Pilot/Controller Glossary

RPIC-

RUNWAY ENTRANCE LIGHTS (REL)-An array
of red lights which include the first light at the hold
line followed by a series of evenly spaced lights to the
runway edge aligned with the taxiway centerline, and
one additional light at the runway centerline in line
with the last two lights before the runway edge.

(See REMOTE PILOT IN COMMAND.)

RRIA-
(See REROUTE IMPACT ASSESSMENT.)

RSA-
(See RUNWAY SAFETY AREA.)

RTR-
(See REMOTE TRANSMITTER/RECEIVER.)

RUNWAY- A defined rectangular area on a land
airport prepared for the landing and takeoff run of
aircraft along its length. Runways are normally
numbered in relation to their magnetic direction
rounded off to the nearest 10 degrees; e.g., Runway
1, Runway 25.
(See PARALLEL RUNWAYS.)
(See ICAO term RUNWAY.)

RUNWAY [ICAO]- A defined rectangular area on a
land aerodrome prepared for the landing and takeoff
of aircraft.
RUNWAY CENTERLINE LIGHTING-
(See AIRPORT LIGHTING.)

RUNWAY CONDITION CODES (RwyCC)- Numerical readings, provided by airport operators, that
indicate runway surface contamination (for example,
slush, ice, rain, etc.). These values range from "1"
(poor) to "6" (dry) and must be included on the ATIS
when the reportable condition is less than 6 in any one
or more of the three runway zones (touchdown,
midpoint, rollout).
RUNWAY CONDITION READING- Numerical
decelerometer readings relayed by air traffic
controllers at USAF and certain civil bases for use by
the pilot in determining runway braking action.
These readings are routinely relayed only to USAF
and Air National Guard Aircraft.
(See BRAKING ACTION.)

RUNWAY CONDITION REPORT (RwyCR)- A
data collection worksheet used by airport operators
that correlates the runway percentage of coverage
along with the depth and type of contaminant for the
purpose of creating a FICON NOTAM.
(See RUNWAY CONDITION CODES.)

RUNWAY END IDENTIFIER LIGHTS (REIL)-
(See AIRPORT LIGHTING.)

RUNWAY GRADIENT- The average slope, measured in percent, between two ends or points on a
runway. Runway gradient is depicted on Government
aerodrome sketches when total runway gradient
exceeds 0.3%.
RUNWAY HEADING- The magnetic direction that
corresponds with the runway centerline extended, not
the painted runway number. When cleared to "fly or
maintain runway heading," pilots are expected to fly
or maintain the heading that corresponds with the
extended centerline of the departure runway. Drift
correction shall not be applied; e.g., Runway 4, actual
magnetic heading of the runway centerline 044, fly
RUNWAY IN USE/ACTIVE RUNWAY/DUTY
RUNWAY- Any runway or runways currently being
used for takeoff or landing. When multiple runways
are used, they are all considered active runways. In
the metering sense, a selectable adapted item which
specifies the landing runway configuration or
direction of traffic flow. The adapted optimum flight
plan from each transition fix to the vertex is
determined by the runway configuration for arrival
metering processing purposes.
RUNWAY LIGHTS-
(See AIRPORT LIGHTING.)

RUNWAY MARKINGS-
(See AIRPORT MARKING AIDS.)

RUNWAY OVERRUN- In military aviation exclusively, a stabilized or paved area beyond the end of a
runway, of the same width as the runway plus
shoulders, centered on the extended runway
centerline.
RUNWAY PROFILE DESCENT- An instrument
flight rules (IFR) air traffic control arrival procedure
to a runway published for pilot use in graphic and/or
textual form and may be associated with a STAR.
Runway Profile Descents provide routing and may
depict crossing altitudes, speed restrictions, and
headings to be flown from the en route structure to the
point where the pilot will receive clearance for and