Glossary
Instrument Flight
Reporting Point: A specified geographical location in relation to which the position of an aircraft can be
reported. Compulsory reporting points are indicated by solid triangles and non-compulsory reporting
points by open triangles.
Restricted Area: An airspace designated for other than air traffic control purposes over which the flight of
aircraft is restricted in accordance with certain specified conditions.
Runway Heading: The magnetic direction indicated by the runway number. When cleared to “fly/
maintain runway heading,” pilots are expected to comply by flying the heading indicated by the runway
number without applying any drift correction.
Runway Visual Range (RVR): A value, reported in hundreds of ft, that represents the horizontal distance
a pilot will see down the runway from the approach end. RVR, in contrast to prevailing or runway visibility,
represents what a pilot in a moving aircraft should see looking down the runway and is horizontal, not
slant, visual range. RVR for a specific field and runway would be found in FLIP high/low altitude terminal
procedures (approach plates).
S
SAR: Search and rescue.
SID: See Standard Instrument Departure.
darkness or when the aircraft is in instrument weather conditions that permits the use of a single UHF
frequency during approach, normally beginning at the start of penetration and continuing to touchdown.
Spatial Disorientation: A condition that exists when a pilot does not correctly perceive his position,
attitude, or motion relative to the earth.
Special Use Airspace: Airspace wherein certain activities must be confined because of their nature and/
or wherein limitations are imposed upon aircraft operations that are not a part of those activities.
Standard Instrument Departure (SID): Preplanned coded air traffic control IFR departure routing,
preprinted for pilot use in graphic and textual or textual form only.
STAR: A STAR is a pre-planned instrument flight rule (IFR) air traffic control arrival procedure published
for the pilot’s use in graphical and/or textual form. STARs provide transition from the enroute structure to
an outer fix or an instrument approach fix/arrival waypoint in the terminal area. Its purpose is to simplify
clearance delivery procedures.
Station: A radio navigational aid. (See Navigational Aid.)
Straight-In Approach: An instrument approach where the final approach is begun without first having
executed a procedure turn. This type of approach is not necessarily completed with a straight-in landing
or made to straight-in landing minimums.
Surveillance Approach (ASR): An instrument approach conducted in accordance with directions issued
by a controller referring only to a surveillance radar display. (See GCA.)
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