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Military

GLOSSARY

A

AAP allied administrative publication

abatis
obstacle created by felling trees so that the trunks lie across a road or trail and impede movement.

AC aiming circle

ACIF artillery counterfire information

ADAM area denial artillery munitions

ADFT artillery direct fire trainer

adjusting piece
the howitzer that is designated by FDC to conduct the adjust fire portion of a fire mission.
advance party
a group of unit representatives dispatched to a planned new position in advance of the main body to prepare the position for the arrival of the unit and its equipment.

AFATDS advanced field artillery tactical data system

AFCS automatic fire control system

AG assistant gunner

AIC ammunition identification code

aiming circle
an optical instrument used to orient the tube of an indirect fire weapon in a desired direction. This instrument can measure both the horizontal and vertical angles.
aiming point
a sharply defined point or object on which the sight of a weapon is aligned when the weapon is laid for direction. There are two general types of aiming points--distant and close-in.
aiming post
a striped rod used in pairs as a close-in aiming point.

ALOC administrative and logistics operations center

alt altitude

alternate position
the position given to a weapon, unit, or individual to be occupied when the primary position becomes untenable or unsuitable for carrying out the mission. The alternate position is located so that the unit can continue the mission it had when in its primary position.

AM amplitude modulated

AMB air mission brief

AMC at my command

ammunition lot number
code number assigned to a particular lot of ammunition when it is manufactured. This manufacturer's lot number is alphanumeric and is different from the lot number assigned to an ammunition lot by the unit.
ammunition supply point
location at which conventional ammunition is available for distribution to using units.
ammunition transfer point
location established in the maneuver brigade's trains area to issue high-usage conventional ammunition to using units.

AMTP ARTEP mission training plan

ant antenna

AOF azimuth of fire

AOP allied ordinance publication

AP or APERS antipersonnel

AP-BAF (memory aid) az to the aiming point minus back-azimuth of fire

APERS-T antipersonnel--tracer

app appendix

AR Army regulation

area denial artillery munitions
projectiles M692 and M731 are 155-mm mine munitions containing 36 antipersonnel mines each.
arming range
the range at which a fuze becomes operational.

ARTEP Army training and evaluation plan

ARSS automated range safety system

ASP ammunition supply point

ATGM antitank guided missile

ATP ammunition transfer point

automated range safety system
a computer software application which allows for the automated computation of range safety data or safety Ts.
axis of tube
imaginary center line of the tube of a cannon.

AXO assistant executive officer

az azimuth

azimuth
a horizontal, clockwise angle measured from north. A grid azimuth, measured from grid north, is the azimuth normally used in the field artillery. A magnetic azimuth is measured from magnetic north; a true azimuth is measured from true north.
azimuth of fire
the direction, expressed in mils, that a battery is laid (oriented) on when it occupies a position.

B
back-azimuth
the back-azimuth is equal to the azimuth plus or minus 3,200 mils.

BAS battalion aid station

base-ejection shell
a type of projectile that ejects its payload from the base, such as the ICM projectile.
basic load of ammunition
the amount of ammunition a unit is authorized to maintain to initiate combat and sustain itself until resupplied.
battery center
the chart location of the battery. The geographic center of all weapons.
battery computer system
an automated data processing system located in the firing battery. Consists of three major components: lightweight computer unit, power distribution unit, and 1 to 12 gun display units. Used to compute accurate firing data and as a digital communications interface. For additional information, see ST 6-40-2.

battery operations center
a facility established to serve as an alternate FDC and as the battery command post.

BB basebleed

BC battery commander

BCS battery computer system

BD base detonating (fuze)

BDAR battlefield damage assessment and repair

BE Belgium or base ejecting

BG box grinder

BII basic issue item

BMO battalion motor officer

BMT battalion maintenance technician

bn battalion

BOC battery operations center

BOMREP bombing report

boresighting
the process by which the optical axes of the weapon sights are aligned parallel to the axis of the cannon tube. The primary methods of boresighting are the distant aiming point, the testing target, or standard angle. Boresight is verified with the M140/M139 alignment device.

BSA brigade support area

BSOC battalion support operations center

btry battery

BUCS backup computer system

C

CA Canada or case assembly

cal caliber

caliber 1.
The diameter of the bore of a weapon; obtained in rifled weapons by measuring beween opposite lands. 2. Diameter of a projectile. 3. Unit of measure used to express , the length of the bore of a weapon. The number of calibers is determined by dividing the length of the bore of the weapon (from breech face of the tube to the muzzle) by the diameter of its bore.

