Definition
KRYN is the FAA location identifier and named waypoint for Gratiot Community Airport in Alma, Michigan. In the context of an NDB approach chart, KRYN appears as a five-letter fix name used to label the airport reference on the procedure.
Plain English
KRYN is the short code name the FAA uses for Gratiot Community Airport in Alma, Michigan. On the approach chart, it marks the airport itself.
Context Anchor
Seen on instrument approach charts, procedure examples, flight plans, and navigation equipment when Ryan Field Airport is the airport being identified.
Derivation
In the United States, many four-letter airport identifiers begin with “K” and then use the airport’s three-letter identifier. Ryan Field’s three-letter identifier is RYN, so its four-letter identifier is KRYN.
Why Pilots Care
Pilots must correctly identify and tune the KRYN beacon to execute the approach safely and remain aligned with the published procedure.
Intuition Check
Do not read KRYN as a word or a radio instruction. It is an airport identifier: KRYN means Ryan Field Airport.
Example Sentence 1
The instructor pointed to KRYN on the chart and confirmed that was the destination airport for the NDB approach.
Example Sentence 2
Figure 4-55 illustrates the protected airspace and step-down fixes along the KRYN NDB course.