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Runway Centerline Lights  
User currently offlineUsairways@clt From United States of America, joined Aug 2000, 209 posts, RR: 3
Posted (14 years 11 months 1 week 10 hours ago) and read 4885 times:


I was looking through a few pictures, and all of them had centerline lights that were not in the center of the runway. For example:

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Photo © Michael F. McLaughlin

What, if any, is the reason for this?


4 replies: All unread, jump to last
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 1, posted (14 years 11 months 1 week 7 hours ago) and read 4832 times:

On a 150-foot wide runway, the runway centerline lights being a foot either side of the painted center strip is really no big deal... It's done that way so the centerline lights (imbedded in the pavement) don't get covered up by paint when the runway was stripe was laid down, ditto for repainting...

User currently offlineCOboeing777 From United States of America, joined Feb 2001, 693 posts, RR: 4
Reply 2, posted (14 years 11 months 1 week 6 hours ago) and read 4821 times:

I thought it was so that planes didnt run over them constantly when landing or taking off. They would make a rumbling noise inside the plane similar to how when you drive over the reflectors they have between lanes on some highways, right? Not that every aircraft that lands touches down dead on. Maybe its both reasons...mine and the last post?

User currently offlineAir2gxs From , joined Dec 1969, posts, RR:
Reply 3, posted (14 years 11 months 6 days 22 hours ago) and read 4804 times:

Personally, I would lean towards the elimination of the thumpity, thump noise and associated vibration as the aircraft accelerates down the runway for take-off.

Thiough the paint theory has a whole lot of merit also

User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 4, posted (14 years 11 months 6 days 3 hours ago) and read 4762 times:

The "thumpity thump" noise can easily be avoided on takeoff roll by lining up the aircraft to avoid running imbedded lights with one of the nosewheels.

Now, on the other hand, assume that a 10,000 foot runway has imbedded lights every 2 feet. Laying down a centerline stripe on top of those lights is gonna cover a good many of them up. Not all 5,000, but how many? 500? 1,000? 2,000? In any event, most airport managements have better things to spend money on than having laborers out there with turpentine and toothbrushes to clean a bunch of lights....  Big grin

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