|
R r (graphics only) roentgen; right;
rifleman (ARTEP 7‑8‑Drill (ARTEP 7‑7J‑DRILL
(FM 3‑21.71, FM 3‑21.8) ‑R ‑reinforcing (FM 1‑02) R reinforcing (FM 1‑02) R&A review and analysis R&D research and development R&DELSEC research and development
electronic security R&R rest and recuperation R&S reconnaissance and security,
(FMs 3‑21.8, 3‑21.20, 3‑90.2; and ARTEPs 7‑10‑ R&U repairs and utilities R/A readily available (FM 7‑92) r/hr roentgens per hour R/T record of trial R3P rearm,
refuel, and resupply point (FM 1‑02) RA regular army RAA rear
assembly area (FM 1‑02); reconnaissance avenues of approach RAAF Royal Australian Air Force RAAM remote
antiarmor mine (FM 1‑02) RAAMS Remote
Antiarmor Mine System (FM 1‑02) RAAP Redford Army ammunition plant RAAWS Ranger antiarmor weapon system
(FM 3‑21.8); Ranger antiarmor/antipersonnel weapon system
(FM 3‑21.220) RABA recoil amplifier barrel assembly
(FM 3‑22.65) RAC requisition advice care; Research
Analysis Corporation RACC Reporting Activity Control Card RACE restoration of aircraft to combat
effectivity RACEP (communications system) random
access correlation of extended performance RACES radio amateur civil emergency
service racket (EW)
Intercepted electronic emission that has been assigned to a number of the
trackblock) RACO rear area combat operations
(ARTEP 71‑2‑MTP) RACOMS rapid combat‑mapping
service RAD radiation absorbed dose
(FM 1‑02, FM 5-0‑1); obsolete; use 'centigray');
also, regional accountable depot and return to active duty rada radioactive RADAR radio detection and ranging
(although this term, like 'scuba,' originated as an acronym, it has evolved
into a common noun, 'radar') radar beacon (DOD)
A receiver‑transmitter combination that sends out a coded signal when
triggered by the proper type of pulse, enabling determination of range and
bearing information by the interrogating station or aircraft. Also called RB, FM 11‑32) RADAS random access discrete address RADCM radar countermeasures and
deception RADCON radiological control radiac (NATO)
An acronym derived from the term, "radioactivity, detection, indication,
and computation" (FM 1‑02) and used as an all‑encompassing
term to designate various types of radiological measuring instruments and
equipment (This word is normally used as an adjective.) See also FM 3‑11.4) radiation dose (DOD,
NATO) The total amount of ionizing radiation absorbed by material or tissues,
expressed in centigrays. [Note: the NATO definition ends here.] The term
radiation dose is often used in the sense of the exposure dose expressed in
roentgens, which is a measure of the total amount of ionization that the
quantity of radiation could produce in air. This could be distinguished from
the absorbed dose also given in rads, which represents the energy absorbed
from the radiation per gram of specified body tissue. Further, the biological
dose, in rems, is a measure of the biological effectiveness on the radiation
exposure, also absorbed dose; centigray; exposure dose;
radiation dose rate, FM 3‑11.4) radiation dose rate (DOD,
NATO) The radiation dose (dosage) absorbed per unit of time. [Note: the NATO
definition ends here.] A radiation dose rate can be set at some particular
unit of time (for example, H+1 hour) and would be called H+1 radiation dose
rate, also radiation dose, FM 3‑3‑1) radiation exposure state (DOD,
NATO) The condition of a unit, or exceptionally an individual, deduced from
the cumulative whole body radiation dose(s) received. It is expressed as a
symbol which indicates the potential for future operations and the degree of
risk if exposed to additional nuclear radiation. Also called radiation status Criteria
to assist the commander in measuring unit exposure to radiation based on
total past cumulative dose in centigray (cGy) Categories are as follows: a. radiation exposure status‑0 (RES‑0)—No
previous exposure history. b. radiation
exposure status‑1 (RES‑1)—Negligible radiation exposure
history (greater than 0 but less than 70 cGy) c. radiation exposure status‑2 (RES‑2)—Significant but
not a dangerous dose of radiation (greater than 70, but less than 150 cGy) d.
