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Source - Vi.potsdam.ny.us - Potsdam

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minimums.<br />

INSTRUMENT FLIGHT RULES (IFR) - Rules by which aircraft are operated without visual<br />

reference to the ground, <strong>us</strong>ually when cloud ceiling are less than 1,000 feet or visibility is less than 3<br />

miles.<br />

INSTRUMENT LANDING SYSTEM (ILS) - A system which provides in the aircraft, the lateral,<br />

longitudinal, and vertical guidance necessary for landing.<br />

INSTRUMENT OPERATION - A landing or takeoff conducted while operating on an instrument<br />

flight plan.<br />

INSTRUMENT RUNWAY - A runway equipped with electronic and visual navigation aids for<br />

which a precision or non-precision approach procedure having straight-in landing minimums has<br />

been established.<br />

INTEGRATED NOISE MODEL (INM) - A computer-based airport noise exposure modelling<br />

program.<br />

ITINERANT OPERATION - All aircraft arrivals and departures other than local operations.<br />

-L-<br />

LANDING MINIMUMS/IFR LANDING MINIMUMS - The minimum visibility prescribed for<br />

landing while <strong>us</strong>ing an instrument approach procedure.<br />

LARGE AIRCRAFT - A large aircraft is an aircraft of more than 12,500 pounds (5,700 kg)<br />

maximum certificated takeoff weight.<br />

LAT - Latitude.<br />

LOC (LOCALIZER) - Part of ILS that provides course guidance to the runway.<br />

LOCAL OPERATION - Operations performed by aircraft which: a) operate in the local traffic<br />

pattern or within sight of the tower; b) are known to be departing for, or arriving from, flight in local<br />

practice areas located within a 20-mile radi<strong>us</strong> of the control tower; or c) execute simulated<br />

instrument approaches or low passes at the airport.<br />

LONG - Longitude.<br />

-M-<br />

MASTER PLAN - Long-range plan of airport development requirements.<br />

MGW - Maximum Gross Weight.<br />

MILITARY OPERATION - An operation by military aircraft.<br />

F:\Project\203 - VILLAGE OF POTSDAM\203044001 - Airport Master Plan Update\Reports\Appendices\Docs\Appendix D Glossary & Abbreviations.doc<br />

5

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