4200=2050

If declination constant is smaller than mounting azimuth, add 6400.
Mounting azimuth = 0150
Declination constant =6250
6550-4200=2350

7

4 reasons to declinate

1- when aiming circle moved 25mi or more
2- after electrical storm or severe shock to equipment
3- every 30 days
4- when initially received and when returning to maintenance