OpO-Operation Order, a directive issued by a commander to subordinate commanders for the execution of an operation,
OP-Observation Post,
OPIan-Operation Plan, a plan for a single or series of connected operations to be carried out simultaneously or in succession;
directive issued by higher authority [o permit subordinate commanders to prepare supporting plans and orders,
OpsO ~ Operations officer.
OpSum-Operational Summary.
OSJS (MACV)-Office of the Secretariat, Joint Staff (Military Assistance Command Vietnam).
OV-10-North American Rockwcll Bronco, rwin-engine, turboprop observation and light-attack aircraft.
P-3 -Lockheed Orion, four-engine, turboprop naval patrol aircraft.
PATMA-Pacific Air Traffic Management Agency.
Pave Nail-Radio call sign for U.S. Air Force OV-10 with laser-designator to control precision-guided munitions.
PAVN - Peoples Army of Vietnam (North Vietnam). This acronym
was dropped in favor of "NVA" (North Vietnamese Army).
PcrsO - Personnel officer.
PF-Popular Force, Vietnamese militia who were usually employed
in the defense of their own communities.
PGM - Precision guided-munirions, so-called "smart bombs,"
PUC-Photo Imagery Inrerpreration Center.
POL-Petroleum, Oil, and Lubricanrs.
POW- Prisoner of war.
PRC35 - Standard very-high-frequency radio used by Marine ground
units in Vietnam for communication over distances up to 25
miles,
PRG-People's Revolutionary Government (Viet Cong).
ProvMAG - Provisional Marine Aircraft Group,
PSA-Province Senior Advisor-
QL-Vietnamese acronym for national highway.
R&R-Rest and Recreation.
Recoilless Rifle, 106mm-U.S. M40 single-shot, recoilless, breech-loaded weapon which weighs 438 pounds when assembled and mounted for firing; it has a sustained rate of fire of six rounds per minute and an effective range of l,3d5 meters.
Rcgl -Regiment.
R F-4 - Photographic-reconnaissance model of the F4B Phantom.
RF-SA-Vought reconnaissance version of the F-8 Crusader.
RF-Regional force, Vietnamese militia who were employed in a specific region.
Rifle, M14-U.S. gas-operated, magazine-fed, air-cooled, semiautomatic, 7.62mm caliber shoulder weapon, which weighs 12 pounds with a full 20-round magazine; it has a sustained rare of fire of 30 rounds per minute and an effective range of 500 yards.
Rifle, M16 - U.S. gas-operated, magazine-fed, air-cooled, automatic. 5.5(imm caliber shoulder weapon, which weighs 3.1 pounds with a 20-round magazine; ir has a sustained rate of fire of 12-15 rounds per minute and an effective range of 460 meters,
RLT-Regimental Landing Team.
ROK-Republic of Korea.
Rolling Thunder Codename for initial U.S. air operations over North Vietnam.
ROE-Rules of Engagement,
RPG-Rocket Propelled Grenade.
RVN-Republic of Vietnam (South Vietnam).
RVNAF-Republic of Vietnam Armed Forces,
R2-Reconnaissance Zone.
S-1, -2 ei al.-Designations for staff positions at regimenral and battalion levels. S-1 refers to the staff member responsible for personnel; S-2, intelligence; S-3, operations; S-4, logistics; and S-5, civil affairs.
SAC - Strategic Air Command.
SACC Supporting Arms Control Center.
SAM Surface to Air Missile.
SAR Search and Rescue.
SATS - Short Airfield for Tactical Support, an expeditionary airfield used by Marine Corps aviation that includes a portable run-way surface, aircraft launching and recovery devices, and other essential components.
SCAMP-Sensor Control and Management Platoon.
SEATO-Southeast Asia Treaty Organization.
SecDef- Secretary of Defense.
SecSrate-Secretary of State.
SevemhAF- Seventh Air Force, the major U.S. Air Force command in Southeast Asia.
SeventhFli -The U.S. Navy fleet assigned to rhe Western Pacific,
SID-Seismic Intrusion Device, sensor used to monitor movement through ground vibrations.
SitRep Situation Report.
SKS - Simonov-dcsigned. gas-operated, 7.62mm semiautomatic rifle.
SMA-Senior Marine Advisor.
Song-Vietnamese for river,
SOP-Standing Operating Procedure, set of instructions laying out
standardized procedures-
Sorric-An operational flight by one aircraft-
SOS-Special Operations Squadron,
SOW-Spccial Operations Wing,
SPG-Special planning group.
SptRcpt-Spot Report.
SRF-Ship Repair Facility,
TA-4-Douglas, dual-scat version of the A-4 Skyhawk used as trainer and FAC/TAC platform.
T-39-North American Rockwell Sabrcliner, twin-engine jet, used as trainer and passenger aircraft.
TAC(A)-- Tactical Air Coordinator (Airborne), a designated avia-ror who controls and coordinates air support from an aircraft.
TACC-Tactical Air Control Center, the principal air operations installation for controlling all aircraft and air-warning functions of racrical air operations.
TACP- Tactical Air Control Party, a subordinate operational component of a tactical air control sysrem designed to provide air liaison to land forces and for the control of aircraft.
TADC-Tactical Air Direction Center, an air operations installation under the "lactical Air Control Center, which directs aircraft and aircraft warning functions of the tactical air center,
TAFDS-Tactical Airfield Fuel Dispensing System, the expeditionary storage and dispensing system for aviation fuel at tactical air fields. It uses 10,000-gailon fabric tanks to store the fuel.
TAOC-Tactical Air Operations Center, a subordinate component
