QUAL/CERT- Explosives-Handling Personnel Qualification Certification Program.
RANGE WIND- The wind that blows along the LOF, either with or against the projectile.
READY-SERVICE STOWAGE- Ammunition stowage facilities in the immediate vicinity of the weapon served.
READY-SERVICE MAGAZINES- Spaces physically convenient to the weapons they serve; they provide permanent stowage for part of the ammunition allowance.
RESERVOIRS- Used to dissipate heat, remove contamination, separate air, and store fluid in hydraulic systems.
RFI- Radio frequency interference.
RFI- Ready for issue.
ROLL- The rotation of a missile about the longitudinal axis.
ROTATING BAND- The circular band made of commercially pure copper, copper alloy, or plastic seated in a scored cut in the after portion of the projectile body.
RSR- Ready service rings.
SEPARATE-LOADING AMMUNITION- Ammunition that is gun sizes 8 inches and larger.
SEPARATED AMMUNITION- Ammunition that consists of two units-the projectile assembly and cartridge assembly.
SERVO PRESSURE- Hydraulic fluid pressure ranging from 400 to 500 psi.
SHIP BASE PLANE (SBP)- The basic plane of origin and is perpendicular to the CRP and includes the base line of the ship.
SIGHT DEFLECTION- The angle that the plane through the gun bore is deflected left or right from the LOS.
SIGHT ANGLE- The difference between the LOF and LOS and measured perpendicular to the trunnion axis.
SLIP RING- Provides a continuous electrical connection between the cabling of the stationary structure of the gun mount or launcher and a rotary joint for the cooling system piping.
SMALL ARMS- Any firearm with a caliber (cal.) of .60 inch or smaller and all shotguns.
SMS- Surface missile system.
STREAM- Standard tensioned replenishment alongside method.
SUPERCHARGE PRESSURE- Hydraulic fluid pressure up to 150 psi.
SUSTAINED RATE OF FIRE- The average number of rounds fired per minute with the number of minutes this rate can be sustained without damage to the weapon.
TDD- Target detection device.
THRUST- The force that propels the missile forward at speeds sufficient to sustain flight.
USCG- United States Coast Guard.
VAC- Volts of alternating current.
VDC- Volts of direct current.
VERTREP- Vertical replenishment by helo to ship.
VISCOSITY- The measurement of internal resistance to flow of fluids.
VLA- Vertical launch asroc.
VLA- Vertical launching system.
WARHEAD- The payload of the missile.
WCS- Weapons control system.
WDS- Weapons direction system.
WEAPON CONTROL REFERENCE PLANE (WCRP)- This plane is established during initial construction and used during alignment verification.
YAW- The turning of a missile about the vertical axis.