CAM chemical agent monitor

CANCEL
a command which, when coupled with an order, rescinds that order. For example, CANCEL CHECK FIRING indicates the previous order to check firing is no longer in effect.

CATV combat ammunition transport vehicle

CBR chemical, biological and radiological

CCL combat-configured loads

CEASE LOADING
a command that prohibits a section from loading another round.

CECOM Communications-Electronic Command

CEP circular error probable

CF command/fire (radio net)

CFB chief of firing battery

CFST critical fire support task

chan channel

charge
the propellant of semifixed or separate-loading ammunition.
CHECK FIRING
a command given to cause an immediate halt in firing.

chg charge

close-in aiming point
an aiming point set up in the platoon area. The primary close-in aiming point is the infinity collimator, a lightweight optical instrument that simulates an aiming point at infinity. A secondary close-in aiming point is a set of two aiming posts. When aligned, the two posts establish a line along which the panoramic telescope is sighted when laying for direction.

cmd command (radio net)

COB center of battery

collimator
an infinity reference device used as a close-in aiming point during indirect fire.

comm communications

common deflection
the deflection corresponding to the azimuth of fire that the FDC has input into the BCS and BUCS. The common deflection for all weapons with an M100-series sight is 3200. For the M101A1 it is 2800.
common grid
the extension of survey control (direction, location, and altitude) from a base datum to all fire support assets requiring orientation and positioning data within a command. Note that the USMC terminology is common survey.
complete rounds
term that includes the various components of a round required to perform the firing function. There are four components in a complete round: a primer, a propellant, a projectile, and a fuze.

comp site complementary angle of site

COMSEC communications security

continuous fire
fires delivered by loading and firing as rapidly as possible consistent with accuracy and within the prescribed rates of fire for the pieces.
cookoff
functioning of chambered ammunition caused by the heat of the weapon rather than by normal firing.
coppering
metal fouling left in the bore of a cannon by the rotating band of a projectile.

corr correction

counterfire
fires directed against indirect-fire systems, to include their weapons, command and control, communications, ammunition, and target acquisition components.
counterrecoil forward motion of a cannon returning to firing (in-battery) position after recoil.

CP command post or concrete piercing (fuze)

Cphd Copperhead

crater analysis
process by which the direction to an artillery or mortar unit is determined from analysis of the shell crater. Additionally, shell fragments are collected to determine the type of shell that caused the crater.
crest
a terrain feature of such altitude that it limits the minimum elevation of a weapon.
crew-served weapons
weapons, such as machine guns or howitzers, that require two or more persons to operate.

CS chlorobenzaimalononitrile (riot control agent)

CSL chemical storage location

CSS combat service support

CUCV commercial utility cargo vehicle

D

D delay (fuze)

DA Denmark or Department of the Army

danger close
field artillery frees delivered within 600 meters of friendly forces.

DAP distant aiming point

DC declination constant, or direct current

DCT digital communications terminal

declination constant
the horizontal clockwise angle from grid north to magnetic north; the grid azimuth of magnetic north. The declination constant is recorded for every instrument equipped with a magnetic needle. The constant for any instrument will vary in different localities, and the constant of different instruments in the same locality will also vary. This variation is due to slight differences in manufacturing, to the shock from handling the instruments during normal use, and to the shift of magnetic north.
deflection
the horizontal clockwise angle from the line of fire, or the rearward extension of the line of fire, to the line of sight of a designated aiming point with the vertex of the angle at the sight. In addition to deflection as a fire command, the firing battery is concerned with both common and referred deflection.
deliberate occupation
the occupation of a position by a unit that has been fully prepared for occupation by the advance party; for example, howitzer positions have been selected and initial deflections provided to the gun guides.
destruction fire
indirect fire delivered with the sole purpose of destroying material targets by massing fires. Each firing element may expend large quantities of ammunition to destroy the target.

df deflection

diam diameter

digital message device
a small, portable, two-way communications terminal used by field artillery observers to transmit and receive high speed digital messages. May communicate with IFSAS, TACFIRE, BCS, VFMEDs, FEDs, DCTs or other DMDs through wire or standard army radios.
direct fire
fire brought on a target utilizing direct laying techniques.
direct laying
the aiming of a piece by sighting directly on the target.

dis distance

displacement
1. The act of leaving a position prior to occupying another. 2. The undesired movement of a sight caused by traversing the tube or by the shock of firing.
distant aiming point
an aiming point at least 1,500 meters from the pieces.
distribution of fire
the pattern of bursts in the target area; the sheaf.

div arty division artillery

DMD digital message device

DNL do not load

DODAC Department of Defense ammunition code

DODIC Department of Defense identification code

DPICM dual-purpose improved conventional munitions

DS direct support

DTG date-time group

DUD
an explosive munition which has failed to function due to fuze or projectile malfunction, thus creating a potentially hazardous condition.

