1. SLIDE 1
ADJUST INDIRECT FIRE 1

2. ELEMENTS OF THE CALL FOR FIRE
SLIDE 2
ELEMENTS OF THE CALL FOR FIRE
1. OBSERVER IDENTIFICATION
2. WARNING ORDER
3. TARGET LOCATION
4. TARGET DESCRIPTION
5. METHOD OF ENGAGEMENT
6. METHOD OF FIRE AND
CONTROL 2

3. THE THREE TRANSMISSIONS
SLIDE 3
THE THREE TRANSMISSIONS
1. OBSERVER IDENTIFICATION
WARNING ORDER
2. TARGET LOCATION
3. DESCRIPTION OF TARGET,
METHOD OF ENGAGEMENT,
AND METHOD OF FIRE AND
CONTROL 3

4. EXAMPLE OF A CALL FOR FIRE
SLIDE 4
EXAMPLE OF A CALL FOR FIRE
1. A57 THIS IS A71,ADJUST FIRE, OVER
2. GRID, AJ396701, DIR 2400, OVER
3. TANK IN OPEN, OVER 4

5. TARGET LOCATION I The location will be given in a six or eight
SLIDE 5
TARGET LOCATION I
The location will be
given in a six or eight
digit grid including the
Grid Zone Identifier.
Also include a direction
from you to the target in
mils, degrees or a
cardinal direction.
Example of directions
2400 mils
170 degrees
Southwest
Mils is always assumed 5

6. TARGET LOCATION II A target location can also be given as a
SLIDE 6
TARGET LOCATION II
A target location can also be given as a
polar location.
That is done by given a direction and
distance to the target from your location
Example:
DIRECTION 175 DEGREES, DISTANCE 2400, OVER 6

7. TARGET DESCRIPTION 1. What the target is ( troops, equipment, trucks).
SLIDE 7
TARGET DESCRIPTION
1. What the target is ( troops, equipment, trucks).
2. What the target is doing (digging in).
3. The number of elements in the target
(squad, platoon, three trucks).
4. Degree of protection (in open, in foxhole).
5. The target size and shape if significant. 7

8. METHOD OF ENGAGEMENT I The method of engagement is used by the trained
SLIDE 8
METHOD OF ENGAGEMENT I
The method of engagement is used by the trained
observer to let FDC know how he wants to
engage the target.
For the purpose of this class, this area will not be
covered in great detail. 8

9. METHOD OF ENGAGEMENT II
SLIDE 9
METHOD OF ENGAGEMENT II
If the target is within 600 meters of your location
or the location of friendly troops, you will include
DANGER CLOSE in your call for fire
EXAMPLE:
TANK IN THE OPEN, DANGER CLOSE, OVER
600 METERS 9

10. METHOD OF FIRE AND CONTROL
SLIDE 10
METHOD OF FIRE AND CONTROL
The method of fire and control is used by the trained
observer to let FDC know how he wants to engage
the target.
For the purpose of this class, this area will not be
covered. 10

11. SLIDE 11
CORRECTIONS OF ERRORS
If the observer realizes that he has made an error in
his transmission or that FDC has made an error in the read
back, he announces CORRECTION and transmits the
correct data.
EXAMPLE
The observer transmitted LEFT 200, ADD 400, OVER.
He then realizes that he should have sent DROP 400.
To correct this element, he sends CORRECTION
LEFT 200, DROP 400, OVER. The observer must read
back the entire subelement. 11

12. Situation 1 You have 2 tanks in the tree line at grid AJ560812
SLIDE 12
Situation 1
You have 2 tanks in the tree line at grid AJ560812
Direction to the tanks is 155 degrees at a distance
of 2000 meters. Your call sign is H99 and FDC is B39. Formulate your call for fire.
B39 THIS IS H99, ADJUST FIRE, OVER.
GRID AJ560812, OVER.
DIRECTION 155 DEGREES.
2 TANKS IN TREE LINE,OVER. 12

13. Situation 2 You have a squad of infantry soldiers moving on
SLIDE 13
You have a squad of infantry soldiers moving on
your position at grid AK They are
Northwest from your OP at about 500 meters.
You are N24 and FDC is R81. Formulate your
call for fire.
R81 THIS IS N24, ADJUST FIRE, OVER.
GRID AK307998, DIRECTION NW, OVER.
INFANTRY SQUAD IN THE OPEN,
DANGER CLOSE, OVER. 13

