Glossary

“Plane Talk” Glossary

The following glossary of abbreviations, acronyms and terms is provided to help make sense of the lingo that is associated with the Mather Airport Operations.

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4R/22L The 11,301-foot runway at Mather.  Approved for CAT I landing minimums.
4L/22R The 6,040-foot runway at Mather.  Not approved for instrument approaches.
ABX ABX Air (a major cargo air carrier)
ADF Automatic Direction Finder – a navigation aid for aircraft
AGL Above Ground Level – the height of an aircraft above ground
BOS Board of Supervisors
CAT I Category 1 instrument landing procedures – Aircraft are allowed to begin approach if visibility is greater than 1/2 mile.
CAT II Category 2 instrument landing procedures – Aircraft are allowed to begin approach if visibility is greater than 1/4 mile.
CAT IIIa Category 3 instrument landing procedures, Subcategory (a) – Aircraft are allowed to begin approach if visibility is greater than 600 feet.
CAT IIIb Category 3 instrument landing procedures, Subcategory (b) – Aircraft are allowed to begin approach if visibility is greater than 300 feet.
CAT IIIc Category 3 instrument landing procedures, Subcategory (c) – Aircraft are allowed to begin approach if visibility is zero feet.
CDA Continuous Descent Approach – A technique being tested by UPS to reduce noise
CEQA California Environmental Quality Act
CIP Capital Improvement Program
dB Decibel – A measurement of sound
DHL DHL (a major cargo air carrier)
DME Distance Measuring Equipment
EIR Environmental Impact Report
EIS Environmental Impact Study
FAA Federal Aviation Administration
GS Glide Slope – The elevation portion of the ILS
ICAO International Civil Aviation Organization
IFR Instrument Flight Rules – The pilot flies using cockpit instrumentation and navigation on assigned flight paths and at assigned altitudes
ILS Instrument Landing System – A navigation aid for landing in bad weather
LOC Localizer – The Azimuth portion of the ILS
LOM Locator, Outer Marker
MALSR Medium intensity Approach Light Sequence flashers for Runway
MHR Mather Airport (FAA designation)
MM Middle Marker
MSL Mean Sea Level – The height of an aircraft above sea level.
NDB Non-directional beacon – Navigation aid for aircraft
OAK Oakland Airport (FAA designation)
RCL Runway Centerline Lights
SAC Sacramento Executive Airport (FAA designation)
SCAS Sacramento County Airport System
SMF Sacramento Metro International Airport (FAA designation)
TRACON FAA’s terminal control facility for Sacramento
UPS United Parcel Service (a major cargo air carrier)
VASI Visual Approach Slope Indicator
VOR Visual Omni Ranger – A navigator aid for aircraft
YOSHE Co-located distance and directional navigation aid.
VFR Visual Flight Rules – The pilot flies clear of the clouds