General > General Technical Chat

Sydney skyline (and synchronised aircraft obstruction lighting)

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EEVblog:

--- Quote from: Halcyon on August 23, 2022, 07:17:43 am ---
--- Quote from: james_s on August 23, 2022, 07:12:13 am ---Many of the flasher units for marine navigation buoys have an option of using a GPS receiver for synchronization. I noticed the same thing with the obstruction lights on the wind turbines in Eastern Washington. I'm not actually sure why they synchronize them, it seems that random flashing would be more eye catching.

--- End quote ---
I'm sure there is a reason for it. Perhaps having a series of lights flashing at once allows the pilot to paint an invisible line linking them together in his mind. I really don't know... any pilots here?

--- End quote ---

I think it would be so they aren't lost in a sea of other random blinky lights.

EEVblog:
Just tried to google it and this thread popped up as #3 !

Halcyon:

--- Quote from: EEVblog on August 23, 2022, 09:32:06 am ---That's Tom Scott level video interesting.
I have been looking for content again for my EEVdiscover channel.
I wonder who would be the expert on this stuff?

--- End quote ---

I can hook you up with an on-location shoot. BYO camera.

EEVblog:
FAA requirements:
https://www.faa.gov/documentlibrary/media/advisory_circular/ac_70_7460-1l_.pdf
Advised for catenary.
Compulsary sync for wind turbines to within 0.05sec, section 13.5.3

Australia: https://www.casa.gov.au/node/55134

Halcyon:
if you're interested in a video Dave, flick me an email. I actually know someone in the "crane" business who would be happy to talk to you. Might even have some contacts in the field to get you up on top for some close-up shots?

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