14. Situation 3 You see a company assembly area in a valley.
SLIDE 14
Situation 3
You see a company assembly area in a valley.
The distance to the target 3000 meters at a direction
of 1730 mils. Your call sign G81 and FDC is P66.
Formulate your call for fire.
P66 THIS IS G81, ADJUST FIRE, OVER.
DIR 1730, DIS 3000, OVER.
COMPANY ASSEMBLY AREA IN THE OPEN, OVER. 14

15. Message To Observer After FDC receives the call
SLIDE 15
Message To Observer
After FDC receives the call
for fire, it determines how
the target will be attacked.
The decision is announced
to the observer in the
form of a message to
observer or MTO.
The MTO consists of 4
items:
1. Units to fire
2. Changes to the call for fire
3. Number of rounds
4. Target number 15

16. EXAMPLE OF AN MTO The battalion call sign is A8T36
SLIDE 16
EXAMPLE OF AN MTO
The battalion call sign is A8T36
Battery A call sign is R6G36
No changes to the call for fire are made.
FDC wants to shot 4 rounds per tube and
wants to shot VT (Variable Time).
The MTO would be:
T, G, VT IN EFFECT, 4 ROUNDS, OVER.
The observer reads back the MTO:
T, G, VT IN EFFECT, 4 ROUNDS, OUT. 16

17. ADJUSTING PHASE KEY ELEMENTS 1. The observer-target (OT) Factor
SLIDE 17
ADJUSTING PHASE
KEY ELEMENTS
1. The observer-target (OT) Factor
2. Spotting
3. Corrections 17

18. OT FACTOR The OT factor is based on the distance from
SLIDE 18
OT FACTOR
The OT factor is based on the distance from
you to the target and is used to compute the
correction that you are going to send to FDC. 18

19. Computing the OT Factor
SLIDE 19
Computing the OT Factor
Distance to target: meters
Distance expressed to the nearest thousand: 4000
Divide by 1000=OT factor of 4 19

20. SLIDE 20
Range Spotting
Over
Left
Right
Short
OT Line 20

21. SLIDE 21
DEVIATION SPOTTING I
We can tell if the round is over or short of the target
but we must be able to correct left and right to
bring the round on the target. This can be done two
ways. First by using the Reticle Pattern on the
Binos.
This example shows
that the round has
impacted 50 mils
to the left of the target
Do not send any corrections
of 30 meters or less!!! 21

22. SLIDE 22
DEVIATION SPOTTING II
Second we can use hand Measurements 22

23. Adjusting the Round The distance to the target is 4000 meters.
SLIDE 23
Adjusting the Round
The distance to the target is 4000 meters.
OT factor is 4
Round impacted 50 mils
left of the target
The correction is
right 200
50(mils) x 4(OT)= 200 23

24. Range Corrections I 1st Correction You always add/drop 400 want to use
SLIDE 24
Range Corrections I
OT Line
1st Correction
add/drop 400
2nd Correction
add/drop 200
3rd Correction
add/drop 100
4th Correction
add/drop 50
FIRE FOR EFFECT
You always
want to use
a 400 meter
bracket.
First we want to bracket the target by having one round
over and one round short. The first round impacted over
the target so the correction would be DROP 400. 24

25. Range Corrections II OT Line
SLIDE 25
Range Corrections II
OT Line
The second round impacted short of the target
so the correction would be ADD 200. 25

26. Practical Exercise 1 The distance to the target 2200 meters
SLIDE 26
Practical Exercise 1
The distance to the target 2200 meters
The 1st round impacted 40mils to the right of the
target. What is your correction?
LEFT 80, DROP 400 26

27. Practical Exercise 2 The distance to the target 3500 meters
SLIDE 27
Practical Exercise 2
The distance to the target 3500 meters
The 2nd round impacted 10mils to the left of the
target. What is your correction?
RIGHT 30, ADD 200 27

28. FFE PHASE Your 3rd round has impacted and your next
SLIDE 28
FFE PHASE
Your 3rd round has impacted and your next
correction will be add 50 FFE. You will now get 6 to 8
rounds impacting on the target 28

29. At the completion of the FFE we must determine what
SLIDE 29
At the completion of the FFE we must determine what
effects we had on the target and send an End of Mission
(EOM) to the FDC. Tell FDC what happened.
Example: TANK BURNING, END OF MISSION, OVER. 29

30. For more information on various military topics, please come to www
For more information on various military topics, please come to for all your soldier military needs.