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Anti-collision Lights Offset?  
User currently offlineExitrowaisle From United States of America, joined May 2000, 266 posts, RR: 0
Posted (14 years 2 months 8 hours ago) and read 2565 times:

On a recent MD-80 night flight, I noticed the right wing was almost fully illuminated by the flashing red anti-collision light on top of the plane, while only the wing tip was illuminated on the left. Are the anti-collision lights on the MD-80 offset from the center of the fuselage? If so, why? Are all planes like this and I've just never noticed?

8 replies: All unread, jump to last
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 1, posted (14 years 2 months 6 hours ago) and read 2512 times:

Never noticed it before, but it's sure not on the centerline, is it...

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Photo © Gregg Stansbery

User currently offlineExitrowaisle From United States of America, joined May 2000, 266 posts, RR: 0
Reply 2, posted (14 years 1 month 4 weeks 6 hours ago) and read 2454 times:

You're right, it's way off center! Does anyone know why that is?

User currently offlineFBU 4EVER! From Norway, joined Jan 2001, 998 posts, RR: 7
Reply 3, posted (14 years 1 month 3 weeks 6 days 16 hours ago) and read 2415 times:

It is offset to the right so it can be accessed from inside the cabin.
It may also be offset,like antennas on the aft part of the fuselage,so as not to disturb the airflow into the ram-air intake on the fin leading edge.I'm not sure on this one,though.

"Luck and superstition wins all the time"!
User currently offlineBio15 From Colombia, joined Mar 2001, 1089 posts, RR: 7
Reply 4, posted (14 years 1 month 3 weeks 6 days 6 hours ago) and read 2382 times:

What is that ram air intake on the fin's base for? Is it the APU intake?

User currently offlineXFSUgimpLB41X From United States of America, joined Aug 2000, 4300 posts, RR: 34
Reply 5, posted (14 years 1 month 3 weeks 6 days 6 hours ago) and read 2375 times:


yep, thats the APU intake.

lalalalalalalalalalalalalala (this post too short thing is full of crap)

Chicks dig winglets.
User currently offlineWhalepilot From United States of America, joined Jun 2001, 91 posts, RR: 0
Reply 6, posted (14 years 1 month 3 weeks 1 day 6 hours ago) and read 2316 times:

That is NOT the APU intake, it is the heat exchanger air inlet. The APU inlet is on the bottom of the fuselage beneath the engines.

User currently offlineQuerosene From United States of America, joined Oct 2001, 89 posts, RR: 0
Reply 7, posted (14 years 1 month 2 weeks 6 days 10 hours ago) and read 2255 times:

Look carefully at the picture above. You will see also that the antenna is slight offset to the right of the fuselage.


User currently offlineJettblasterp From United States of America, joined May 2000, 203 posts, RR: 1
Reply 8, posted (14 years 1 month 2 weeks 6 days 1 hour ago) and read 2239 times:

Is it possible there is an airframe rib that runs the center of the a/c?

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