DZ drop zone

E

ED emergency destruction

EFC equivalent full charge

el elevation

emergency mission
mission occupying a position, from the march, in response to a call for fire, without prior reconnaissance or preparation of the position.

EMP electromagnetic pulse

end of the orienting line
a point on the orienting line marked by any sharply defined permanent or semipermanent object such as a steeple, flag-pole, or stake. It should be visible during darkness.

EOD explosive ordinance disposal

EOL end of the orienting line

EOM end of mission

EPW enemy prisoner of war

equivalent full charge
the method used to determine the remaining life of a cannon tube. To convert to EFC rounds, the quantity of rounds fired is multiplied by the EFC factor as indicated in the weapon's technical manual. Computations are recorded on DA Form 2408-4, or NAVMC 1055A (gun book).

ET electronic time (fuze)

EW electronic warfare

F

F Fahrenheit

FA field artillery

family of scatterable mines
a group of munitions or devices which contain scatterable mines delivered by aircraft, rocket, artillery, or vehicle. The artillery has four 155-mm projectiles, of which two (M692/M731) are area denial artillery munitions and two (M718/M741) are remotely activated antitank mines. The projectiles are ordered for either long or short self-destruct. The mode is not selected by the firing unit. Some of the mines are equipped with antidisturbance devices.

FASCAM family of scatterable mines

FASP field artillery support plan

FAST forward area support team

FC field circular

FD fire direction (raido net)

FDC fire direction center

FDO fire direction officer

FEBA forward edge of the battle area

FED forward entry device

FFE fire for effect

final protective fire
a continuous fire mission that creates a wall of steel to protect units in a defensive posture.
fire control alignment tests
tests performed to determine if the on-carriage fire control equipment, the gunner's quadrant, and the alignment device are in correct adjustment.
Firefinder
AN/TPQ-36 mortar-locating radar, or AN/TPQ-37 artillery-locating radar.
fire support team
in fire support operations, a team made up of a team chief (FA lieutenant) and the additional personnel and equipment required to request, coordinate, and direct fire support efforts for company-size maneuver units.

1SG first sergeant

FIST fire support team

FLOT forward line of own troops

FLS forward landing strip

FM frequency modulated, field manual

FOM figure of merit

forcing cone
tapered beginning of the lands of the formations rifling of a cannon tube. The forcing cone allows the rotating band of the projectile to be gradually engaged by the rifling, thereby centering the projectile in the bore.
formations
weapons emplacement in position area as selected by the gunnery sergeant.
forward entry device
a lightweight digital data communications device which replaces the DMD.

FPF final protective fires

FPL final protective line

FR France

fratricide
firing of a weapon which results in the unintended or inadvertent injury or death of allied or friendly personnel.

FRTP flat rack transfer point

FS fire support or fuze setting

FSB forward support battalion

FSC Federal supply classification

FSCOORD fire support coordinator

FSE fire support element

FSN Federal stock number

FT firing tables

fz fuze

G

GA gun assembly

GB green bag

GDU gun display unit (BCS)

GE Germany

GFT graphical firing table

GLPS gun laying and positioning system

G-M grid magnetic

GN grid north

GPS global positioning system

GQ gunner's quadrant

GR Greece

grid declination
the smaller angle between true north and grid north. Grid declination is indicated in the marginal data of maps as east or west of true north.
grid north
the north direction of the vertical grid lines on a military map, a photomap, or a grid sheet. Since determination of firing data for direction is based on grid north, the term azimuth normally means grid azimuth.

GSG gunnery sergeant

GST graphical site table

gun display unit
digital display unit on the howitzer that will receive and display firing data computed and transmitted by the BCS in the FDC. The GDU consists of a section chief's assembly, two gun assemblies, and the case assembly.
gun laying and positioning system
a tripod-mounted positioning and orienting device which uses global positioning system (GPS) and a laser range finder to allow precise laying of howitzers. GLPS eliminates the need for external survey.
gunner's reference card
DA Form 5212-R, which is used to record essential mission data and referred deflections given aiming points.