radiation exposure status‑3
(RES‑3)—Unit has already received a dose of radiation which
makes further exposure dangerous (greater than 150 cGy) Also called RS, also dose rate; operation
exposure guide; radiation dose
(FM 3‑3‑1) radio fix (DOD,
NATO) The location of a ship or aircraft by determining the direction of
radio signals coming to the ship or aircraft from two or more sending
stations, the locations of two which are known (NATO only) The locating of a
radio transmitter by bearings taken from two or more direction finding
stations, the site of the transmitter being at the point of intersection, FM 11‑32) radio listening silence The
situation where radios are on and continuously monitored with strict criteria
when a station on the radio network is allowed to break silence. For example,
"maintain radio listening silence until physical contact with the enemy
is made." See also radio silence
(FM 24‑1) radio silence (DOD,
NATO) A condition in which all or certain radio equipment capable of
radiation is kept inoperative. [Note: the NATO definition ends here.] (Note:
In combined or radiological monitoring See
monitoring (FM 1‑02) radiological survey (DOD,
NATO) The directed effort to determine the distribution and dose rates of
radiation in the area, also nuclear,
biological, and chemical survey, FM 3‑19) radius a circular area defined by a
stated radius (FM 3‑23.30) radius of action (DOD,
NATO) The maximum distance a ship, aircraft, or vehicle can travel away from
its base along a given course with normal combat load and return without
refueling, allowing for all safety and operating factors, FM 55‑1) radius of damage (DOD)
The distance from ground zero at which there is a 0.50 probability of
achieving the desired damage. Also called RD, also collateral
damage, FM 100‑30) radius of vulnerability
(nuclear) The radius of a circle about ground
zero within which friendly personnel will be exposed to a risk equal to, or
greater than, the emergency risk criterion, or within which materiel will be
subjected to a 5‑percent probability of the specified degree of damage.
Also called RV (FM 100‑30) radl radiological; radiology (use
abbreviations only in graphics) RADLFO radiological fallout RADLMON radiological monitor(ing) RADLOPS radiological operations RADLSAFE radiological safety RADLSO radiological survey officer RADLSV radiological survey RADM rear admiral radn radiation (use
abbreviations only in graphics) RADOT recording automatic digital
optical tracker RADREL radio relay RAF Royal Air Force RAG regimental artillery group
(OPFOR) RAGS river assault groups raid (DOD,
NATO) An operation, usually small scale, involving a swift penetration of
hostile territory to secure information, confuse the enemy, or to destroy
installations. It ends with a planned withdrawal upon completion of the assigned
mission (FM 3‑0) railcar (noun, MW9) railhead (DOD,
NATO) A point on a railway where loads are transferred between trains and
other means of transport, also aerial
port; seaport (FM 55‑20, see Table 5‑3 for symbol) railroad (noun, MW9) rally point 1. An
easily identifiable point on the ground at which units can reassemble and
reorganize if they become dispersed (FM 3‑90) 2. An easily identifiable
point on the ground at which aircrews and passengers can assemble and
reorganize following an incident requiring a forced landing. Also called RP (FM 3‑90; see Table 7‑13 for symbol) RALS right add, left subtract
(FM 3‑22.91) RAM random access memory; reliability,
availability, and maintainability; raised angle marker (FM 3‑21.38,
FM 3‑21.220), (TRADOC Pam 350‑70‑2); rockets,
artillery, and mortars (FM 3‑21.20) RAMD receiving agency materiel
division RAM‑D reliability, availability,
maintainability, and durability RAMMS responsive automated materiel
management random access memory read‑write
computer memory on which the location of data does not affect the speed of
its retrieval; especially, the main storage available to the user for
programs and data (FM 3‑22.91) random minelaying (DOD)
In land mine warfare, the laying of mines without regard to pattern (FM 20‑32) range (DOD)
1. The distance between any given point and an object or target (FM 6‑30). 2. Extent or distance
limiting the operation or action of something, such as the range of an
aircraft, ship, or gun (FM 6‑30). 3. The distance that can
