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L-16 81mm Mortar
Direct Fire Procedure
Required Equipment

L-16 81 Mortar (deployed)
Mortar rounds
Ear plugs
81mm Range Table
Vector 21
MicroDAGR

Procedure

2. Configure your MicroDAGR so that degrees are shown in Mils

3. Focus on the target with your Vector 21

4. Press and hold TAB and R simultaneously until the circle appears in the center

5. Release TAB and R, The range to the target will be displayed on the right. Note this value down as your “range actual”. You now also have
the bearing in mils stored in your MicroDAGR, it is shown next to the connect symbol in the grid view. (In our example 0739, shown on the
MicroDAGR in the next but one screenshot).

6. Open the 81mm Range Table (Self Interaction → Equipment). Choose the smallest possible charge to reach the target. In this example it is
charge 1.

7. Note down the following values:
-

The next lower range entry to the actual target range (in this case it is 450). This is your “range short” value.
The next higher range entry to the actual target range (in this case 500). This is your “range long” value.
Also note down both corresponding elevation values, they are the “elevation short” and “elevation long” values, respectively.
Take note of the Time of Flight so you will know when to expect an impact after firing the round.

8. Use the following three equations to find the corrected vertical elevation for your shot:

elvation short −elevationlong
=r 1
100
r 1⋅(range actual−range short )=r 2
elevation short−r 2=elevation corrected
In our example this translates to:

1484−1471
=0.13
100
0.13⋅(467−450)=2.21

1484−2.21=1481.79
If you find it easier, you can combine the three equations to get the corrected elevation in one step. This is not recommended as it is more
prune to error. It can be useful for a calculator script, though:

range short −

elevation short −elevation long
⋅(range actual−range short )=elevation corrected
100

9. Make sure the Mortar is loaded. Now enter the weapon and turn it horizontally so it matches the bearing you determined in step 5. It is
shown on your MicroDAGR next to the connect symbol, in this example it is 0739. Now use Page Up and Page Down to adjust the vertical axis to
the corrected elevation. You can use Shift+PgUp/Dn for fine-grained control. In our example we adjust to 1481.

10. When cleared to fire, pull the trigger. BE CAREFUL TO NOT MOVE THE MOUSE WHILE DOING THIS.