H

H blister agent (mustard)

HA high angle

hangfire
temporary failure or delay in the action of a primer, an igniter, or a propelling charge.
hasty occupation
the occupation of a position that has not been fully prepared for occupation by the advance party.
hasty survey
techniques used to establish rapid and sufficiently accurate direction and/or position data through simplified procedures and with cannon battery TOE equipment. See Chapter 5 for detailed procedures.

HC hexachloroethane (smoke)

hdst headset

HE high explosive

HEAT high-explosive antitank

HEAT-T high-explosive antitank--tracer

heavy artillery
more than 160-mm bore.

HEDP high explosive dual purpose

HEMAT heavy expanded-mobility ammunition trailer

HEMTT heavy expanded-mobility tactical truck

HEP high-explosive plastic

HEP-T high-explosive plastic--tracer

HERA high-explosive rocket-assisted

HMMWV high-mobility multipurpose wheeled vehicle

horiz horizontal

hot section
a cannon section designated to maintain full crews at their posts for instant reaction to a fire mission. This technique minimizes reaction time to calls for fire and allows the other section to accomplish the various tasks that must be done during position improvement.

how howitzer

howitzer
a field artillery weapon characterized by a medium length barrel (between that of a mortar and a gun), a relatively high angle of fire, and a medium muzzle velocity.

HP hydropneumatic

HPC hydropneumatic constant

HPV hydropneumatic variable

HSW horizontal sliding wedge

HUMINT human intelligence

I

IAW in accordance with

ICM improved conventional munitions

IFF identification, friend or foe

IFP individual fighting position

IFSAS initial fire support automated system

illum illumination

IMINT imagery intelligence

immediate suppression
field artillery fries required when the enemy has freed from, or has been firing and can fire from, a given location such that direct fire weapons and supporting field artillery must respond instantaneously.
initial fire support automated system
a tactical fire direction computer system which replaces the older TACFIRE.
indirect laying
the aiming of a piece by sighting at an aiming point other than the target. The piece is laid for direction by setting a given deflection on the sight and traversing the tube until the line of sight of the panoramic telescope is on the aiming point. The piece is laid for elevation on the range quadrant or gunner's quadrant by elevating or depressing the tube until the appropriate bubble is centered.
instrument reading
the horizontal clockwise angle from the line of fire to magnetic north.
intermediate crest
a crest lying between the firing position and the target that is not visible from the firing position.

IOC initial operational capability

IPB intelligence preparation of the battlefield

IPRTF in place ready to fire

IR instrument reading

IT Italy

ITS individual training standards

J
jamming
the intentional transmission of interfering electronic signals in order to disrupt the reception of other signals.

JCS Joint Chiefs of Staff

K

kg kilogram

km kilometer

KOK cryptographic operational keying device

L

L left or long duration (suffix with ADAMS or RAAMS)

laid
a weapon is laid when the axis of the tube is accurately aimed in a predetermined direction.
lands
the raised portion between the grooves in the bore of a rifled cannon tube. Spiral channels cut in the bore of the cannon tube are the grooves. These (in conjunction with the rotating band) impart spin on the projectile.

LARS left, add; right, subtract

LAW light antitank weapon (M72A2 or AT4)

laying
the process of orienting a weapon for direction.

LCU lightweight computer unit

LED light emitting diode

LIC low-intensity conflict

lightweight computer unit
the AN/GYK-37 field artillery fire direction computer. Replaces the BCU as the computer component of the BCS.
line of fire
the direction of the line established by the tube or any line parallel to that line in the firing battery. It is an imaginary line extending through the central axis of the tube when looking through the breech to the muzzle of the weapon

LOF line of fire

LOGPAC logistics package

LP listening post

LRP logistics release point

LU Luxembourg

LZ landing zone

M

m meter

mil

MA muzzle action

magnetic declination
the smaller angle between true north and magnetic north. This angle is indicated in the marginal data of maps as east or west of true north. Since the magnetic declination varies slightly from year to year, a correction factor (the annual magnetic changes) is also shown in the marginal data of military maps.
magnetic north
the direction to the magnetic North Pole.

