Call For Fire

Question 1

Five (5) “Rules” of Call for Fire

Answer 1

1. Transmit Position Report (POSREP)
2. Determine Observer-Target (OT) Direction
3. Estimate Observer-Target (OT) Distance
4. Determine OT Factor
5. Plot the Target

Question 2

(2) rules to follow when utilizing the mil to measure direction for indirect fires

Answer 2

1. Direction in mils is always stated in four digits. Ex: 400 mils is stated as 0400
   mils.
2. Direction in mils is always EXPRESSED to the nearest 10 mils.

Question 3

ARTILLERY EXPRESSION

Answer 3

In
artillery expression, if you are exactly between two values (i.e. the number ends in 5),
you will express to the nearest even whole number. Remember the phrase “It only
applies if it ends in 5”.
ODD is UP (3275 -> 3280)
EVEN is DOWN (3265 -> 3260)

Question 4

POSREP

Answer 4

Your grid location

Question 5

OT Direction

Answer 5

the azimuth from the FO to the target

Question 6

OT Distance

Answer 6

Distance from FO to the target
Rounded to the nearest 100m
Can use a map or distance estimate

Question 7

OT Factor

Answer 7

mil relation formula
W=(R/1000)*M
W is the lateral distance in meters, R is the range, or
distance, from your position to the target, and M is the angle in mils

Question 8

Call for Fire 6 elements

Answer 8

(1) Observer identification
(2) Warning order
(3) Target location
(4) Target description
(5) Method of engagement
(6) Method of fire and control

Question 9

Total transmissions

Answer 9

3
First: (1) Observer identification
(2) Warning order

Second: (3) Target location

Third: (4) Target description

(5) Method of engagement
(6) Method of fire and control

Question 10

Polar mission

Answer 10

the FO describes the target location in relation

to his/her position

Question 11

Grid mission

Answer 11

Default. Use at least 6 digit grid.

Question 12

Target Description

Answer 12

provide enough detail to enable the
FDC to determine the amount and type of ammunition to be used
Type of target (troops, supply dump, trucks)
Target activity (digging in, assembly area)
Squad (squad, three trucks)
Degree of protection (in the open, in fighting holes, in bunkers with
overhead cover)

Question 13

Danger Close

Answer 13

When the predicted impact of
o A mortar or artillery round is within 600 meters of friendly troops
o A 127mm round (Naval Guns) is within 750 meters of friendly troops

Question 14

in effect

Answer 14

indicates the projectile/fuze specified is desired during

the fire for effect phase

Question 15

Minimum the Message to Observe must contain (MTO)

Answer 15

o Unit(s) to fire
o Changes to the call for fire
o Number of rounds
o Target number

Question 16

Four possible range spottings

Answer 16

o Over: Round detonates beyond the target
o Short: Round detonates between the FO and the target
o Range correct: Round detonates at the same range as the target
o Range doubtful: Round detonates so far to the right or left of the OTL that
a definite range spotting cannot be made

Question 17

Deviation Spotting

Answer 17

On line
(# of mils) left
(# of mils) right
to the nearest 5 mils

Question 18

minimum deviation correction

Answer 18

30 meters

Question 19

minimum range correction

Answer 19

50 meters

Question 20

four methods of conducting

range corrections

Answer 20

o Hasty bracketing
o On-round adjustment
o Creeping fire
o Successive bracketing

Question 21

Range bracketing

Answer 21

0 – 1000 Add/drop 100

1000 – 2000 Add/drop 200

Greater than 2000 Add/drop 400

Question 22

Ending a Fire Mission

Answer 22

RREMS statement

o Refinement
o Record as target
o End of Mission
o Surveillance

Question 23

Immediate Suppression

Answer 23

Immediate suppression yields suppressive results only during the time
when fire is being delivered

Question 24

Hasty Bracketing

Answer 24

o Nature of the target
o Terrain
o Firing unit’s proficiency
o FO’s experience

Question 25

One Round Adjustment

Answer 25

o Spots the location of the first round
o Calculates and transmits a correction that is necessary to move the next
burst on to the target
o Fires for effect

Question 26

Creeping Fire

Answer 26

method of adjustment is used when the FO desires to
make range corrections by creeping the rounds closer to the target instead of bracketing
or making large corrections. Creeping fire method of adjustment is always used in
danger close missions