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Lights On The Runway Surfaces

TurboTristar From , joined Dec 1969, posts, RR:
Posted (11 years 10 months 3 weeks 21 hours ago) and read 1510 times:

I just thought of this tonight. When the lights are turned on in the airport grounds (twys, aprons, rwys.....), is there a hazard of an a/c rolling over the light and smashing it? Probably not, so what's the scoop? Are the lights buried underneath the tarmac and have a transparent "cover" over them? Or is it more complicated? Info is appreciated Smile

TurboTristar

9 replies: All unread, jump to last

Sushka From United States of America, joined Nov 1999, 4784 posts, RR: 16
Reply 1, posted (11 years 10 months 3 weeks 19 hours ago) and read 1466 times:

I had this same question a while ago. I found out that they are imbedded.

Pershoyu Spravoyu Litaki!

Iainhol From , joined Dec 1969, posts, RR:
Reply 2, posted (11 years 10 months 3 weeks 19 hours ago) and read 1451 times:

Light on the taxi and runways are inbedded however there is a little bump when you taxi over them which will not damage the aircraft, however make the ride uncomfortable, for this reason the lights are slight off center line.
The only lights that stick out of the groud are the blue taxiway edge lights, the do occasionally get broke when some one mis judges a corner.
Iain

Nicolaki From , joined Dec 1969, posts, RR:
Reply 3, posted (11 years 10 months 3 weeks 12 hours ago) and read 1429 times:

Hey Turbo,

Here's the picture of a centerline light, they might be a bit different depending on the manufacturer but essentially works the same way. They are just embedded into the runway/taxiway surface

While taxiway edge light are just a bulb as Lain described

Regards,
Nicolas

Sushka From United States of America, joined Nov 1999, 4784 posts, RR: 16
Reply 4, posted (11 years 10 months 3 weeks 12 hours ago) and read 1422 times:

That looks more like a smoke detector than a light! Smile/happy/getting dizzy

I have seen ones that are lights that are covered by glass in Moscow. I guess they vary.

Pershoyu Spravoyu Litaki!

TurboTristar From , joined Dec 1969, posts, RR:
Reply 5, posted (11 years 10 months 3 weeks 5 hours ago) and read 1392 times:

My apologies Sushka- That time I didn't do a search and it got me! Thank you for the picture which makes it easier to understand

TurboTristar From , joined Dec 1969, posts, RR:
Reply 6, posted (11 years 10 months 3 weeks 5 hours ago) and read 1389 times:

Thank you Nicolaki for the picture

SkyWestPilot From , joined Dec 1969, posts, RR:
Reply 7, posted (11 years 10 months 2 weeks 6 days 9 hours ago) and read 1360 times:

If you ever hear an airline pilot use the phrase "killing turtles" you'll know they mean. Heading down the runway hitting all the lights makes a thump-thump-thump sound. It's a little more noticeable in the cockpit because it's right above the nose gear.

Bangsmic From , joined Dec 1969, posts, RR:
Reply 8, posted (11 years 10 months 2 weeks 6 days ago) and read 1346 times:

The visible portion of the in-pavement light is a steel cover that does indeed resemble a turtle's shell. There is a thick lens on one or both sides of the cover depending on the application with a bulb and color filter inside. The light is only visible from the desired direction of travel and can be different colors on each side. The cover is bolted to a "can" imbedded in the runway surface which contains power supply wires and a transformer. These covers take a beating from all the traffic and can come loose on occassion. This is one of the things the airport operation people look for during runway inspections and during runway closures.

Skystar From Australia, joined Jan 2000, 1363 posts, RR: 3
Reply 9, posted (11 years 10 months 2 weeks 5 days 22 hours ago) and read 1344 times:

I can tell you, running over the runway lights at SIN in a Lufthansa Airbus A340 at 290km/h is not a fun experience.

Our captain was very precise, however he also flew down the runway exactly over the runway lights, which meant a lot of banging in the cabin - you could watch the overhead lockers dancing as we approached Vr.

Cheers,

Justin

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