be covered over a hard surface by a ground vehicle, with its rated payload,
using the fuel in its tank, and its cans normally carried as part of the
ground vehicle equipment (FM 55‑17) 4. Area equipped for
practice in shooting at targets. In this meaning, also called target range (FM 6‑30) range finder (noun, Merriam‑Webster
online 2002) an instrument used in gunnery to determine the distance of a
target range probable error The
range error caused by dispersion that will be exceeded as often as not in an
infinite number of rounds fired at the same elevation and is one‑eighth
of the length of the dispersion pattern at its greatest length. The value is
given in the firing tables (FM 6‑20‑40) range spread (DOD)
The technique used to place the mean point of impact of two or more units 100
meters apart on the gun‑target line (FM 6‑20‑40) range** A
picture label describing two groups separated in distance along the same line
of bearing. group names will be LEAD group/TRAIL group) RANXPE resident Army Nike‑X
project engineer RAP rear area protection, rocket‑assisted
projectile RAPCO Regional Air Priorities Control
Office RAPCON radar approach control center RAPIDS Random Access Personnel
Information Dissemination System RAPP registered air parcel post rappel (intrans verb, Third New
International Dictionary, Unabridged) rappel
seat a
rope harness used in rappelling and climbing rapport In
intelligence usage, a condition established by a human intelligence (HUMINT)
collector that is characterized by source confidence in the HUMINT collector
and a willingness to cooperate with him (FM 34‑52) RAS rear
area security (FM 1‑02) RASC rear area security controller RASCC rear area security control center RASO rear airfield supply organization RATCC radar air traffic control center
(US Navy) rate of fire (DOD,
NATO) The number of rounds fired per weapon per minute (FM 3‑21.91) RATEL radiotelephone (I have never seen
this one; I have only heard Soldiers say 'radio')
RATG radiotelegram; radiotelegraph,
radiotelegraphic; radiotelegraphy RATO rocket‑assisted takeoff RATT radio teletypewriter RAU radio
access unit (FM 1‑02) RAWIN radar wind sounding RAWLS rotating
amber warning light (TC 7-21) raygun (position heading/altitude) Indicating a radar lock‑on to unknown
aircraft. A request for a BUDDY SPIKE reply from friendly aircraft meeting
these parameters) RB radar
beacon; ribbon bridge (FM 1‑02) RBAAP Riverbank Army ammunition plant RBC rifle bore cleaner RBE relative biological effectiveness RBN radio beacon RBP ration breakdown point RBS Random Barrage System RC reserve
component (FM 1‑02) RCA riot
control agent (FM 1‑02) RCACS REDCOM Command and Control System RCAF Royal Canadian Air Force RCAT radio‑controlled aerial
target RCC regional
combatant commander (FM 3‑90.61) RCCC Reserve Component career
counselor RCCF Reserve Components contingency
force RCDC radar course directing central RCDCB regional civil defense
coordination boards RCERIP Reserve Component equipment
readiness improvement program RCERT regional
computer emergency response team (FM 1‑02) RCF repair
cycle float; remain on company frequency (FAA Handbook 7340.1);
remote communications facility, user (?) defined; range correction
factor (FM 3‑22.91) RCID recruiter code identification RCLG recoilless gun RCLO reports control liaison officer RCLR recoilless rifle (FM 3‑06.11) RCM radar countermeasures RCMAT radio‑controlled miniature aerial
target RCN Royal Canadian Navy; record
control number RCO reports control officer RCPA relation
combat power analysis (FM 3‑21.10) RCPA Reserve Components Program of the
Army RCPAC United States Army Reserve
Components Personnel and rcpt reception (use
abbreviations only in graphics) RCS requirement control symbol RCT radar control trailer; regimental
combat team (FM 90‑26) RCTB Reserve Components troop basis rctg recruiting (use
abbreviations only in graphics) RCTP Reserve Components Troop Program RCTSR Radio Code Test, Speed of
Response RCU remote
control unit (FM 1‑02); reserve component unit rd road or round (use abbreviations only in
graphics) RD readiness date; required date;
restricted data. Atomic Energy Act of 1954; radius of damage; rifle division
(FM 1‑02) RDAISA United States Army Research,
Development, and Acquisition Information Systems Agency R‑Day (DOD)
