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Old 14th Jan 2019, 08:27
  #601 (permalink)  
nighthawk117
 
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Originally Posted by EGPO
Sorry I'm not fully up on terminology , what is a ' Displaced threshold ',
Basically it means that not all of the runway is usable due to objects at the end of the runway. Having looked at some images, it seems the issue has been corrected significantly.

Here is a photo of the old runway (sorry about the size, its all i could find):



Notice all the arrows... the actual runway markings dont start until about 1/4 of the way along the runway. This is a "displaced threshold" - landing aircraft dont touch down at the start of the strip, but about 1/4 of the way along it.

Here's the new runway:



Not as bad as it was.. but still displaced slightly. From the charts, the physical runway is 1829 metres, but with a TORA (Take off run available) of 1690, and LDA (Landing Distance Available) of 1490m.

Aberdeen used to have a runway length of 1800m. They extended it by 200m, as flights to Spain couldnt operate direct from there and needed to refuel en-route. Obviously Carlisle is a little further south, but with the TORA available, I suspect Spain is still out of reach from CAX.
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