NZAA airport question

[Thomas_G]

Why there 23L Runway @ NZAA

There only one runway at NZAA which is 23L, wait 23 Left? There no 23R, doesn’t make sense for me. Do everyone know why? Thank, Gabe

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NZAA runway question

Why does NZAA have 05R, but no 05L? I only realized this yesterday, and it appears that other airports in NZ also have non-existing parallel runways as well… Also, is this in the right category?

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Weird Runway lettering

I recently was inbound to NZAA (Auckland) and I noticed that the runway is labeled 5R but there is only one runway. Can someone please explain why this is? [Screenshot_20190926-151156] Then my other question is why is there a “T” after some runway numbers in the Arctic?

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And keeps going…