Runway 17T and 35T at CYRB

Does anyone know what the “T” means?

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T refers to the runway numbering being based on the true heading, instead of the magnetic heading where it’s used at most airports.

True heading is usually only at airports in the far north such as at Thule Airbase where this is most commonly referenced.

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Basically, the T means ‘True’.

T - True
R - Right
C - Center
L - Left

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Rare:
H - Helicopter
U - Unmanned Aerial Vehicle
Both typically at US Army airfields

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