MAMT muzzle action, mechanical time (fuze)

MAPMOD map modification (mnemonic)

max maximum

MCCRES Marine Corps combat readiness evaluation system

medium artillery
120-mm through 160-mm bore

met meteorology

METTAL (memory aid) mission, enemy, terrain and weather, troops available, aircraft available, load requirements

METT-T mission, enemy, terrain, troops, and time

MG machine gun

MHE materials handling equipment

MHL manufacturer's hairline

mil
a unit of measurement for angles. There are 6,400 mils in a complete circle.

min minimum

minimum quadrant elevation
1. The lowest quadrant elevation of a weapon at which the projectile will safely clear an obstacle between the weapon and the target. 2. The lowest quadrant elevation of a weapon at which the projectile will reach the minimum range line of an impact area before detonation.

min QE minimum quadrant elevation

mod modified

MOFA multiple option fuze artillery

MOPP mission-oriented protection posture

MORTREP mortar bombing report

MRE meal, ready to eat

MSR main supply route

MST minimum safe time

MT mechanical time

MTOE modification tables of organization and equipment

MTP mission training plan

MTSQ mechanical time superquick

MV muzzle velocity

mvr maneuver

MVV muzzle velocity variation

MWO modification work order

N

NATO North Atlantic Treaty Organization

NBC nuclear, biological, chemical

NCA National Command Authority

NCO noncommissioned officer

NCOIC noncommissioned officer in charge (of)

NCS net control station

ND nondelay (fuze)

NEO noncombatant evacuation operations

NET no earlier than

NFA no-fire area

NFL-rule
memory aid for correcting displacement when using aiming posts. The near post, far post, and pantel line are an equal number of mils apart.

NICAD nickel-cadmium

NIIN national item identification number

NL Netherlands

NLT no later than

NO Norway

NSN national stock number

O

OA orienting angle

O&I operations and intelligence

OD olive drab

OEG operational exposure guide

OIC officer in charge

OL orienting line

OOTW operations other than war

OP observation post

OPORD operation order

OPSEC operations security

orienting angle
a horizontal clockwise angle from the line of fire to the orienting line.
orienting line
a line of known direction in the battery area that serves as a basis for laying the battery for direction. The azimuth of the orienting line is the direction from the orienting station to a designated end of the orienting line.
orienting station
a point established on the ground which has directional control. The aiming circle is set up over this point to lay the pieces by the orienting angle method.

ORSTA orienting station (BCS or BUCS mnemonic)

ORSTB second orienting station (BCS or BUCS mnemonic)

OS orienting station

P

PADS position and azimuth determining system

pam pamphlet

panoramic telescope (usually called the sight or pantel)

a fire control instrument used for either direct or indirect fire. Panoramic telescopes used on
current field artillery weapons are as shown below.

pantel panoramic telescope

PCC precombat check

PCI precombat inspection

PCR piece-to-crest range

PD point detonating (fuze)

PDF primary direction of fire

PDU power distribution unit

PH percussion hammer

platoon leader
is the tactical commander of the firing platoon.
platoon sergeant
the primary enlisted assistant to the platoon leader. He must be prepared to assume all of the platoon leaders duties.

PLAY (memory aid) pantel lays you

PLGR precise lightweight global positioning system receiver

PL platoon leader

PLL prescribed load list

PLS palletized load system

PSG platoon sergeant

PMCS preventive maintenance checks and services

pneu pneumatic

PO Portugal

POC platoon operations center

POL petroleum, oils and lubricants

PPS precise positioning system

primary position
the position from which a battery intends to perform its assigned mission.
priority target
a target that firing units lay on while not engaged in a fire mission. It is designated as critical by a maneuver commander on the basis of type, location, or time sensitivity. Generally, one battery will be laid on each priority target (as with an FPF).

prox proximity (fuze)

PSG platoon sergeant

PSYOPS psychological operations

PTF pieces to fire

PTO power takeoff

pub publication

PZ pickup zone

Q

Q quick (fuze)

QE quadrant elevation

QSTAG quadripartite standardization agreement

R

R right

R3P rearm, refuel, resupply point

RAAMS remote antiarmor mine system

RALS right, add; left, subtract

RAP rocket-assisted projectile

RC rounds complete (BCS)

RDF radio direction finding

rd/min rounds per minute

RDP range-deflection protractor

rearward extension of the line of fire
an imaginary line extending through the center axis of the tube when looking down through the muzzle to the breech of the weapon. The rearward extension of the line of fire is a line in the exact opposite direction of the line of fire.

