Order 7110.65P, Air Traffic Control, with changes

8/5/04Pilot/Controller GlossarySHORT TAKEOFF AND LANDING AIRCRAFT−An aircraft which, at some weight within its approvedoperating weight, is capable of operating from aSTOL runway in compliance with the applicableSTOL characteristics, airworthiness, operations,noise, and pollution standards.(See VERTICAL TAKEOFF AND LANDINGAIRCRAFT.)SIAP−(See STANDARD INSTRUMENT APPROACHPROCEDURE.)SID−(See STANDARD INSTRUMENT DEPARTURE.)SIDESTEP MANEUVER− A visual maneuver accomplishedby a pilot at the completion of aninstrument approach to permit a straight-in landingon a parallel runway not more than 1,200 feet to eitherside of the runway to which the instrument approachwas conducted.(Refer to AIM.)SIGMET− A weather advisory issued concerningweather significant to the safety of all aircraft.SIGMET advisories cover severe and extreme turbulence,severe icing, and widespread dust or sandstormsthat reduce visibility to less than 3 miles.(See AIRMET.)(See AWW.)(See CONVECTIVE SIGMET.)(See CWA.)(See ICAO term SIGMET INFORMATION.)(Refer to AIM.)SIGMET INFORMATION [ICAO]− Informationissued by a meteorological watch office concerningthe occurrence or expected occurrence of specifieden-route weather phenomena which may affect thesafety of aircraft operations.SIGNIFICANT METEOROLOGICAL INFOR-MATION−(See SIGMET.)SIGNIFICANT POINT− A point, whether a namedintersection, a NAVAID, a fix derived from aNAVAID(s), or geographical coordinate expressed indegrees of latitude and longitude, which is establishedfor the purpose of providing separation, as areporting point, or to delineate a route of flight.SIMPLIFIED DIRECTIONAL FACILITY− A NA-VAID used for nonprecision instrument approaches.The final approach course is similar to that of an ILSlocalizer except that the SDF course may be offsetfrom the runway, generally not more than 3 degrees,and the course may be wider than the localizer,resulting in a lower degree of accuracy.(Refer to AIM.)SIMULATED FLAMEOUT− A practice approachby a jet aircraft (normally military) at idle thrust to arunway. The approach may start at a runway (highkey) and may continue on a relatively high and widedownwind leg with a continuous turn to final. Itterminates in landing or low approach. The purposeof this approach is to simulate a flameout.(See FLAMEOUT.)SIMULTANEOUS ILS APPROACHES− An approachsystem permitting simultaneous ILS/MLSapproaches to airports having parallel runwaysseparated by at least 4,300 feet between centerlines.Integral parts of a total system are ILS/MLS, radar,communications, ATC procedures, and appropriateairborne equipment.(See PARALLEL RUNWAYS.)(Refer to AIM.)SIMULTANEOUS MLS APPROACHES−(See SIMULTANEOUS ILS APPROACHES.)SINGLE DIRECTION ROUTES− Preferred IFRRoutes which are sometimes depicted on highaltitude en route charts and which are normally flownin one direction only.(See PREFERRED IFR ROUTES.)(Refer to AIRPORT/FACILITY DIRECTORY.)SINGLE FREQUENCY APPROACH− A serviceprovided under a letter of agreement to militarysingle-piloted turbojet aircraft which permits use ofa single UHF frequency during approach for landing.Pilots will not normally be required to changefrequency from the beginning of the approach totouchdown except that pilots conducting an en routedescent are required to change frequency whencontrol is transferred from the air route traffic controlcenter to the terminal facility. The abbreviation“SFA” in the DOD FLIP IFR Supplement under“Communications” indicates this service is availableat an aerodrome.SINGLE-PILOTED AIRCRAFT− A military turbojetaircraft possessing one set of flight controls,tandem cockpits, or two sets of flight controls butoperated by one pilot is considered single-piloted byPCG S−3