Definition
A radial reference written in standard navigation shorthand, identifying the 084-degree magnetic radial from the SXC (San Marcus) VOR navigation facility. The three-letter identifier names the VOR station, and the 'R-' prefix followed by three digits names the specific outbound magnetic bearing from that station.
Plain English
It is a way of pointing to one specific line going out from a navigation station. SXC is the name of the station, and R-084 means the line that runs out from it on a heading of 084 degrees.
Context Anchor
Seen in instrument procedure descriptions and path-and-terminator leg examples, where a route segment is defined by a specific radial from a navigation facility.
Derivation
The 'R' stands for radial, from the Latin 'radius', meaning a spoke or ray extending out from a center point. A VOR transmits signals in every direction like spokes from a wheel hub, so each direction is called a radial. The three-digit number is always the outbound magnetic bearing from the station.
Why Pilots Care
It marks the exact location where a procedure leg ends or changes direction, ensuring the aircraft follows the published track safely.
Grounding Statement
Picture SXC as the center of a compass rose; SXC R-084 is the spoke that points out from that center at 084 degrees magnetic.
Intuition Check
Do not read SXC R-084 as a runway, route number, or heading by itself. It means the 084-degree radial from SXC, and a radial is named for the direction away from the facility.
Example Sentence 1
The procedure crosses SXC R-084 at 6,000 feet before turning to intercept the final approach course.
Example Sentence 2
The aircraft intercepts the inbound course after passing SXC R-084.