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GTA 17-02-015


CALL FOR FIRE
HEADQUARTERS, DEPARTMENT OF THE ARMY

NOVEMBER 2009

DISTRIBUTION RESTRICTION: (Refer to instructions on back cover.)

I. OBSERVER IDENTIFICATION: Use call signs from the SOI.
II. WARNING ORDER:
a. Type of Mission.
(1) Adjust Fire.
(2) Fire for Effect.
(3) Suppression and Immediate Smoke.
(4) Immediate Suppression.
b. Size of Element to Fire.
(1) Omission indicates a request for one FA battery.
(2) Larger units by stating size desired.
c. Method of Target Location:
(1) Grid: No announcement.
(2) Polar Plot: Announce the word “POLAR.”
(3) Shift from a Known Point: Announce the word “SHIFT” followed
immediately by the designation (Target (TGT) Number) of the
known point.
(4) Laser Polar Plot. The fire direction center (FDC) needs to know
as quickly as possible if the observer is using a laser. Although
the data are still polar, the backup computer system (BUCS)
uses a different format from the fire mission index. From the
initial transmission of the call for fire, the FDC will know which
of its four mission formats to display; for example, ADJUST
FIRE, LASER POLAR, OVER.
III. TARGET LOCATION:
a. Grid: Two character six digit grid, i.e., NA123456.
b. Polar: Direction and distance to the target from the observer’s
position.
c. Shift: Direction to the target.
Lateral Shift (left/right) in meters.
Range Shift (add/drop) in meters.
Vertical Shift (up/down) in meters, if significant.



SENDING THE CALL FOR FIRE

The standard call for fire is transmitted using field artillery radiotelephone
procedures in three radio transmissions:
a. Observer’s identification and warning order.
b. Target location.
c. Target Description, Method of Engagement, and Method of Fire and
Control. The simplified call for fire (used only with suppress and immediate
suppression missions) is sent in one radio call containing, at a minimum the
observer’s identification, warning order, and target location.


EXAMPLE: STANDARD CALL FOR FIRE


OBSERVER FIST/FDC
T2F18 THIS IS T2F24, ADJUST FIRE, T2F24 THIS IS T2F18, ADJUST FIRE,
OVER. OUT.

GRID 123456, OVER. GRID 123456, OUT.

3 TANKS AND 3 BMPs IN THE OPEN, 3 TANKS AND 3 BMPs IN THE OPEN,
DPICM IN EFFECT, AT MY COMMAND DPICM IN EFFECT, AT MY COM MAND,
OVER. AUTHENTICATE PAPA BRAVO, OVER.

I AUTHENTICATE CHARLIE, OUT.


EXAMPLE: SIMPLIFIED CALL FOR FIRE


T2F18 THIS IS T2F24, IMMEDIATE T2F24 THIS IS T2F18, IMMEDIATE
SUPPRESSION TGT AB 3001, OVER. SUPPRESSION TGT AB 3001, ATHEN-

TICATE TANGO FOXTROT, OVER.
I AUTHENTICATE DELTA, OUT.


DISTRIBUTION RESTRICTION: Distribution authorized to U.S. Government agencies
and their contractors only. This publication contains technical or operational information
that is for official government use. This determination was made on 17 November 2009.
DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of con-
tents or reconstruction of the document.
DISTRIBUTION: U.S. Army Training and Audiovisual Support Centers (TASC).
Supersedes GTA 17-02-015 April 2007







part of terrain-map association, adjustment of fire, and target location.
There are five methods to determine direction:

a. USING A COMPASS. Using an M2 or Iensatic compass, the FO can
measure direction. The FO will add/subtract the GM angle to determine
the grid direction to send to the FDC.

b. SCALING FROM A MAP. Using a protractor or an OF fan (observed
fire fan), the FO can scale direction from a map to an accuracy of 10 mils.

c. MEASURING FROM A REFERENCE POINT. Using a reference
point with a known direction, the FO can measure the angle between the
reference point and his target and ADD/SUBTRACT the measured angle
TO/FROM the known direction to determine the direction to the target.
The angle between the reference point and the target can be measured
with binos or with the hand measurement technique as depicted below.

d. ESTIMATING. With a thorough terrain map analysis the FO can
estimate direction by visualizing the eight cardinal directions (N, NE, E,
SE, S, SW, W, NW).

e. USING OTHER MEASURING DEVICES. The FO can use other
measuring devices such as an aiming circle, battery commander’s scope,
or a laser device which can provide direction to the nearest mil. The FO
should try to be as accurate as possible and the use of mils is preferred.
All measured directions sent to the FDC will be rounded to the nearest 10
mils.


ESTIMATING ANGLES IN MILS WITH THE HAND



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FOR OFFICIAL USE ONLY FOR OFFICIAL USE ONLY FOR OFFICIAL USE ONLY

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