Redeployment day. The day on which redeployment of major combat, combat
support, and combat service support forces begins in an operation, also times (FM 5-0) RDD required delivery date;
radiological dispersal device (FM 3‑21.10) RDF radio direction finder(ing) RDP ration distributing point RDPC radar data‑processing
center RDRD return fire, deploy, report, and
develop the situation (FM 3‑90.6) rds rounds (use
abbreviations only in graphics, FM 3‑22.14 (ARTEP 7‑94‑MTP) RDTE research, development, test, and
evaluation RDTS Range Digital Transmission System RE research engineering REA reentry angle reachback (DOD)
The process of obtaining products, services, and applications, or forces, or
equipment, or material from organizations that are not forward deployed (Army/Marine
Corps) The ability to exploit resources, capabilities, expertise, and so on.,
not physically located in the theater or a joint operations area, when
established (FM 1‑02) reactivity One
of the four possible characteristics of hazardous waste. It is the ability to
enter into a violent chemical reaction, which may involve explosions or
fumes, also hazardous waste (FM 3‑100.4) read back A
procedure word
meaning, "Repeat this entire transmission back to me exactly as
received." (FM 24‑19) READJP readjustment pay read‑only memory a
usually small computer memory that contains special‑purpose
information, such as operating system software, which must not and cannot be
altered (FM 3‑22.91) real time (DOD)
Pertaining to the timeliness of data or information which has been delayed
only by the time required for electronic communication. This implies that
there are no noticeable delays, also near
real time (FM 3‑13) REAMS Resource Evaluation and
Management System rear area (DOD)
For any particular command, the area extending forward from its rear boundary
to the rear of the area assigned to the next lower level of command. This
area is provided primarily for the performance of support functions. [Note:
the Army definition adds, "… and is where the majority of the echelon's
sustaining functions occur."] See also brigade support area;
division support area (FM 3‑0) rear area operations
center/rear tactical operations center (DOD) A
command and control facility that serves as an area and/or subarea
commander's planning, coordinating, monitoring, advising, and directing
agency for area security operations. Also called RAOC (FM 3‑90, FM 1‑02) rear area response forces Forces
responsible for rear area threats beyond the capability of base defenses,
also security operations (FM 3‑90) rear area threat levels Levels
of response to threat activities. a. Level
I—Threats that can be defeated by base or base cluster self‑defense
measures. b. Level II—Threats
that are beyond base or base cluster self‑defense capabilities but can
be defeated by response forces, normally military police, with supporting
fires. c. Level rear
boundary Line that
defines the rear area of operations assigned to a particular unit. The area
behind the rear boundary belongs to the next higher commander and positioning
of elements behind it must be coordinated with that commander, also boundary (FM 3‑90; see Table 7‑7 for symbol) rear command post The rear echelon of a
unit's headquarters, consisting of those staff activities concerned primarily
with combat service support of the force, administrative support of the
headquarters, and other activities not immediately concerned with decisive
operations or operations within the close area. Typical representatives
within the rear echelon are elements of the G‑1 and G‑4 sections,
G‑5, adjutant general, staff judge advocate, inspector general,
surgeon, provost marshal, supporting military intelligence elements concerned
with counterintelligence and prisoner of war interrogation activities, and
the tactical airlift representative of the tactical air control party, also command post. (See Table 5‑8 for symbol) rear guard (DOD)
1. The rearmost elements of an advancing or a withdrawing force. It has the
following functions: to protect the rear of a column from hostile forces;
during the withdrawal, to delay the enemy; during the advance, to keep supply
routes open. 2. Security detachment that a moving ground force details to the
rear to keep it informed and covered, also guard; security
operations (FM 3‑90) REARM |