LHR 09L Displaced Threshold

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23rd Jan 2009, 03:55

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Sawbones

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LHR 09L Displaced Threshold

Any comments please as to why LHR 09L touchdown is displaced by approximately 1,000 feet?

Curious. Thanks.

23rd Jan 2009, 16:34

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Sir George Cayley

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Windsor Castle?

Just a guess though heaven knows why the monarchy built it so close to LHR.

Sir George (I've met her y'know) Cayley

23rd Jan 2009, 18:12

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Musket90

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Presumably obstacles on the approach like castles, roads etc. 09R is also displaced, but it's slightly further from castle, so probably roads etc.

23rd Jan 2009, 20:34

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NigelOnDraft

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Nearest road best guess IMHO

NoD

24th Jan 2009, 15:07

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Sir George Cayley

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The correct and more serious answer can be found in CAP168 Licensing of Aerodromes. Chapter 3 gives you the physical requirements and Chapter 4 the Treatment of Obstacles. The acronym APPS is relevant in this case.

Sir George Cayley

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