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flyingcanuck

Mar 8 2005, 09:45 PM

I was just wondering how the landing zone lights and centerline lights don break when an aricraft passes over. What are they made of?

MD-11ForFED-EX

Mar 8 2005, 10:07 PM

I've always wondered myself. They might be implanted into the ground i don't

know. Correct me if i'm wrong.

TY

cirebackwards

Mar 8 2005, 10:07 PM

QUOTE(flyingcanuck @ Mar 8 2005, 05:45 PM)

I was just wondering how the landing zone lights and centerline lights don break when an aricraft passes over. What are they made of?

Found this on google:

QUOTE(http://www.erau.edu/er/newsmedia/articles/cont12.html)

Recessed lights are located on the runway's centerline at most large airports. For most pilots, it is initially a bit unnerving to land on these. They are, however, safely situated under protective covers.

When I flew during the day I never really noticed lol. I don't think the other lighting like is recessed though.

I found a spec sheet with an image of one here:
http://airportsystems.honeywell.com/pdf/ai...l850a_l_sec.pdf

mpeterson

Mar 8 2005, 10:25 PM

when you roll over them they make thumping noises, at least the ones at KSTP...

Hawker

Mar 8 2005, 10:59 PM

I call'em turtles! They are noisey and make a good bump!

flyingcanuck

Mar 9 2005, 12:00 AM

Thanks for the info guys! :D

flight boffin

Mar 9 2005, 03:50 AM

Just the same way thats Cats eyes on the road don't break. They are protected by a plastic cover which is on both sides of the light. This is higher than actual light which means when a wheel runs over it the light is completely untouched. Also when a wheel runs over it light is pushed down. This acts as a form of suspension.

VH-OJQ

Mar 9 2005, 03:55 AM

w0w.. never realised that it would bump down... ;)

"u learn something new everyday!!" B)

EmiratesA330

Mar 9 2005, 08:52 AM

They are built into the ground.If you have ever traveled on a highway and noticed between the lanes there are small deflectors thats what the runway lights are like maybe a little bigger with a built in light.

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