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Runway Lighting With Displaced Threshold  
User currently offlineCoolGuy From United States of America, joined Jan 2005, 414 posts, RR: 0
Posted (8 years 6 months 1 week 6 days 8 hours ago) and read 9976 times:

How do lighting systems work if there is a displaced threshold? All those lights can't be on the runway, so how does this work. I think runway lighting systems are pretty cool too, any recommendations to look at online?

4 replies: All unread, jump to last
User currently offlineJetlagged From United Kingdom, joined Jan 2005, 2620 posts, RR: 25
Reply 1, posted (8 years 6 months 1 week 6 days 1 hour ago) and read 9949 times:

The only difference with a displaced threshold is that the approach lighting is not elevated above the runway surface.

The FAA website has some information about runway lighting systems.

The glass isn't half empty, or half full, it's twice as big as it needs to be.
User currently offlineN231YE From , joined Dec 1969, posts, RR:
Reply 2, posted (8 years 6 months 1 week 6 days ago) and read 9940 times:

I believe they would be placed inside the ground (like centerline and hold-short lights).

At CLE, the ALSF-2 for 24R crosses over 10-28. For that part of the ALSF-2 that lies "in" 10-28, the lights are placed in cans, flush with the runway surface.

User currently offlineBoeingOnFinal From Norway, joined Apr 2006, 476 posts, RR: 0
Reply 3, posted (8 years 6 months 1 week 5 days 23 hours ago) and read 9929 times:

You would have the same approach lighting as you would without the displaced threshold, although the runway lighting itself might have some additional elements to it. It all depends on whether it is a starter extension (blue edge lights) or a stopway (red edge lights). This is if it is required to have lights though, which depends on what type of operation/weather minima the runway is used for.

One major point is that where you are required to have center line lights, and you have a displaced threshold usable for aircraft movement, the approach lighting is sufficient as far as center line goes up to the threshold.

This distribution (UK CAA CAP637) will give a very good overlook of the different lighting systems and their requirements.

User currently offlineJoness0154 From United States of America, joined Nov 2005, 667 posts, RR: 0
Reply 4, posted (8 years 6 months 1 week 5 days 16 hours ago) and read 9884 times:

You can have REILs and in ground threshold lighting.

I don't have an attitude problem. You have a perception problem
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