REC radio electronic combat

recoil rearward motion of a weapon caused by firing.

refer
to measure (using the panoramic telescope) the deflection to a given aiming point without moving the tube. In some instances, this referred deflection will be reported. If it is desired that it be recorded, the command RECORD REFERRED DEFLECTION is announced.
referred deflection
the deflection measured to an aiming point without moving the tube of the weapon.
registering piece
the howitzer that is designated by FDC to conduct a registration fire mission.
remote antiarmor mine system
M718/M741 projectile containing nine antitank mines. The M718 and M741 projectiles are equipped with a long and a short self-destruct capability respectively.

rg range

RJ road junction

ROCKREP rocketing report

ROE rules of engagement

ROM read-only memory

RP release point

RPG rocket-propelled grenade

rpm revolutions per minute

RSOP reconnaissance, selection, and occupation of position

S

S series or short duration (suffix with ADAM and RAAMS)

SAD (memory aid) subtract the azimuth of fire from the declination constant

SAM (memory aid) subtract the azimuth of fire from the measured azimuth

SCA section chiefs assembly (GDU)

SCP survey control point

SEAD suppression of enemy air defense

sec second

sheaf
the lateral distribution of the bursts of two or more pieces fired together. The width of the sheaf is the lateral distance (perpendicular to the direction of fire) between the centers of flank bursts. A sheaf may be formed in any of the following patterns: converged, open, parallel, or special.

SHELREP shelling report

SHORAD short-range air defense

si site

SID (memory aid) subtract the instrument reading from the declination constant

SIGINT signals intelligence

SIGSEC signals security

SIMO simultaneous observation

SINCGARS single-channel ground and airborne radio

SIP system spring-actuated, inertia percussion

SITREP situation report

SM soldier's manual

small unit transceiver
a short-range FM radio designed to supplement the intrabattery wire system and to enhance command and control of marches and movements.

smk smoke

SOI signal operation instructions

SOL (memory aid) subtract the orienting angle from the orienting line

SOP standing operating procedures

SP start point or self-propelled

spoil refuse removed in the process of digging

spt support

SQ superquick

square
in artillery, a mark or measurement on projectiles to denotes standard weight or deviation from a standard weight.

SR self-registration

STANAG standardization agreement

STIS stepped thread, interrupted screw

STP soldier's training publication

supplementary position
a position selected for accomplishment of a specific mission other than the primary mission.

SUT small-unit transceiver

T

T tracer

TACFIRE tactical fire direction system

tan tangent

T&E traverse and elevation

TASC Training and Audiovisual Support Center

TB technical bulletin

TBD to be determined

TC training circular or tack commander

TEC training extensiion course

TFOOL (memory aid) take the azimuth of fire out of the orienting line

TFT tabular firing tablesn

TGPC terrain gun positioning correction

tgt target

ti time

TIP telescope in place

TIS thread interrupted screw

TLABSPAP (memory aid) trails, spades, and/or firing platform properly emplaced, lay weapon; aiming point emplaced; boresight verified or performed; second circle; prefire checks on the weapon system performed; ammunition prepared; position improvement

TLP troop leading procedure

TM technical manual

TOC tactical operatioins center

TOE tables of organization and equipment

TOF time of flight

TOT time on target

TOW tube-launched, optically tracked, wire-guided missile

TRADOC US Army Training and Doctrine Command

TRALS (memory aid) true on right, add; left, subtract

TRP target reference point

TSFO training set, fire observation

TU Turkey

two step deflection method
1. Set off the announced deflection on the pantel using the reset counter scale. 2. Traverses the weapon until line of sight is back on the aiming point.

U

UBL unit basic load

UK United Kingdom

US United States

USAF United States Air Force

USAFAS United States Army Field Artillery School

USMC United States Marine Corps

UTM universal transverse mercator

V

VA vertical angle

VE velocity error

vertical angle
the angle measured vertically up or down from a horizontal plane or reference. The vertical angle is expressed as plus or minus depending on whether the position is above (plus) or below (minus) the horizontal plane.

vertical interval
the difference in height between the weapon and the desired burst point.

VFMED variable format message entry device

VI vertical interval

vol volume

VSW vertical sliding wedge

VT variable time (fuze)

W

WARNO warning order

WB white bag

WP white phosphorus

WR when ready

WSRO weapon system replacement operations

wt weight

X
XO executive officer



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