cALL fOR fIRE SLIDES

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SLIDE 1
ADJUST INDIRECT FIRE
061-283-6003
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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
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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
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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
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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
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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
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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.
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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.
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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
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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.
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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.
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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 FDCis 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.
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Situation 2
SLIDE 13
You have a squad of infantry soldiers moving
on your position at grid AK307998. 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.
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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.
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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
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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.
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SLIDE 17
ADJUSTING PHASE
KEY ELEMENTS
1. The observer-target (OT) Factor 2.
Spotting 3. Corrections
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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.
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SLIDE 19
Computing the OT Factor
Distance to target 4200 meters Distance
expressed to the nearest thousand 4000 Divide
by 1000OT factor of 4
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SLIDE 20
Range Spotting
Over
Left
Right
Short
OT Line
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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!!!
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DEVIATION SPOTTING II
Second we can use hand Measurements
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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
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SLIDE 24
Range Corrections I
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.
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SLIDE 25
Range Corrections II
The second round impacted short of the target so
the correction would be ADD 200.
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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
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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
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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
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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.