EASA NAV(A)intermediate
A runway number is a rounded indication of magnetic direction, so a magnetic variation change can change the runway number without changing the runway's physical alignment.
Answer
true
Explanation
Runway identifiers represent magnetic direction rounded to the nearest ten degrees. As magnetic variation changes, the corresponding magnetic bearing may cross a rounding boundary. **Key takeaway:** A changed runway number does not necessarily mean the runway moved. **Glossary:** **Magnetic bearing**: Direction measured from magnetic north; **rounding boundary**: The point at which a value rounds to the next number.
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